Datasheet Middle Power Class-D Speaker Amplifier series 15W+15W Class D Speaker Amplifier for Digital Input Key Specifications Supply voltage: 10V to 18V Speaker output power: 15W+15W (VCC=16V, RL=8, Power Limit=Off) Total harmonic distortion: 0.08(Po=4.5W) Crosstalk: 80dB(Typ.) PSRR: 65dB(Typ.) Output noise voltage: 100Vrms(Typ.) Standby current: 100A (Typ.) Operating temperature range: -25 to +85 e N co ew m m D es en ig de ns d f General Description BD5452AMUV is a Class D Speaker Amplifier designed for Flat-panel TVs in particular for space-saving and low-power consumption, delivers an output power of 15W+15W. This IC employs state-of-the-art Bipolar, CMOS, and DMOS (BCD) process technology. With this technology, the IC can achieve high efficiency. In addition, the IC is packaged in a compact reverse heat radiation type power package to achieve low power consumption and low heat generation and eliminates necessity of external heat-sink up to a total output power of 30W. This product satisfies both needs for drastic downsizing, low-profile structures and many function, high quality playback of sound system. or BD5452AMUV W(Typ.) x D(Typ.) x H(Max.) 5.00mm x 5.00mm x 1.00mm VQFN032V5050 Typical Application Circuit SP ch1 (Lch) SP ch2 (Rch) Applications Flat Panel TVs (LCD, Plasma), Home Audio, Desktop PC, Amusement equipments, Electronic Music equipments, etc. MCLK OUT2N BCLK LRCLK SDATA OUT2P OUT1N ERROR PLMIT1 PLMIT0 MUTE RSTX OUT1P N ot R Features This IC has one system of digital audio interface.(I2S format, SDATA: 16 / 20 / 24bit, LRCLK: 32kHz / 44.1kHz / 48kHz, BCLK: 64fs(fixed), MCLK: 256fs / 512fs) Low supply current at RESET mode. The decrease in sound quality because of the change of the power supply voltage is prevented with the feedback circuitry of the output. In addition, a low noise and low distortion are achieved. Eliminate large electrolytic-capacitors for high performance of Power Supply Rejection. Power Limit Function. (at RL =8, 10W /5W /OFF) Available for Monaural mode. Within the wide range of the power supply voltage, it is possible to operate in a single power supply. (10 to 18V) It contributes to miniaturizing, making to the thin type, and the power saving of the system by high efficiency and low heat. Eliminates pop noise generated when the power supply goes on/off, or when the power supply is suddenly shut off. High quality muting performance is realized by using the soft-muting technology. This IC is a highly reliable design to which it has various protection functions. (High temperature protection, under voltage protection, Output short protection, Output DC voltage protection and Clock stop protection, (MCLK, BCLK, LRCLK) Small package (VQFN032V5050 package) contributes to reduction of PCB area. Package(s) VQFN032V5050 -con Digital Audio Source Figure 1. Typical Application Circuit Product structureSilicon monolithic integrated circuit This product is not designed protection against radioactive rays .www.rohm.com TSZ02201-0V1V0E954520-1-2 (c) 2012 ROHM Co., Ltd. All rights reserved. 1/51 TSZ2211114001 04.Oct.2012 Rev.001 Datasheet BD5452AMUV Pin Configuration e N co ew m m D es en ig de ns d f or (TOP VIEW) Figure 2. Pin Configuration Pin Description Pin No. Symbol I/O Pin No. Symbol I/O Pin No. 1 SDATA I 9 FILA O 17 GNDA BCLK I 10 3 LRCLK I 11 RSTX I 12 MUTEX I 13 REG_G O 14 ot 4 R 2 5 6 REG3 O 15 8 FILP O 16 GNDP1 OUT1P GNDP1 VCCP1 I/O Pin No. Symbol I/O I 25 GNDP2 - - 18 I 26 O 19 PLIMT0 I 27 O 20 PLIMT1 I 28 - 21 CLK_MOD I 29 O 22 ERROR O 30 O 23 - 24 VCCP2 OUT2P GNDP2 OUT2N O O O O I 31 VCCA I I 32 MCLK I N 7 OUT1N Symbol www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 2/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV Block Diagram ERROR CLK_MOD PLIMT1 PLIMT0 VCCP1 VCCP1 21 19 18 17 22 20 16 I/F VCCP1 Driver FET 1P 14 32 13 31 MCLK x8 Over Sampling Digital Filter 12 30 VCCA Driver FET 1N GNDP1 OUT1N 11 29 VCCA Driver FET 2N OUT1P OUT1N 10 28 PWM Modulator OUT1P GNDA 9 27 e N co ew m m D es en ig de ns d f Under Voltage Protection Over Voltage Protection Clock Stop Protection 15 Output Short Protection Output DC Voltage Protection High Temperature Protection GNDP1 or Driver FET 2P GNDP2 OUT2N 23 VCCP2 OUT2P OUT2N 24 26 OUT2P VCCP2 25 GNDP2 VCCP2 FILA FILA I2S I/F I/F REG_G REG3 1 2 3 4 5 6 7 SDATA BCLK LRCLK RSTX MUTEX REG_G REG3 FILP 8 FILP N ot R Figure 3. Block Diagram www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 3/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV Absolute Maximum Ratings VIN VPIN1 VPIN2 VPIN3 VERR Topr Tstg Tjmax Limit -0.3 to 22 3.26 4.56 -0.3 to 4.5 -0.3 to 7.0 -0.3 to 4.5 -0.3 to 22 -0.3 to 22 -25 to +85 -55 to +150 +150 Unit V W W V V V V V Conditions Pin 17,18,23,24,31 1 2 3 4 Pin 1 to 5, 19 to 21, 32 Pin 6,8,9 Pin 7 Pin 11,12,14,15,26,27,29,30 Pin 22 e N co ew m m D es en ig de ns d f Input voltage Terminal voltage 1 Terminal voltage 2 Terminal voltage 3 5 Open-drain terminal voltage Operating temperature range Storage temperature range Maximum junction temperature Symbol VCCmax Pd or Item Supply voltage Power dissipation Figure 4. Undershoot Tolerance Range ot R 1 The voltage that can be applied reference to GND (Pin 10, 13, 16, 25, 28). 2 Do not, however exceed Pd and Tjmax=150. 3 74.2mmx74.2mmx1.6mm, FR4, 4-layer glass epoxy board 2 2 (Top and bottom layer back copper foil size: 20.2mm , 2nd and 3rd layer back copper foil size: 5505mm ) Derating in done at 26.1mW/ for operating above Ta25. There are thermal via on the board. 5 (Reference info.) It is confirmed to this terminal to be able to tolerate undershoot within the range of the following Figure 4 with ROHM evaluation board. N Recommended Operating Rating Item Supply voltage Minimum load impedance www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 Symbol VCC RL Limit 10 to 18 3.6 3.2 4/51 Unit V Conditions VCC18V VCC16V TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV Electrical Characteristics Unless otherwise specified Ta=25, Vcc=12V, f=1kHz, RL=8, RSTX=3.3V, MUTEX=3.3V, PLIMT0=L, PLIMT1=L, fs=48kHz, MCLK=256fs, Output LC filterL=10uH, C=0.1uF Item Symbol Limit Min Typ Max Unit Pin Condition Total circuit ICC1 - 0.1 0.2 mA No load, RSTX=0V, MUTEX=0V Circuit current (Mute mode) ICC2 - 15 25 mA No load, RSTX=3.3V, MUTEX=0V Circuit current (Sampling mode) ICC3 - 50 80 mA No load, RSTX=3.3V, MUTEX=3.3V Open-drain terminal Low level voltage VERR - - 0.8 V Pin22, IO=0.5mA Regulator output voltage 1 VREGG 4.7 5.0 5.3 V Pin6 Regulator output voltage 2 e N co ew m m D es en ig de ns d f or Circuit current (Reset mode) VREG3 3 3.3 3.6 V Pin7 High level input voltage VIH 2 - 3.3 V Pin 1 to 5, 1921, 32 Low level input voltage VIL 0 - 0.9 V Pin 1 to 5, 19 to 21, 32 IIH 50 66 95 A Pin 1 to 5, 19 to 21, 32, VIN = 3.3V Maximum output power 1 PO1 - 15 - W Maximum output power 2 PO2 10 - - W Maximum output power 3 PO3 5 - - W Voltage gain1 GV26 25 26 27 dB Po=1W, PLIMT0=L, PLIMT1=L 6 GV20 19 20 21 dB Po=1W, PLIMT0=H, PLIMT1=L 6 GV17 16 17 18 dB Po=1W, PLIMT0=H, PLIMT1=H 6 Input current (Input pull-down terminal) Speaker Output Voltage gain2 Voltage gain3 Vcc=16V, THD+n=10%, PLIMT0=L, PLIMT1=L 6 Vcc=16V, THD+n=10%, PLIMT0=H, PLIMT1=L 6 Vcc=16V, THD+n=10%, PLIMT0=H, PLIMT1=H 6 THD1 - 0.16 - % Total harmonic distortion2 THD2 - 0.08 - % PO=4.5W, BW=20 to 20kHz (AES17) PLIMT0=H, PLIMT1=L 6 Total harmonic distortion3 THD3 - 0.24 0.3 % PO=1W, BW=20 to 20kHz (AES17) VCC=15.7V, PLIMT0=H, PLIMT1=L 6 CT 60 80 - dB R Total harmonic distortion1 PO=1W, BW=20 to 20kHz (AES17) PLIMT0=H, PLIMT1=L 6 Crosstalk ot PSRR (Sampling mode) N Output noise voltage (Sampling mode) PWM sampling frequency PO=1W, BW=IHF-A PLIMT0=H, PLIMT1=L 6 Vripple=1Vrms, f=1kHz 6 PLIMT0=H, PLIMT1=L 6 PSRR - 65 - dB VNO - 100 200 Vrms fPWM1 - 256 - kHz -dBFS, BW=IHF-A 6 PLIMT0=H, PLIMT1=L fs=32kHz 6 fPWM2 - 352.8 - kHz fs=44.1kHz 6 fPWM3 - 384 - kHz fs=48kHz 6 6 These items show the typical performance of device and depend on board layout, parts, and power supply. The standard value is in mounting device and parts on surface of ROHM's board directly. www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 5/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV Typical Performance Curves (Reference) (1/8) 0.14 70 0.12 60 0.10 50 0.08 0.06 RSTX=H RL=8 No signal MUTEX=H or 80 ICC [mA] 0.16 40 e N co ew m m D es en ig de ns d f ICC [mA] Unless otherwise specified Ta=25, Vcc=12V, f=1kHz, RL=8, RSTX=3.3V, MUTEX=3.3V, PLIMT0=L, PLIMT1=L, fs=48kHz, MCLK=256fs, Output LC filterL=10uH, C=0.1uF 30 0.04 0.02 0.00 MUTEX=L 20 RSTX=MUTEX=L RL=8 No signal 10 0 8 10 12 14 16 VCC [V] 18 20 8 10 Figure 5. VCC vs. ICC 16 18 20 Figure 6. VCC vs. ICC RL=8 90 80 RL=4 RL=4 1.5 ot 50 40 30 RL=8 ICC [A] R 60 RL=6 2.0 RL=6 70 Efficiency [%] 14 VCC [V] 2.5 100 N 12 1.0 20 0.5 10 0 0.0 0 5 10 15 Output Power [W/CH] 5 10 15 Output Power [W/CH] Figure 7. Output Power vs. Efficiency PLIMT0=L, PLIMT1=L www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 0 Figure 8. Output Power vs. ICC PLIMT0=L, PLIMT1=L 6/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV Typical Performance Curves (Reference) (2/8) Unless otherwise specified Ta=25, Vcc=12V, f=1kHz, RL=8, RSTX=3.3V, MUTEX=3.3V, PLIMT0=L, PLIMT1=L, fs=48kHz, MCLK=256fs, Output LC filterL=10uH, C=0.1uF VCC=12V RL=8 Po=1W fin=500Hz VCC=12V RL=8 Po=1W fin=500Hz 5ms/div or 5ms/div 2V/div e N co ew m m D es en ig de ns d f 2V/div Speaker Output Speaker Output MUTEX(5pin) MUTEX(5pin) 5V/div Figure 9. Waveform of Soft Start 20 Figure 10. Waveform of Soft Mute 3 RL=8 RL=8 VCC=16V 2.5 VCC=12V 15 10 2 ICC [A] R THD+N=10% THD+N=1% ot Output Power [W/CH] 5V/div 1.5 1 0.5 N 5 VCC=18V VCC=10V 0 0 8 10 12 14 16 18 20 0 VCC [V] 5 10 15 20 Output Power [W/CH] Figure 11. VCC vs. Output Power PLIMT0=L, PLIMT1=L Figure 12. Output Power vs. ICC PLIMT0=L, PLIMT1=L Dotted line means internal dissipation is over package power. www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 7/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV Typical Performance Curves (Reference) (3/8) Unless otherwise specified Ta=25, Vcc=12V, f=1kHz, RL=8, RSTX=3.3V, MUTEX=3.3V, PLIMT0=L, PLIMT1=L, fs=48kHz, MCLK=256fs, Output LC filterL=10uH, C=0.1uF 20 3 RL=6 VCC=12V RL=6 2.5 or VCC=16V 2 ICC [A] THD+N=1% 10 1.5 e N co ew m m D es en ig de ns d f Output Power [W/CH] VCC=10V THD+N=10% 15 VCC=18V 1 5 0.5 0 0 8 10 12 14 16 18 20 0 5 VCC [V] 10 15 Output Power [W/CH] Figure 14. Output Power vs. ICC PLIMT0=L, PLIMT1=L Figure 13. VCC vs. Output Power PLIMT0=L, PLIMT1=L Dotted line means internal dissipation is over package power. 3 20 RL=4 RL=4 VCC=10V 2.5 R ICC [A] 2 THD+N=10% 10 THD+N=1% N 5 VCC=16V VCC=18V 0.5 0 8 VCC=12V 1.5 1 ot Output Power [W/CH] 15 0 10 12 14 16 18 20 0 VCC [V] 2 4 6 8 10 Output Power [W/CH] Figure 15. VCC vs. Output Power PLIMT0=L, PLIMT1=L Figure 16. Output Power vs. ICC PLIMT0=L, PLIMT1=L Dotted line means internal dissipation is over package power. www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 8/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV Typical Performance Curves (Reference) (4/8) Unless otherwise specified Ta=25, Vcc=12V, f=1kHz, RL=8, RSTX=3.3V, MUTEX=3.3V, PLIMT0=L, PLIMT1=L, fs=48kHz, MCLK=256fs, Output LC filterL=10uH, C=0.1uF 0 30 OUT1 OUT2 No Signal B.W. none RL=8 Voltage Gain [dB] 25 -60 -80 -100 OUT1 OUT2 e N co ew m m D es en ig de ns d f Noise FFT [dBV] -40 Po=1W B.W. none RL=8 or -20 20 15 -120 -140 10 10 100 1k 10k 100k 10 100 Freq [Hz] Figure 17. FFT of output noise voltage 100 10k 100k Figure 18. Freq vs. Voltage Gain 10 f=1kHz f=100Hz f=10kHz 10 1k Freq [Hz] OUT1 OUT2 B.W. 20 to 20kHz AES17 RL=8 B.W. 20 to 20kHz AES17 RL=8 THD+N [%] R 1 ot THD+N [%] 1 N 0.1 0.01 0.01 0.1 0.01 0.1 1 10 Po [W] 100 1k 10k Freq [Hz] Figure 19. Po vs. THD+N www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 10 Figure 20. Freq vs. THD+N 9/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 100k Datasheet BD5452AMUV Typical Performance Curves (Reference) (5/8) Unless otherwise specified Ta=25, Vcc=12V, f=1kHz, RL=8, RSTX=3.3V, MUTEX=3.3V, PLIMT0=L, PLIMT1=L, fs=48kHz, MCLK=256fs, Output LC filterL=10uH, C=0.1uF 0 0 OUT2 to OUT1 OUT1 to OUT2 -20 -10 RL=8 Crosstalk [dB] -30 -60 -70 -40 e N co ew m m D es en ig de ns d f -40 -50 -50 -60 -70 -80 -80 -90 -90 -100 0.01 -100 0.1 1 10 10 100 Po [W] 0 10k 100k Figure 22. Freq vs. Crosstalk 30 OUT1 OUT2 -20 OUT1 OUT2 No Signal B.W. none RL=6 R -60 ot -80 -100 Po=1W B.W. none RL=6 25 Voltage Gain [dB] -40 Noise FFT [dBV] 1k Freq [Hz] Figure 21. Po vs. Crosstalk N RL=8 -20 -30 Crosstalk [dB] OUT2 to OUT1 OUT1 to OUT2 or -10 20 15 -120 -140 10 10 100 1k 10k 100k Freq [Hz] 100 1k 10k Freq [Hz] Figure 23. FFT of output noise voltage www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 10 Figure 24. Freq vs. Voltage Gain 10/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 100k Datasheet BD5452AMUV Typical Performance Curves (Reference) (6/8) Unless otherwise specified Ta=25, Vcc=12V, f=1kHz, RL=8, RSTX=3.3V, MUTEX=3.3V, PLIMT0=L, PLIMT1=L, fs=48kHz, MCLK=256fs, Output LC filterL=10uH, C=0.1uF 100 f=1kHz f=100Hz f=10kHz 10 B.W. 20 to 20kHz AES17 RL=6 OUT1 OUT2 or 10 THD+N [%] e N co ew m m D es en ig de ns d f THD+N [%] 1 1 B.W. 20 to 20kHz AES17 RL=6 0.1 0.1 0.01 0.01 0.01 0.1 1 10 100 10 100 Po [W] Figure 25. Po vs. THD+N -10 -20 Crosstalk [dB] -30 -50 OUT2 to OUT1 OUT1 to OUT2 -10 RL=6 N -70 RL=6 -30 -40 -50 -60 -70 -80 -80 -90 -90 -100 0.01 OUT2 to OUT1 OUT1 to OUT2 -20 ot -60 100k 0 R -40 10k Figure 26. Freq vs. THD+N Crosstalk [dB] 0 1k Freq [Hz] -100 0.1 1 10 100 Po [W] 100 1k 10k Freq [Hz] Figure 27. Po vs. Crosstalk www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 10 Figure 28. Freq vs. Crosstalk 11/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 100k Datasheet BD5452AMUV Typical Performance Curves (Reference) (7/8) Unless otherwise specified Ta=25, Vcc=12V, f=1kHz, RL=8, RSTX=3.3V, MUTEX=3.3V, PLIMT0=L, PLIMT1=L, fs=48kHz, MCLK=256fs, Output LC filterL=10uH, C=0.1uF 0 30 OUT1 OUT2 No Signal B.W. none RL=4 Voltage Gain [dB] 25 -60 -80 -100 e N co ew m m D es en ig de ns d f Noise FFT [dBV] -40 Po=1W B.W. none RL=4 OUT1 OUT2 or -20 20 15 -120 10 -140 10 100 1k 10k 100k 10 100 Freq [Hz] Figure 29. FFT of output noise voltage 100 10k 100k Figure 30. Freq vs. Voltage Gain 10 f=1kHz f=100Hz f=10kHz 10 1k Freq [Hz] OUT1 OUT2 B.W. 20 to 20kHz AES17 RL=4 B.W. 20 to 20kHz AES17 RL=4 ot 1 THD+N [%] THD+N [%] R 1 0.1 N 0.1 0.01 0.01 0.01 0.1 1 10 100 100 1k 10k Freq [Hz] Po [W] Figure 31. Po vs. THD+N www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 10 Figure 32. Freq vs. THD+N 12/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 100k Datasheet BD5452AMUV Typical Performance Curves (Reference) (8/8) Unless otherwise specified Ta=25, Vcc=12V, f=1kHz, RL=8, RSTX=3.3V, MUTEX=3.3V, PLIMT0=L, PLIMT1=L, fs=48kHz, MCLK=256fs, Output LC filterL=10uH, C=0.1uF 0 0 OUT2 to OUT1 OUT1 to OUT2 -20 -10 RL=4 -20 -30 Crosstalk [dB] -40 -50 -60 -40 -50 -60 -70 -70 -80 -80 -90 -90 -100 -100 0.01 0.1 1 10 10 100 Po [W] 20 100 1k 10k 100k Freq [Hz] Figure 33. Po vs. Crosstalk B.W. 20 to 20kHz AES17 RL=8 f=1kHz THD+N=1% Figure 34. Freq vs. Crosstalk 26dB 20dB R 10 5 ot Maximum Output Power [W/CH] RL=4 e N co ew m m D es en ig de ns d f Crosstalk [dB] -30 15 OUT2 to OUT1 OUT1 to OUT2 or -10 17dB N 0 8 10 12 14 16 18 20 VCC [V] Figure 35. VCC vs. Maximum Output Power www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 Figure 36. Audio Characteristics Measurement Environment 13/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV About digital audio input 1) Input digital audio signal sampling frequency (fs) explanation PWM sampling frequency, Soft-start, Soft-mute time, and the detection time of the DC voltage protection in the speaker depends on sampling frequency (fs) of the digital audio input. PWM sampling frequency (fpwm) Soft-start / Soft-mute time DC voltage protection in the speaker detection time 32kHz 256kHz 32msec. 1.02sec 44.1kHz 352.8kHz 23msec. 48kHz 384kHz 21.5msec. 0.74sec 0.68sec e N co ew m m D es en ig de ns d f 2) or Sampling frequency of the digital audio input (fs) Format of digital audio input MCLK: It is System Clock input signal. It will input LRCLK, BCLK, SDATA that synchronizes with this clock that are 256 times of sampling frequency (256fs) or 512 times of sampling frequency (512fs). LRCLK: It is L/R clock input signal. It corresponds to 32kHz/44.1kHz/48kHz with that clock(fs) which are same to the sampling frequency (fs). The data of a left channel and a right channel for one sample is input to this section BCLK: It is Bit Clock input signal. It is used for the latch of data in every one bit by sampling frequency's 64 times sampling frequency (64fs). SDATA: It is Data input signal. It is amplitude data. The data length is different according to the resolution of the input digital audio data. It corresponds to 16/ 20/ 24 bit. I2S data format Figure 37. I2S Data Format 64fs, 24bit Data N ot R 3) Figure 38. I2S Data Format 64fs, 20bit Data Figure 39. I2S Data Format 64fs, 16bit Data The Low section of LRCLK becomes Lch, the High section of LRCLK becomes Rch. After changing LRCLK, second bit becomes MSB. www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 14/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV 4) Audio Interface format and timing Recommended timing and operating conditions(MCLK, BCLK, LRCLK and SDATA) 1/ / MCLK MCLK or 1/fLRCLK e N co ew m m D es en ig de ns d f LRCLK 1/fBCLK BCLK Figure 40. Clock timing LRCLK tHD;LR tSU;LR BCLK tHD ; SD tSU ; SD SDATA R Figure 41. Audio Interface timing Parameter N ot No. Limit Symbol MCLK=256fs Min. Max. 8.192 12.288 MCLK=512fs Min. Max. 16.384 24.576 Unit 1 MCLK frequency fMCLK MHz 2 LRCLK frequency fLRCLK 32 48 32 48 kHz 3 BCLK frequency fBCLK 2.048 3.072 2.048 3.072 MHz 4 Setup time, LRCLK7 tSU;LR 20 20 ns 5 Hold time, LRCLK7 tHD;LR 20 20 ns 6 Setup time, SDATA tSU;SD 20 20 ns 7 8 9 10 Hold time, SDATA MCLK, DYTY LRCLK, DYTY BCLK, DUTY tHD;SD dMCLK dLRCLK dBCLK 20 40 40 40 60 60 60 20 40 40 40 60 60 60 ns % % % 7 This regulation is to keep rising edge of LRCK and rising edge of BCLK from overlapping. www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 15/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV Timing Chart 1) Power supply start-up sequence VCCA (31pin) VCCP1 (17, 18pin) Power up VCCA, VCCP1, VCCP2 simultaneously. REG_G REG3 FILA FILP (6pin) (7pin) (9pin) (8pin) e N co ew m m D es en ig de ns d f or VCCP2 (23, 24pin) t REG_G REG_3 FILA FILP t With Vcc>10V, waiting time unnecessary. RSTX (4pin) Set RSTX to High after power up. MCLK (32pin) SDATA(1pin) BCLK(2pin) LRCLK(3pin) t Digital audio data communication. t With Vcc>10V, there are no problem sending digital audio data at RSTX=L. MUTEX (5pin) After RSTX=LH wait more than 20msec to MUTEX=LH t N Speaker output t Soft-start 21.5msec(fs=48kHz) ot R More than 20msec Figure 42. Power supply start-up sequence www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 16/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV 2) Power supply shut-down sequence Power down VCCA, VCCP1, VCCP2, simultaneously. VCCA (31pin) VCCP1 (17, 18pin) or VCCP2 (23, 24pin) e N co ew m m D es en ig de ns d f t REG_G REG_G REG3 FILA FILP (6pin) (7pin) (9pin) (8pin) REG_3 FILA FILP RSTX (4pin) t Set RSTX to Low t After stopping speaker output, turn off the transmission of digital audio signal. MCLK (32pin) SDATA(1pin) BCLK(2pin) LRCLK(3pin) MUTEX (5pin) t With Vcc10V, there are no problem sending digital audio data even by RSTX=L Set MUTEX to Low. t Soft-mute 21.5msec(fs=48kHz) N ot R Speaker output www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 t Figure 43. Power supply shut-down sequence 17/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV 3) About changing audio signal e N co ew m m D es en ig de ns d f or The output PWM frequency of BD5452AMUV becomes the frequency of eight times of the sampling frequency fs. Therefore output PWM frequency becomes unstable when MCLK seems to become unstable at the time of channel switching at input switching and so on, too. It is possible that the LC resonance is occurred and a short protections function worked. Figure 44. Action at MCLK unstable1 If you can expect MCLK unstable period, we suggest following process. 1. Mute AUDIODATA from scalar IC.(A) 2. After muting AUDIODATA from scalar IC (B), set MUTEX=L(C). 3. After MCLK go to stable state, set MUTEX=H(D). 4. Release mute AUDIODARA from scalar IC(E). MCLK unstable period R MCLK ot AUDIODATA N MUTEX OUTX PWM stop A D B C E No matter of order D and E Figure 45. Action at MCLK unstable2 www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 18/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV About the protection function Protection function Detecting & Releasing condition PWM ERROR Output Output HiZ_Low L (Latch) (Latch) Detecting condition Detecting current = 10A (TYP.) DC voltage protection in the speaker Detecting condition At speaker output, impressed DC voltage over 0.68sec (fs=48kHz) over 3.5Vbetween (power limit off), 1.75V(power limit 10W) or 1.225V(power limit 5W) HiZ_Low (Latch) Chip temperature to be above 150 (TYP.) HiZ_Low e N co ew m m D es en ig de ns d f Detecting condition Releasing condition Detecting condition Releasing condition Detecting condition Releasing condition or Output short protection High temperature protection Under voltage protection Over voltage Protection Chip temperature to be below 120 (TYP.) Normal operation Power supply voltage to be below 8V (TYP.) HiZ_Low Power supply voltage to be above 9V (TYP.) Normal operation Power supply voltage to be above 20V(TYP.) HiZ_Low Power supply voltage to be below 19.5V(TYP.) Normal operation L (Latch) L H H No change to MCLK more than 1usec (TYP.) or Clock stop protection Detecting condition HiZ_Low no change to LRCLK more than 21usec (at fs=48kHz.). Releasing condition Normal input to MCLK, BCLK and LRCLK. H Normal operation The ERROR pin is Nch open-drain output. Once an IC is latched, the circuit is not released automatically even after an abnormal status is removed. The following procedures or is available for recovery. After turning MUTEX terminal to Low(holding time to Low = 10msec(Min.)) turn back to High again. Restore power supply after dropping to power supply voltage Vcc3V(10msec (Min.) holding) which internal power on reset circuit activates. N ot R * * no change to BCLK more than 1usec (TYP.) or www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 19/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV 1) Output short protectionShort to the power supply This IC has the PWM output short protection circuit that stops the PWM output when the PWM output is short-circuited to the power supply due to abnormality. Detecting condition - It will detect when MUTEX pin is set High and the current that flows in the PWM output pin becomes 10A(TYP.) or more. The PWM output instantaneously enters the state of HiZ-Low if detected, and IC does the latch. e N co ew m m D es en ig de ns d f or Releasing method - After turning MUTEX terminal to Low(holding time to Low = 10msec(Min.)) turn back to High again. Restore power supply after dropping to power supply voltage Vcc 3V(10msec (Min.) holding) which internal power on reset circuit activates. Short to Vcc OUT1P(14,15pin) OUT1N(11,12pin) OUT2P(26,27pin) OUT2N(29,30pin) Release from short to Vcc PWM out : IC latches with HiZ-Low. Over current t Released from latch state. 10A(TYP.) ERROR (22pin) t t sec(TYP.) Latch release t 10msec(Min.) Figure 46. Sequence of the Output short protection N ot R MUTEX(5pin) www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 20/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV 2) Output short protectionShort to GND This IC has the PWM output short protection circuit that stops the PWM output when the PWM output is short-circuited to GND due to abnormality. Detecting condition - It will detect when MUTEX pin is set High and the current that flows in the PWM output terminal becomes 10A(TYP.) or more. The PWM output instantaneously enters the state of HiZ-Low if detected, and IC does the latch. e N co ew m m D es en ig de ns d f or Releasing method - After turning MUTEX terminal to Low(holding time to Low = 10msec(Min.)) turn back to High again. Restore power supply after dropping to power supply voltage Vcc3V (10msec (Min.) holding) which internal power on reset circuit activates. Short to GND OUT1P(14,15pin) OUT1N(11,12pin) OUT2P(26,27pin) OUT2N(29,30pin) Release from short to GND Released from latch state. PWM out : IC latches with HiZ-Low. Over current t 10A(TYP.) ERROR (22pin) t R sec(TYP.) t MUTEX(5pin) N ot Latch release www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 10msec(Min.) Figure 47. Sequence of the Output short protection 21/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 t Datasheet BD5452AMUV 3) DC voltage protection in the speaker1 When the DC voltage in the speaker is impressed due to abnormality, this IC has the protection circuit where the speaker is defended from destruction. or Detecting condition - It will detect when MUTEX pin is set High and speaker output is more than 3.5V(TYP, Power Limit OFF setting), 1.75V(TYP, Power Limit 10W setting), 1.225V(TYP, Power Limit 5W setting), 0.68sec(fs=48kHz) or above. Once detected, The PWM output instantaneously enters the state of HiZ-Low, and IC does the latch. N ot R e N co ew m m D es en ig de ns d f Releasing method - After turning MUTEX terminal to Low(holding time to Low = 10msec(Min.)) turn back to High again. Restore power supply after dropping to power supply voltage Vcc3V (10msec (Min.) holding) which internal power on reset circuit activates. Power Limit OFF settings Figure 48. Sequence of DC voltage protection in the speaker1 www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 22/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV 4) DC voltage protection in the speaker2 About DC voltage protection at PWM output Duty=0% or 100% When the DC voltage in the speaker is impressed due to abnormality, this IC has the protection circuit where the speaker is defended from destruction. Detecting condition - It will detect when MUTEX pin is set High or Low and PWM output Duty=0% or 100% , 43msec(fs=48kHz) or above. Once detected, The PWM output instantaneously enters the state of HiZ-Low, and IC does the latch. N ot R e N co ew m m D es en ig de ns d f or Releasing method - After turning MUTEX terminal to Low(holding time to Low = 10msec(Min.)) turn back to High again. Restore power supply after dropping to power supply voltage Vcc3V (10msec (Min.) holding) which internal power on reset circuit activates. Figure 49. Sequence of DC voltage protection in the speaker2 www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 23/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV 5) High temperature protection This IC has the high temperature protection circuit that prevents thermal reckless driving under an abnormal state for the temperature of the chip to exceed Tjmax=150. Detecting condition - It will detect when MUTEX pin is set High and the temperature of the chip becomes 150(TYP.) or more. Speaker output turns MUTE immediately, when High temperature protection is detected. Temperature of IC chip junction() e N co ew m m D es en ig de ns d f or Releasing condition - It will release when MUTEX pin is set High and the temperature of the chip becomes 120(TYP.) or less. The speaker output is outputted through a soft-start when released. (Auto recovery) 150 120 OUT1P(14,15pin) OUT1N(11,12pin) OUT2P(26,27pin) OUT2N(29,30pin) Speaker output Hi-Z Low ot N t Soft-start 21.5msec(fs=48KHz) R ERROR (22pin) t t 3.3V Figure 50. Sequence of High temperature protection www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 24/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 t Datasheet BD5452AMUV 6) Under voltage protection This IC has the under voltage protection circuit that make speaker output mute once detecting extreme drop of the power supply voltage. Detecting condition - It will detect when MUTEX pin is set High and the power supply voltage becomes lower than 8V(TYP.).Speaker output turn MUTE immediately, when Under voltage protection is detected. Figure 51. Sequence of Under voltage protection N ot R e N co ew m m D es en ig de ns d f or Releasing condition - It will release when MUTEX pin is set High and the power supply voltage becomes more than 9V(TYP.). The speaker output is outputted through a soft-start when released. (Auto recovery) www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 25/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV 7) Over voltage protection This IC has the under voltage protection circuit that make speaker output mute once detecting extreme drop of the power supply voltage. Detecting condition - It will detect when MUTEX pin is set High and the power supply voltage becomes more than 20V(TYP.).Speaker output turn MUTE immediately, when over voltage protection is detected. e N co ew m m D es en ig de ns d f VCCA (31pin) VCCP1 (17, 18pin) VCCP2 (23, 24pin) or Releasing condition - It will release when MUTEX pin is set High and the power supply voltage becomes lower than 19.5V(TYP.). The speaker output is outputted through a soft-start when released. (Auto recovery) 20V 19.5V OUT1P(14,15pin) OUT1N(11,12pin) OUT2P(26,27pin) OUT2N(29,30pin) t HiZ-Low t Soft-start (Auto recovery) 21.5msec(fs=48kHz) Speaker Output ERROR (22pin) t Figure 52. Sequence of Over voltage protection N ot R 3.3V www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 26/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 t Datasheet BD5452AMUV 8) Clock stop protection(MCLK) This IC has the clock stop protection circuit that make the speaker output mute when the MCLK signal of the digital audio input stops. Detecting condition - It will detect when MUTEX pin is set High and the MCLK signal stops for about 1usec or more. Speaker output turn MUTE immediately, clock stop protection is detected. N ot R e N co ew m m D es en ig de ns d f or Releasing condition - It will release when MUTEX pin is set High and the MCLK signal returns to the normal clock operation. The speaker output is outputted through a soft-start when released. (Auto recovery) www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 Figure 53. Sequence of Clock stop protection(MCLK) 27/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV 9) Clock stop protection(BCLK) This IC has the clock stop protection circuit that make the speaker output mute when the BCLK signal of the digital audio input stops. Detecting condition - It will detect when MUTEX pin is set High and the BCLK signal stops for about 1usec or more. Speaker output turns MUTE immediately, when clock stop protection is detected. N ot R e N co ew m m D es en ig de ns d f or Releasing condition - It will release when MUTEX pin is set High and the BCLK signal returns to the normal clock operation. The speaker output is outputted through a soft-start when released. (Auto recovery) Figure 54. Sequence of Clock stop protection(BCLK) www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 28/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV 10) Clock stop protection(LRCLK) This IC has the clock stop protection circuit that make the speaker output mute when the LRCLK signal of the digital audio input stops. Detecting condition - It will detect when MUTEX pin is set High and the LRCLK signal stops for about 21usec(at fs=48kHz) or more. Speaker output turn MUTE immediately, when clock stop protection is detected. e N co ew m m D es en ig de ns d f or Releasing condition - It will release when MUTEX pin is set High and the LRCLK signal returns to the normal clock operation. The speaker output is outputted through a soft-start when released. (Auto recovery) Clock stop LRCLK (3pin) Clock recover t Protection start about 21sec(fs=48kHz) clock stop OUT1P(14,15pin) OUT1N(11,12pin) OUT2P(26,27pin) OUT2N(29,30pin) HiZ-Low t Soft-start (Auto recovery) 21.5msec(fs=48kHz) t ot R Speaker output ERROR (22pin) N 3.3V t Figure 55. Sequence of Clock stop protection(LRCLK) www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 29/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV 31 10 30 11 29 12 28 13 27 14 e N co ew m m D es en ig de ns d f 26 15 16 25 or Application Circuit Example1 Stereo BTL Output, RL=8, Vcc=10V to 16V 9 32 Figure 56. Application circuit1 BOM List1 Stereo BTL Output, RL=8, Vcc=10V to 16V IC Company Product No. Rated Voltage Tolerance Size U1 ROHM BD5452AMUV 5.0mmx5.0mm L11, L14, L26, L30 10H TOKO B1047AS-100M - (20%) 7.6mmx7.6mm R22 100k ROHM MCR03EZPJ104 1/10W J(5%) 1.6mmx0.8mm C17, C23, C31 10uF GRM31CB11E106KA75L 25V B(10% 3.2mmx1.6mm C6, C7 C8, C9 0.1uF GRM188B11A104KA92D 10V B(10% 1.6mmx0.8mm C11, C14, C26, C30 0.1uF GRM188B11E104KA01D 25V B(10% 1.6mmx0.8mm ot Inductor Value Parts No. R Parts Resistor N Capacitor MURATA As return of current regenerated by back EMF of output coil happens, take steps such as putting capacitor between power supply and GND as an electric pathway for the regenerated current. Be sure that there is no problem with each property such as emptied capacity at lower temperature regarding electrolytic capacitor to decide capacity value. If the connected power supply does not have sufficient current absorption capacity, regenerative current will cause the voltage on the power supply line to rise, which combined with the product and its peripheral circuitry may exceed the absolute maximum ratings. It is recommended to implement a physical safety measure such as the insertion of a voltage clamp diode between the power supply and GND pins. www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 30/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV e N co ew m m D es en ig de ns d f or Application Circuit Example 2 Monaural BTL Output, RL=8, Vcc=10V to 16V Figure 57. Application Circuit 2 BOM List2 Monaural BTL Output, RL=8, Vcc=10V to 16V IC Value Company Product No. Rated Voltage Tolerance Size U1 ROHM BD5452AMUV 5.0mmx5.0mm L11, L14 10H TOKO B1047AS-100M - (20%) 7.6mmx7.6mm R22 100k ROHM MCR03EZPJ104 1/10W J(5%) 1.6mmx0.8mm C17, C31 10uF GRM31CB11E106KA75L 25V B(10% 3.2mmx1.6mm C6, C7 C8, C9 0.1uF GRM188B11A104KA92D 10V B(10% 1.6mmx0.8mm C11, C14 0.1uF GRM188B11E104KA01D 25V B(10% 1.6mmx0.8mm Parts No. R Parts ot Inductor Resistor N Capacitor MURATA As return of current regenerated by back EMF of output coil happens, take steps such as putting capacitor between power supply and GND as an electric pathway for the regenerated current. Be sure that there is no problem with each property such as emptied capacity at lower temperature regarding electrolytic capacitor to decide capacity value. If the connected power supply does not have sufficient current absorption capacity, regenerative current will cause the voltage on the power supply line to rise, which combined with the product and its peripheral circuitry may exceed the absolute maximum ratings. It is recommended to implement a physical safety measure such as the insertion of a voltage clamp diode between the power supply and GND pins. www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 31/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV 28 13 27 14 26 15 e N co ew m m D es en ig de ns d f 25 16 or Application Circuit Example 3 Stereo BTL Output, RL=8, Vcc=16V to 18V To prevent going over absolute maximum rating by the leap out of power supply and the linking of PWM output wave form, please provide countermeasure shown below diagram (dot-line) when using at Vcc16V. 12 29 31 10 11 30 9 32 Figure 58. Application Circuit Example 3 BOM List 3 Stereo BTL Output, RL=8, Vcc=16V to 18V Parts IC Inductor Value Company ROHM Product No. BD5452AMUV Rated Tolerance Size 5.0mmx5.0mm L11, L14, L26, L30 R22 10H 100k TOKO B1047AS-100M MCR03EZPJ104 1/10W (20%) J(5%) 7.6mmx7.6mm 1.6mmx0.8mm R11, R14, R26, R30 C17, C23, C31 6.8 10uF MCR03EZPFL6R80 GRM31CB11E106KA75L 1/10W 25V F(5%) B(10% 1.6mmx0.8mm 3.2mmx1.6mm C6, C7 C8, C9 0.1uF GRM188B11A104KA92D 10V B(10% 1.6mmx0.8mm R Resistor Parts No. U1 MURATA N ot Capacitor Electrolytic Capacitor ROHM C11, C14, C26, C30 0.1uF GRM188B11A104KA01D 25V B(10% 1.6mmx0.8mm C11B, C14B, C26B, C30B 680pF GRM188B11E681KA01 25V B(10% 1.6mmx0.8mm C17B 220F ECA1EMH221 25V 20% 8mmx11.5mm Panasonic As return of current regenerated by back EMF of output coil happens, take steps such as putting capacitor between power supply and GND as an electric pathway for the regenerated current. Be sure that there is no problem with each property such as emptied capacity at lower temperature regarding electrolytic capacitor to decide capacity value. If the connected power supply does not have sufficient current absorption capacity, regenerative current will cause the voltage on the power supply line to rise, which combined with the product and its peripheral circuitry may exceed the absolute maximum ratings. It is recommended to implement a physical safety measure such as the insertion of a voltage clamp diode between the power supply and GND pins. www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 32/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV Application Circuit Example 4 Monaural BTL Output, RL=8, Vcc=16V to 18V To prevent going over absolute maximum rating by the leap out of power supply and the linking of PWM output wave form, please provide countermeasure shown below diagram (Red dot-line) when using at Vcc16V. VCC: 16V18V C17B 220F 3.3V 3.3V R22 100k 24 23 VSS 22 VSS 21 C17 10F VSS 20 18 19 17 16 26 Driver FET 2P I/F VCCP1 Output Short Protection Output DC Voltage Protection High Temperature Protection Driver FET 1P 15 e N co ew m m D es en ig de ns d f 25 CLK_MOD PLIMT1 PLIMT0 VCCP2 or ERROR 3.3V REG3 14 28 GNDP2 GNDP1 31 MCLK 32 C31 10F I2S I/F 2 1 12 Driver FET 1N x8 Over Sampling Digital Filter 3 SDATA BCLK 4 LRCLK RSTX OUT1N C14 0.1F I/F REG_G REG3 5 6 7 GNDP1 R11 6.8 C11B 880pF C11 0.1F SP 1ch (8) 10H L11 GNDA GNDA 10 30 VCCA Driver FET 2N GNDP1 11 29 PWM Modulator FILA 9 GNDP2 L14 C14B 880pF R14 6.8 13 27 Under Voltage Protection Over Voltage Protection Clock Stop Protection 10H OUT1P C9 0.1F FILP 8 MUTEX C6 C7 C8 0.1F 0.1F 0.1F Figure 59. Application Circuit Example 4 BOM List 4 Monaural BTL Output, RL=8, Vcc=16V to 18V Parts No. Value Company Product No. Rated Tolerance Size IC Inductor U1 L11, L14 10H ROHM TOKO BD5452AMUV B1047AS-100M - (20%) 5.0mmx5.0mm 7.6mmx7.6mm R22 R11, R14 100k 6.8 ROHM MCR03EZPJ104 MCR03EZPFL6R80 1/10W 1/10W J(5%) F(5%) 1.6mmx0.8mm 1.6mmx0.8mm C17, C31 10uF GRM31CB11E106KA75L 25V B(10% 3.2mmx1.6mm C6, C7 C8, C9 0.1uF GRM188B11A104KA92D 10V B(10% 1.6mmx0.8mm C11, C14 0.1uF GRM188B11A104KA01D 25V B(10% 1.6mmx0.8mm C11B, C14B 680pF GRM188B11E681KA01 25V B(10% 1.6mmx0.8mm C17B 220F ECA1EMH221 25V 20% 8mmx11.5mm ot Resistor R Parts N Capacitor Electrolytic Capacitor MURATA Panasonic As return of current regenerated by back EMF of output coil happens, take steps such as putting capacitor between power supply and GND as an electric pathway for the regenerated current. Be sure that there is no problem with each property such as emptied capacity at lower temperature regarding electrolytic capacitor to decide capacity value. If the connected power supply does not have sufficient current absorption capacity, regenerative current will cause the voltage on the power supply line to rise, which combined with the product and its peripheral circuitry may exceed the absolute maximum ratings. It is recommended to implement a physical safety measure such as the insertion of a voltage clamp diode between the power supply and GND pins. www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 33/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV About circuit board layout Be careful of the following order of priority, and design a circuit board layout. or C13C27C31(10uF) put shortest compared with VCC and GND. C6C7C8C9(0.1uF) put shortest compared with VCC and GND. The thermal pattern on the back connected with the GND. Each GND line connected by one point without common impedance. Each power supply and each GND are divided GND pattern of both side connected with the a lot of VIA electric contacts to lower the impedance of GND. GND area of the heat radiation area widen to improve the heat radiation ability. N ot R e N co ew m m D es en ig de ns d f ReferenceROHM designed 4 layer board Figure 60. ROHM designed 4layer board www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 34/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV e N co ew m m D es en ig de ns d f or ReferenceROHM designed 4 layer board SilkScreen Figure 62. Bottom Layer Silk Screen (Top View) Figure 61. Top Layer Silk Screen (Top View) ROHM designed 4 layer board Copper Layer Figure 63. Top Copper Layer (Top View) N ot R Figure 64. Mid Copper Layer1 (Top View) Figure 65. Mid Copper Layer2 (Top View) www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 Figure 66. Bottom Copper Layer (Top View) 35/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV About the two pieces use of BD5452AMUV e N co ew m m D es en ig de ns d f or Be careful of the following point, when you have two BD5452AMUVs used at the same time. It is charged with electricity to GND of LC-Filter for the SW element removal. When you have two BD5452AMUVs used at the same time and PWM output synchronized , there is common impedance in GND of Filter, the GND electric potential is raised, and it becomes the aggravation cause of the noise. The GND of Filter is to short in one point when you use two BD5452AMUVs at the same time. There is no mechanism of the phase control in BD5452AMUV. Figure 67. Output LC filter Figure 68. circuit at the time of the two use How to select an application parts 14,15 or 26,27 L C N ot R 1) Output LC Filter Circuit An output filter is required to eliminate radio-frequency components exceeding the audio-frequency region supplied to a load (speaker). Because this IC uses sampling clock frequencies from 256kHz(fs=32kHz) to 384kHz(fs=48kHz) in the output PWM signals, the high-frequency components must be appropriately removed. This section takes an example of an LC type LPF shown below, in which coil L and capacitor C compose a differential filter with an attenuation property of -12dB/oct. A large part of switching currents flow to capacitor C, and only a small part of the currents flow to speaker RL. This filter reduces unwanted emission this way. In addition, coil L and capacitor Cg compose a filter against in-phase components, reducing unwanted emission further. C 11,12 or 29,30 RL L Figure 69. Output LC filter www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 36/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV Following presents output LC filter constants with typical load impedances. RL L C 4 10H 0.47F 6 10H 0.15F 8 10H 0.1F e N co ew m m D es en ig de ns d f or Use coils with a low direct-current resistance and with a sufficient margin of allowable currents. A high direct-current resistance causes power losses. In addition, select a closed magnetic circuit type product in normal cases to prevent unwanted emission. Use capacitors with a low equivalent series resistance, and good impedance characteristics at high frequency ranges (100kHz or higher). Also, select an item with sufficient withstand voltage because flowing massive amount of high-frequency currents is expected. 2) The value of the LC filter circuit computed equation The output LC filter circuit of BD5452AMUV is as it is shown in Figure 70. The LC filter circuit of Figure 70 is thought to substitute it like Figure 71 on the occasion of the computation of the value of the LC filter circuit. Figure 70. Output LC filter 1 Figure 71. Output LC filter 2 The transfer function H(s) of the LC filter circuit of Figure 71 becomes the following. 1 2 LC H (s) = = 1 1 s2 + s+ s2 + s + 2 CR LC Q R The and Q become the followings here. 2 = 1 LC = 2fCL fCL = 1 2 LC C 1 C = R L 2 L L Q =R N ot Therefore, L and C become the followings. L= 1 2 C = RL 4fCL Q C= Q Q = R fCLRL The RL and L should be made known, and fCL is set up, and C is decided. www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 37/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV 3) The settlement of the L value of the coil A standard for selection of the L value of a coil to use is to take the following back anti-matter into consideration except for the factor such as a low castigation, miniaturization, pale pattern. It is being made L=10uH with BD5452AMUV in consideration of a balance of the total. or When L value was made small. (1) Circuit electric currents increase without a signal. And, efficiency in the low output gets bad. (2) Direct current resistance value is restrained small when the coil of other L value and size are made the same. Therefore, maximum output is easy to take out. And, it can be used in the low power supply voltage because DC electric current (allowable electric current) value can be taken greatly. e N co ew m m D es en ig de ns d f When L value was made large. (1) Circuit electric current is restrained low without a signal. Efficiency in the low output improves. (2) Direct current resistance value grows big when the coil of other L value and size are made the same. Therefore, maximum output is hard to take out. And, because it becomes small, use becomes difficult the DC electric current (allowable electric current) value in the low power supply voltage, too. 4) The settlement of the fCL As for the settlement of the fixed number of the LC filter circuit, it is taken into consideration about two points of the following, and set up. The PWM sampling frequency fPWM (=8fS) of BD5452AMUV is set up in 384kHz (@fs=48kHz). It is set up with fc < fPWM to restrain career frequency omission after the LC filter circuit. When fc is lowered too much, the voltage profit of the voice obi stage (especially, the neighborhood of 20kHz) declines in the speaker output frequency character of the difference movement mode. And, the speaker output frequency character of the difference movement mode becomes the following. L[uH] 10 R 15 RL=8 C[uF] fc[kHz] 0.1 75.32 0.15 80.85 0.22 86.79 0.33 89.92 0.47 86.79 0.1 46.99 0.15 49.66 0.22 53.46 0.33 57.54 0.47 59.7 0.1 30.76 0.15 31.92 0.22 33.73 0.33 36.31 0.47 39.08 L[uH] 10 15 22 RL=6 C[uF] fc[kHz] 0.1 51.01 0.15 54.76 0.22 56.73 0.33 63.1 0.47 66.68 0.1 33.11 0.15 34.36 0.22 35.65 0.33 38.37 0.47 41.3 0.1 22.49 0.15 22.91 0.22 23.77 0.33 24.66 0.47 26.06 Q 0.30 0.37 0.44 0.54 0.65 0.24 0.30 0.36 0.44 0.53 0.20 0.25 0.30 0.37 0.44 L[uH] 10 15 22 RL=4 C[uF] fc[kHz] 0.1 32.19 0.15 33.35 0.22 34.55 0.33 35.8 0.47 38.37 0.1 21.68 0.15 22.08 0.22 22.49 0.33 22.91 0.47 23.77 0.1 14.72 0.15 14.72 0.22 15 0.33 15.28 0.47 15.56 Q 0.20 0.24 0.30 0.36 0.43 0.16 0.20 0.24 0.30 0.35 0.13 0.17 0.20 0.24 0.29 N ot 22 Q 0.40 0.49 0.59 0.73 0.87 0.33 0.40 0.48 0.59 0.71 0.27 0.33 0.40 0.49 0.58 www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 38/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV 5) About the EMI countermeasure It can be confirmed with Chip Common Mode Choke Coil( DLY5ATN401 ) manufactured by Murata manufacturing, Chip inductor LCC3225T2R2MR manufactured by TAIYOYUDEN as a part EMI countermeasure except for the output LC filter recommended with P.30/46P.33/46. Application Circuit Example5Stereo BTL Output, RL=8, VCC=10V16V Taiyo Yuden L=2.2uH (Chip inductor) ERROR 3.3V REG3 3.3V 3.3V VCCP1: 10V16V or VCCP2: 10V16V R22 C23 10F 100k 23 22 VSS 21 C17 10F VSS 20 18 19 17 e N co ew m m D es en ig de ns d f 24 VSS Driver FET 1P 16 VCCP1 Under Voltage Protection Over Voltage Protection Clock Stop Protection High Temperature Protection 27 C26 1000pF To Control I/F Output Short Protection Output DC Voltage Protection 15 Driver FET 2P VCCA 32 MCLK 1 2 SDATA BCLK 1000pF C14 Control I/F 3 4 Driver FET 1N LRCLK RSTX REG_G REG3 6 7 5 GNDP1 C11 1000pF 12 Feedback x8 Over Sampling Digital Filter I2S I/F GNDP1 OUT1N 11 Driver FET 2N 31 VCCA: 10V16V C31 10F Feedback 30 OUT2N L30 Feedback PWM Modulator L11 GNDA GNDA 10 1000pF Feedback FILA 9 29 SP 2ch (Rch) (8) L14 13 28 GNDP2 GNDP2 C30 OUT1P 14 26 L26 25 OUT2P CLK_MOD PLIMT1 PLIMT0 VCCP2 C9 0.1F FILP 8 -con MUTEX C7 C6 C8 0.1F 0.1F 0.1F Digital Audio Source Parts R Figure 72. Application Circuit Example5 BOM list 5Stereo BTL Output, RL=8, VCC=10V16V Value Company Product No. Rated Voltage Tolerance Size U1 ROHM BD5452AMUV 5.0mmx5.0mm LCC3225T2R2MR 1.5A (20%) 3.2mmx2.5mm MCR03EZPJ104 1/10W J(5%) 1.6mmx0.8mm GRM31CB11E106KA75L 25V B(10% 3.2mmx1.6mm GRM188B11A104KA92D 10V B(10% 1.6mmx0.8mm GRM188B11H102KA01D 50V B(10% 1.6mmx0.8mm ot IC Parts No. L11, L14, L26, L30 2.2H Resistor R22 100k ROHM C17, C23, C31 10uF C6, C7 C8, C9 0.1uF C11, C14, C26, C30 1000pF N Inductor Taiyo Yuden Capacitor MURATA As return of current regenerated by back EMF of output coil happens, take steps such as putting capacitor between power supply and GND as an electric pathway for the regenerated current. Be sure that there is no problem with each property such as emptied capacity at lower temperature regarding electrolytic capacitor to decide capacity value. If the connected power supply does not have sufficient current absorption capacity, regenerative current will cause the voltage on the power supply line to rise, which combined with the product and its peripheral circuitry may exceed the absolute maximum ratings. It is recommended to implement a physical safety measure such as the insertion of a voltage clamp diode between the power supply and GND pins. www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 39/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 SP 1ch (Lch) (8) Datasheet BD5452AMUV Stereo BTL Output, RL=8 , VCC=10V 16V Application Circuit Example 6 REG3 VCCP2: 10V16V 21 22 C17 10F VSS 20 18 19 17 Driver FET 1P C14 1000pF OUT1P 32 I2S I/F 1 Control I/F 2 3 SDATA BCLK 4 LRCLK RSTX GNDP1 12 L11 11 Driver FET 1N REG_G REG3 6 7 5 1000pF GNDP1 Feedback x8 Over Sampling Digital Filter 31 MCLK Driver FET 2N 30 C31 10F Feedback VCCA Feedback PWM Modulator SP 1ch (Lch) 1000pF (8) C11 OUT1N GNDA 10 29 VCCA: 10V16V Feedback GNDA FILA C9 0.1F 9 GNDP2 OUT2N C11_2 13 28 e N co ew m m D es en ig de ns d f 27 Under Voltage Protection Over Voltage Protection Clock Stop Protection High Temperature Protection 15 VCCP1 14 26 Driver FET 2P To Control I/F Output Short Protection Output DC Voltage Protection 16 CLK_MOD PLIMT1 PLIMT0 GNDP2 L26 C30 VSS VCCP2 C26 1000pF VSS or 23 25 OUT2P SP 2ch (Rch) (8) 1000pF Murata common mode choke coil 3.3V VCCP1: 10V16V 100k 24 1000pF 3.3V R22 C23 10F C26_2 ERROR 3.3V FILP 8 -con MUTEX C6 C7 C8 0.1F 0.1F 0.1F Digital Audio Source Figure 73. Application Circuit Example6 BOM list 6Stereo BTL Output, RL=8, VCC=10V16V Parts IC Value Company Product No. Rated Voltage Tolerance Size U1 ROHM BD5452AMUV 5.0mmx5.0mm L11, L26 DC 0.024 MURATA DLY5ATN401SQ2 30V (40%) 3.6mmx5.0mm R22 100k ROHM MCR03EZPJ104 1/10W J(5%) 1.6mmx0.8mm C17, C23, C31 10uF GRM31CB11E106KA75L 25V B(10% 3.2mmx1.6mm C6, C7 C8, C9 0.1uF GRM188B11A104KA92D 10V B(10% 1.6mmx0.8mm C11, C11_2,C14, C26, C26_2,C30 1000pF GRM188B11H102KA01D 50V B(10% 1.6mmx0.8mm R Common Mode Choke Coil Parts No. ot Resistor N Capacitor MURATA As return of current regenerated by back EMF of output coil happens, take steps such as putting capacitor between power supply and GND as an electric pathway for the regenerated current. Be sure that there is no problem with each property such as emptied capacity at lower temperature regarding electrolytic capacitor to decide capacity value. If the connected power supply does not have sufficient current absorption capacity, regenerative current will cause the voltage on the power supply line to rise, which combined with the product and its peripheral circuitry may exceed the absolute maximum ratings. It is recommended to implement a physical safety measure such as the insertion of a voltage clamp diode between the power supply and GND pins. www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 40/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV Measurement data Unless otherwise specified Ta=25, Vcc=12V, f=1kHz, RL=8, RSTX=3.3V, MUTEX=3.3V, PLIMT0=L, PLIMT1=L, fs=48kHz, MCLK=256fs, Measured by ROHM designed 4 layer board. 30 10uH-OUT1 10uH-OUT2 2.2uH-OUT1 2.2uH-OUT2 DLY401-OUT1 DLY401-OUT2 Voltage Gain [dB] 24 22 20 18 16 14 12 10 e N co ew m m D es en ig de ns d f 26 Po=1W or 28 10 100 1k Freq [Hz] 10k 100k Figure 74. Frequency response 0 -20 R NoiseFFT [dBV] -40 10uH-OUT1 10uH-OUT2 2.2uH-OUT1 2.2uH-OUT2 DLY401-OUT1 DLY401_OUT2 No signal -60 ot -80 N -100 -120 -140 10 100 1k Freq [Hz] 10k 100k Figure 75. No input signal, test output noise (FFT) www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 41/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV Measurement data Unless otherwise specified Ta=25, Vcc=12V, f=1kHz, RL=8, RSTX=3.3V, MUTEX=3.3V, PLIMT0=L, PLIMT1=L, fs=48kHz, MCLK=256fs, Output LC filterL=10uH, C=0.1uFMeasured by ROHM designed 4 layer board. 100 10uH-OUT1 10uH-OUT2 2.2uH-OUT1 2.2uH-OUT2 DLY401-OUT1 DLY401-OUT2 or e N co ew m m D es en ig de ns d f THD+N [%] 10 =1Hz BW=2020kHz AES17 1 0.1 THD+N =1% 8.5W THD+N=10% 11.0W 0.01 0.01 0.1 1 10 Po [W/CH] Figure 76. THD+N - OUTPUT POWER 100 Po=1W BW=2020kHz AES17 1 N ot THD+N [%] R 10 10uH-OUT1 10uH-OUT2 2.2uH-OUT1 2.2uH-OUT2 DLY401-OUT1 DLY401-OUT2 0.1 0.01 10 100 1k Freq [Hz] 10k 100k Figure 77. THD+N - Frequency www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 42/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV Measurement data Unless otherwise specified Ta=25, Vcc=12V, f=1kHz, RL=8, RSTX=3.3V, MUTEX=3.3V, PLIMT0=L, PLIMT1=L, fs=48kHz, MCLK=256fs, Output LC filterL=10uH, C=0.1uFMeasured by ROHM designed 4 layer board. 10uH-OUT2 to OUT1 10uH-OUT1 to OUT2 2.2uH-OUT2 to OUT1 2.2uH-OUT1 to OUT2 DLY401-OUT2 to OUT1 DLY401-OUT1 to OUT2 -10 -20 e N co ew m m D es en ig de ns d f Crosstalk [dB] -30 Po=1W BW=2020kHz AES17 or 0 -40 -50 -60 -70 -80 -90 -100 10 100 1k Freq [Hz] 10k 100k N ot R Figure 78. Crosstalk - Frequency www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 43/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV 6) The settlement of the snubber Lp = 1 (2f 1 )2 C p or Measure the spike resonance frequency f1 of the PWM output wave shape (When it stands up.) by using FET probe in the OUT terminal. (Figure 80) The FET probe is to monitor very near pin and shorten ground lead at the time of that. Measure resonance frequency f2 of the spike as a snubber circuit fixed number R=0Only with the condenser C, to connect GND At this time, the value of the condenser C is adjusted until it becomes half of the frequency (2f2=f1) of the resonance frequency f1 of . The value of C which it could get here is three times of the parasitic capacity Cp that a spike is formed. (C=3Cp) Parasitic inductance Lp is looked for at the next formula. e N co ew m m D es en ig de ns d f The character impedance Z of resonance is looked for from the parasitic capacity Cp and the parasitism inductance Lp at the next formula. Z= Lp Cp A snubber circuit fixed number R is set up in the value which is the same as the character impedance Z. A snubber circuit fixed number C is set up in the value of 4-10 times of the parasitic capacity Cp. (C=4Cp 10Cp) Decide it with trade-off with the character because switching electric currents increase when the value of C is enlarged too much. spike resonance frequency 5nsec/div Figure 79. PWM Output waveform measure of spike resonance frequency N ot R Figure 80. snubber schematic www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 44/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV Power Dissipation 5 PCB 4.56W VQFN032V5050 4.5 3.5 or 4 PCB 3.26W Pd [W] e N co ew m m D es en ig de ns d f 3 2.5 2 1.5 1 0.5 0 0 25 50 75 100 125 150 Ta [] Figure 81. Allowable Power Dissipation Measuring instrumentTH-156Shibukawa Kuwano Electrical Instruments Co., Ltd. Measuring conditionsInstallation on ROHM's board Board size74.2mmx74.2mmx1.6mmwith thermal via on board MaterialFR4 The board on exposed heat sink on the back of package are connected by soldering. R PCB4- layer board (Top and bottom layer back copper foil size: 20.2mm2, 2nd and 3rd layer back copper foil size: 5505mm2) , ja = 36.48/W PCB4-layer boardback copper foil size: 5505mm2, ja = 26.08/W N ot Use a thermal design that allows for a sufficient margin in light of the power dissipation (Pd) in actual operating conditions. This IC exposes its frame of the backside of package. Note that this part is assumed to use after providing heat dissipation treatment to improve heat dissipation efficiency. Try to occupy as wide as possible with heat dissipation pattern not only on the board surface but also the backside. Class D speaker amplifier is high efficiency and low heat generation by comparison with conventional Analog power amplifier. However, In case it is operated continuously by maximum output power, Power dissipation (Pdiss) may exceed package dissipation. Please consider about heat design that Power dissipation (Pdiss) does not exceed Package dissipation (Pd) in average power (Poav).Tjmax Maximum junction temperature=150, Ta Peripheral temperature[], ja Thermal resistance of package[/W], PoavAverage power[W], Efficiency Package dissipation : PdW=Tjmax - Taja Power dissipation : PdissW = Poav x1- 1 www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 45/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV Pin function explanation (Provided pin voltages are typ. Values) (1/2) Pin voltage 0V Pin explanation Reset pin for Digital circuit H: Reset OFF L: Reset ON 5 MUTEX 0V Speaker output mute control pin H: Mute OFF L: Mute ON 1 2 3 32 19 20 SDATA BCLK LRCLK MCLK PLIMT0 PLIMT1 21 CLK_MOD 10 GNDA 0V 8 FILP 1.6 to 2.4V Internal equivalence circuit or Pin name RSTX e N co ew m m D es en ig de ns d f Pin No. 4 Digital audio signal input pin Power limit setting terminal MCLK setting terminal GND pin for Analog signal Bias pin for PWM signal REG3 ot 7 R Please connect the capacitor. N 22 ERROR 3.3V Internal power supply pin for Digital circuit Please connect the capacitor. Error flag pin Please connect pull-up resister. H: While Normal L: While Error 6 REG_G 5.0V Internal power supply pin for Gate driver Please connect the capacitor. www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 46/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV Pin function explanation (Provided pin voltages are typ. Values) (2/2) Pin No. 9 Pin name FILA Pin voltage 2.5V Pin explanation Bias pin for PWM signal. Internal equivalence circuit VCCA Vcc Power supply pin for Analog signal 23,24 VCCP2 Vcc Power supply pin for ch2 PWM signal e N co ew m m D es en ig de ns d f 31 or Please connect the capacitor. Please connect the capacitor. 26,27 OUT2P Vcc to 0V Output pin of ch2 positive PWM Please connect to Output LPF. GND pin for ch2 PWM signal 25,28 GNDP2 0V 29,30 OUT2N Vcc to 0V Output pin of ch2 negative PWM Please connect to Output LPF. 11,12 OUT1N Vcc to 0V Output pin of ch1 negative PWM Please connect to Output LPF. GND pin for ch1 PWM signal 13,16 GNDP1 0V 14,15 OUT1P Vcc to 0V Output pin of ch1 positive PWM Power supply pin for ch1 PWM signal VCCP1 Please connect the capacitor. ot 17,18 R Please connect to Output LPF. Terminal setting N 1) RSTX pin, MUTEX pin function RSTX MUTEX L L/H H L H H Normalcy PWM output ERROR OUT1P, 1N, 2P, 2N output HiZ_L H (Reset_mode) HiZ_L H (MUTE_ON) Normal Operation H (MUTE_OFF) Error detecting PWM output ERROR OUT1P, 1N, 2P, 2N output HiZ_L H (Reset_mode) HiZ_L L (MUTE_ON) HiZ_L L (MUTE_ON) RSTX(4pin)terminal, MUTEX(5pin)terminal are internally pulled down by 50 k(Typ.) With RSTX=L data of every register within IC (I2S / I/F part, x8 over sampling digital filter part, latch circuit when detecting ERROR) becomes unnecessary. www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 47/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV 2) CLK_MOD pin function CLK_MOD MCLK input L H 256fs 512fs Because care for the POP sound isn't being done, Make it MUTE condition, and change CLK_MOD terminal logic when you change the mode during the movement. or 3) PLIMT pin function PLIMT0 Gain Setting(BTL) Condition of power limit L L L H 26dB 20dB off Min. 10 W(at 8) 17dB Min. 5 W(at 8) e N co ew m m D es en ig de ns d f PLIMT1 H H L H Don't use this condition. Because care for the POP sound isn't being done, Make it MUTE condition, and change CLK_MOD terminal logic when you change the mode during the movement. And, PowerLimit function of BD5452AMUV is decided as follows. Set it up corresponding to the used speaker because maximum output value varies according to the speaker load resistance value as mentioned in the mention in the following. rDS rDC N OFF Cg ON Cg C Figure.75 Schematic of output equivalent V O _ SP = V O _ DSP x 10 PO (THD=1%) = OFF rDC RL rDS ot ON VCC R VCC VIN 10 20 G BTL 20 x 2 (rDS RL + rDC ) + R L GBTL RL x 10 20 x r r R ( + ) + 2 DS DC L RL www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 2 48/51 VIN I2S Input level [dBFS] GBTL Gain Setting [dB] RL Load resistance [] rDS Resistance of FET [] TYP.=0.3 rDC DC resistance of Coil [] TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV Notes for use N ot R e N co ew m m D es en ig de ns d f or 1 ) Absolute maximum ratings Use of the IC in excess of absolute maximum ratings such as the applied voltage or operating temperature range may result in IC damage. Assumptions should not be made regarding the state of the IC (short mode or open mode) when such damage is suffered. A physical safety measure such as a fuse should be implemented when use of the IC in a special mode where the absolute maximum ratings may be exceeded is anticipated. 2 ) Power supply lines As return of current regenerated by back EMF of output coil happens, take steps such as putting capacitor between power supply and GND as an electric pathway for the regenerated current. Be sure that there is no problem with each property such as emptied capacity at lower temperature regarding electrolytic capacitor to decide capacity value. If the connected power supply does not have sufficient current absorption capacity, regenerative current will cause the voltage on the power supply line to rise, which combined with the product and its peripheral circuitry may exceed the absolute maximum ratings. It is recommended to implement a physical safety measure such as the insertion of a voltage clamp diode between the power supply and GND pins. 3 ) GND potentialPin 10, 13, 16, 25, 28. Any state must become the lowest voltage about GND terminal and VSS terminal. 4 ) Input terminal The parasitic elements are formed in the IC because of the voltage relation. The parasitic element operating causes the wrong operation and destruction. Therefore, please be careful so as not to operate the parasitic elements by impressing to input terminals lower voltage than GND and VSS. Please do not apply the voltage to the input terminal when the power-supply voltage is not impressed. 5 ) Actions in strong magnetic field Use caution when using the IC in the presence of a strong magnetic field as doing so may cause the IC to malfunction. 6 ) Thermal shutdown circuit This product is provided with a built-in thermal shutdown circuit. When the thermal shutdown circuit operates, the output transistors are placed under open status. The thermal shutdown circuit is primarily intended to shut down the IC avoiding thermal runaway under abnormal conditions with a chip temperature exceeding Tjmax = 150. 7 ) Shorts between pins and miss installation When mounting the IC on a board, pay adequate attention to orientation and placement discrepancies of the IC. If it is missing installed and the power is turned on, the IC may be damaged. It also may be damaged if it is shorted by a foreign substance coming between pins of the IC or between a pin and a power supply or a pin and a GND. 8 ) Power supply on/off Pin 17, 18, 23, 24, 31 In case power supply is started up, RSTXPin 4and MUTEX(Pin 5) always should be set Low. And in case power supply is shut down, it should be set Low likewise. Then it is possible to eliminate pop noise when power supply is turned on/off. And also, all power supply terminals should start up and shut down together. 9 ) ERROR terminalPin 22 An error flag is outputted when Output short protection and DC voltage protection in the speaker are operated. These flags are the function which the condition of this product is shown in. 10) Precautions for Speaker-setting If the impedance characteristics of the speakers at high-frequency range while increase rapidly, the IC might not have stable-operation in the resonance frequency range of the LC-filter. Therefore, consider adding damping-circuit, etc., depending on the impedance of the speaker 11) About short to VCC or GND after the LC filter Though this IC has a short protection function, when short to VCC or GND after the LC filter a short protection function operate by over-electric current. But, Be fully careful because over/undershoot which exceeds a maximum standard by back electromotive force of the coil absolutely occurs and sometimes reaches it for the destruction. 12) About REG terminals The REG terminal of BD5452AMUV doesn't aim at supplying it to the outside. Therefore, don't connect the one except for Pullup of the condenser for the stabilization and the ERROR terminal. Status of this document The Japanese version of this document is formal specification. A customer may use this translation version only for a reference to help reading the formal version. If there are any differences in translation version of this document formal version takes priority www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 49/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV Ordering Information D 5 4 5 M A 2 U V E2 Package MUV: VQFN032V5050 Part Number Packaging and forming specification E2: Embossed tape and reel or B e N co ew m m D es en ig de ns d f Physical Dimension Tape and Reel Information VQFN032V5050 <Tape and Reel information> 5.0 0.1 5.00.1 1.0MAX 3.40.1 0.4 0.1 1 8 9 32 16 25 24 0.75 0.5 2500pcs E2 The direction is the 1pin of product is at the upper left when you hold ) (0.22) ( reel on the left hand and you pull out the tape on the right hand 3.4 0.1 +0.03 0.02 -0.02 S C0.2 Embossed carrier tape Quantity Direction of feed 1PIN MARK 0.08 S Tape 17 +0.05 0.25 -0.04 1pin (Unit : mm) Reel Direction of feed Order quantity needs to be multiple of the minimum quantity. Marking Diagram(s)(TOP VIEW) VQFN032V5050(TOP VIEW) Part Number Marking LOT Number 1PIN MARK N ot R D 5 4 5 2 A www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 50/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet BD5452AMUV Revision History Revision 04.Oct.2012 001 Changes New Release N ot R e N co ew m m D es en ig de ns d f or Date www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 51/51 TSZ02201-0V1V0E954520-1-2 04.Oct.2012 Rev.001 Datasheet Notice Precaution on using ROHM Products Our Products are designed and manufactured for application in ordinary electronic equipments (such as AV equipment, OA equipment, telecommunication equipment, home electronic appliances, amusement equipment, etc.). If you (Note 1) , transport intend to use our Products in devices requiring extremely high reliability (such as medical equipment equipment, traffic equipment, aircraft/spacecraft, nuclear power controllers, fuel controllers, car equipment including car accessories, safety devices, etc.) and whose malfunction or failure may cause loss of human life, bodily injury or serious damage to property ("Specific Applications"), please consult with the ROHM sales representative in advance. Unless otherwise agreed in writing by ROHM in advance, ROHM shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of any ROHM's Products for Specific Applications. or 1. ROHM designs and manufactures its Products subject to strict quality control system. However, semiconductor products can fail or malfunction at a certain rate. Please be sure to implement, at your own responsibilities, adequate safety measures including but not limited to fail-safe design against the physical injury, damage to any property, which a failure or malfunction of our Products may cause. The following are examples of safety measures: [a] Installation of protection circuits or other protective devices to improve system safety [b] Installation of redundant circuits to reduce the impact of single or multiple circuit failure 3. Our Products are designed and manufactured for use under standard conditions and not under any special or extraordinary environments or conditions, as exemplified below. Accordingly, ROHM shall not be in any way responsible or liable for any damages, expenses or losses arising from the use of any ROHM's Products under any special or extraordinary environments or conditions. If you intend to use our Products under any special or extraordinary environments or conditions (as exemplified below), your independent verification and confirmation of product performance, reliability, etc, prior to use, must be necessary: [a] Use of our Products in any types of liquid, including water, oils, chemicals, and organic solvents [b] Use of our Products outdoors or in places where the Products are exposed to direct sunlight or dust [c] Use of our Products in places where the Products are exposed to sea wind or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2 [d] Use of our Products in places where the Products are exposed to static electricity or electromagnetic waves [e] Use of our Products in proximity to heat-producing components, plastic cords, or other flammable items [f] Sealing or coating our Products with resin or other coating materials [g] Use of our Products without cleaning residue of flux (even if you use no-clean type fluxes, cleaning residue of flux is recommended); or Washing our Products by using water or water-soluble cleaning agents for cleaning residue after soldering [h] Use of the Products in places subject to dew condensation 4. The Products are not subject to radiation-proof design. 5. Please verify and confirm characteristics of the final or mounted products in using the Products. 6. In particular, if a transient load (a large amount of load applied in a short period of time, such as pulse. is applied, confirmation of performance characteristics after on-board mounting is strongly recommended. Avoid applying power exceeding normal rated power; exceeding the power rating under steady-state loading condition may negatively affect product performance and reliability. 7. De-rate Power Dissipation (Pd) depending on Ambient temperature (Ta). When used in sealed area, confirm the actual ambient temperature. 8. Confirm that operation temperature is within the specified range described in the product specification. 9. ROHM shall not be in any way responsible or liable for failure induced under deviant condition from what is defined in this document. ot R 2. N e N co ew m m D es en ig de ns d f (Note1) Medical Equipment Classification of the Specific Applications JAPAN USA EU CHINA CLASS CLASSb CLASS CLASS CLASS CLASS Precaution for Mounting / Circuit board design 1. When a highly active halogenous (chlorine, bromine, etc.) flux is used, the residue of flux may negatively affect product performance and reliability. 2. In principle, the reflow soldering method must be used; if flow soldering method is preferred, please consult with the ROHM representative in advance. For details, please refer to ROHM Mounting specification Notice - GE (c) 2014 ROHM Co., Ltd. All rights reserved. Rev.002 Datasheet Precautions Regarding Application Examples and External Circuits If change is made to the constant of an external circuit, please allow a sufficient margin considering variations of the characteristics of the Products and external components, including transient characteristics, as well as static characteristics. 2. You agree that application notes, reference designs, and associated data and information contained in this document are presented only as guidance for Products use. Therefore, in case you use such information, you are solely responsible for it and you must exercise your own independent verification and judgment in the use of such information contained in this document. ROHM shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of such information. Precaution for Electrostatic or 1. e N co ew m m D es en ig de ns d f This Product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. Please take proper caution in your manufacturing process and storage so that voltage exceeding the Products maximum rating will not be applied to Products. Please take special care under dry condition (e.g. Grounding of human body / equipment / solder iron, isolation from charged objects, setting of Ionizer, friction prevention and temperature / humidity control). Precaution for Storage / Transportation 1. Product performance and soldered connections may deteriorate if the Products are stored in the places where: [a] the Products are exposed to sea winds or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2 [b] the temperature or humidity exceeds those recommended by ROHM [c] the Products are exposed to direct sunshine or condensation [d] the Products are exposed to high Electrostatic 2. Even under ROHM recommended storage condition, solderability of products out of recommended storage time period may be degraded. It is strongly recommended to confirm solderability before using Products of which storage time is exceeding the recommended storage time period. 3. Store / transport cartons in the correct direction, which is indicated on a carton with a symbol. Otherwise bent leads may occur due to excessive stress applied when dropping of a carton. 4. Use Products within the specified time after opening a humidity barrier bag. Baking is required before using Products of which storage time is exceeding the recommended storage time period. Precaution for Product Label QR code printed on ROHM Products label is for ROHM's internal use only. Precaution for Disposition When disposing Products please dispose them properly using an authorized industry waste company. Precaution for Foreign Exchange and Foreign Trade act Since our Products might fall under controlled goods prescribed by the applicable foreign exchange and foreign trade act, please consult with ROHM representative in case of export. All information and data including but not limited to application example contained in this document is for reference only. ROHM does not warrant that foregoing information or data will not infringe any intellectual property rights or any other rights of any third party regarding such information or data. ROHM shall not be in any way responsible or liable for infringement of any intellectual property rights or other damages arising from use of such information or data.: ot 1. R Precaution Regarding Intellectual Property Rights N 2. No license, expressly or implied, is granted hereby under any intellectual property rights or other rights of ROHM or any third parties with respect to the information contained in this document. Other Precaution 1. This document may not be reprinted or reproduced, in whole or in part, without prior written consent of ROHM. 2. The Products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written consent of ROHM. 3. In no event shall you use in any way whatsoever the Products and the related technical information contained in the Products or this document for any military purposes, including but not limited to, the development of mass-destruction weapons. 4. The proper names of companies or products described in this document are trademarks or registered trademarks of ROHM, its affiliated companies or third parties. Notice - GE (c) 2014 ROHM Co., Ltd. All rights reserved. Rev.002 Datasheet General Precaution 1. Before you use our Pro ducts, you are requested to care fully read this document and fully understand its contents. ROHM shall n ot be in an y way responsible or liabl e for fa ilure, malfunction or acci dent arising from the use of a ny ROHM's Products against warning, caution or note contained in this document. 2. All information contained in this docume nt is current as of the issuing date and subj ect to change without any prior notice. Before purchasing or using ROHM's Products, please confirm the la test information with a ROHM sale s representative. The information contained in this doc ument is provi ded on an "as is" basis and ROHM does not warrant that all information contained in this document is accurate an d/or error-free. ROHM shall not be in an y way responsible or liable for an y damages, expenses or losses incurred b y you or third parties resulting from inaccur acy or errors of or concerning such information. N ot R e N co ew m m D es en ig de ns d f or 3. Notice - WE (c) 2014 ROHM Co., Ltd. All rights reserved. Rev.001