UNISONIC TECHNOLOGIES CO., LTD TA8207K LINEAR INTEGRATED CIRCUIT LOW FREQUENCY POWER AMPLIFIER DESCRIPTION The UTC TA8207K is an audio power IC with built-in two channels and thermal shut down protection circuit. The IC is developed for portable radio cassette tape recorder with power ON/OFF switch. FEATURES FSIP-12H *High Power : POUT=2.5W / CH (Typ.) (VCC=9V, RL=4, f=1KHz, THD=10%) : POUT=4.6W / CH (Typ.) (VCC=12V, RL=4, f=1KHz, THD=10%) *Low Popping Noise at Power ON *Small Quiescent Current: ICCQ=21mA (Typ.) (VCC=9V, VIN=0) *Soft Clip *Built-in Thermal Shut Down Protection Circuit *Bast for Supply Voltage 9V, 12V *Operation Supply Voltage Range: VCC=6-15V *Pb-free plating product number: TA8207KL ORDERING INFORMATION Order Number Normal Lead Free Plating TA8207K-F12-T TA8207KL-F12-T Package Packing FSIP-12H Tube TA8207KL-F12-T (1)Packing Type (1) T: Tube (2)Package Type (3)Lead Plating (2) F12: FSIP-12H (3) L: Lead Free Plating, Blank: Pb/Sn www.unisonic.com.tw Copyright (c) 2005 Unisonic Technologies Co., Ltd 1 of 9 QW-R107-013,C TA8207K LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS (Ta=25C) PARAMETER Supply Voltage Output Current (Peak / CH) Power Dissipation Operating Temperature Storage Temperature SYMBOL VCC IO(PEAK) PD TOPR TSTG VALUE 20 2.5 12.5 -20 to + 75 -55 to + 150 UNIT V A W C C ELECTRICAL CHARACTERISTICS (VCC=9V, RL=4, Rg=600, f=1kHz, Ta=25C, unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS Quiescent Current ICCQ VIN=0 POUT(1) THD=10% Output Power POUT(2) VCC=12V,THD=10% Total Harmonic Distortion THD POUT=0.4W / ch Rg=10k Output Noise Voltage eN BW=20Hz ~ 20kHz Input Resistance RIN Rf=120 GV(1) VOUT=0.775Vrms Voltage Gain GV(2) Rf=0, VOUT=0.775Vrms Rg=600 Ripple Rejection Ratio RR Fripple=100Hz Rg=600, Amp1<->2 Cross Talk CT VOUT=0dBm, f=1kHz Input Offset Voltage V6,V7 Stand-by Current ISTDBY SW1->OFF MIN 2.0 TYP 21 2.5 4.6 0.2 MAX 45 1.0 UNIT mA W W % 0.3 1.0 mVrms 30 43 45 k 47 dB 56.5 dB 52 dB 50 dB 30 1 60 mV A 10 4.5 11 8.7 12 VCC TYPICAL DC VOLTAGE OF EACH TERMINAL (VCC=9V, Ta=25C) TERMINAL NO. DC Voltage 1 8.7 2 4.5 3 VCC 4 5.0 5 0.7 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 0.03 7 0.03 8 0.7 9 GND 2 of 9 QW-R107-013,C TA8207K LINEAR INTEGRATED CIRCUIT TEST CIRCUIT VCC1 - C11 100F + + - *2 SW1 VCC2 3 + - 6 + R11 120 45 5 + ch - 1 C4 100F 2 C6 0.15F 30k RIPPLE C8 1000F + - OUT - 1 - + RL BIAS CIRCUIT THE RMAL SHUT DOWN PROTECTION CIRCUIT - *1 CIN IN2 45 8 + R12 120 C9 1000F + - + ch - 2 10 C5 100F 11 B.S.2 - OUT - 2 - + - 7 + C3 47F NF2 - C2 47F B.S.1 NF1 4 IN - 2 1 - *1 CIN C1 100F 12 + IN - 1 IN1 C10 1000F C7 0.15F RL 30k 9 GND REMARK: 1.This IC can be used without coupling capacitor (CIN). If volume slide noise occurred by input offset voltage is undesirable, it needs to use the capacitor (CIN). 2.The condenser between the pin3 and the GND (C11) is for reducing pop noise when the power ON/OFF switch (SW1) is set to ON/OFF. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 9 QW-R107-013,C TA8207K LINEAR INTEGRATED CIRCUIT APPLICATION INFORMATION 1. ADJUSTMENT OF VOLTAGE GAIN The voltage gain GV is obtained as follows by R1,R2 and Rf in Fig.1. INPUT 6/7 5/8 - CNF + 47 F Rf OUTPUT + R1 45 AMP 2/10 R2 30k Rf+R1+R2 Gv=20og Rf+R1 When Rf=0 Gv=56.5dB(typ.) When Rf=120 Gv=45dB(typ.) Reduction of Gv is possible by increasing Rf. However, it is recommended to use this at 40dB or over since the feedback increase is liable to produce oscillation. 2. THERMAL SHUTDOWN CIRCUIT The built-in thermal shut-down circuit can prevent the destruction of IC that abnormal temperature rise when the heat radiation is insufficient. The operation temperature is set at radiation fin temperature 175, at this temperature or over the bias is interrupted to prevent the destruction of IC. 3. INPUT STAGE Below circuit shows the input circuit of this IC. OUTPUT Q2 INPUT GND to BIAS NF 5/8 - + Rf 9 Q1 47F 6/7 C IN 45 + 2/10 to DRIVER 30K - 30K Q3 It is possible that without input coupling capacitor in the input circuit by use a PNP Transistor,Q1. However, 60mV max offset voltage is produced at pin (6) and (7). Application after checking volume slide noise is recommended. In order to cut the volume slide noise, insert the input capacitor(CIN) in series to interrupt the DC component. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 9 QW-R107-013,C TA8207K LINEAR INTEGRATED CIRCUIT APPLICATION INFORMATION(Cont.) 4. OSCILLATION PREVENTIVE MEASURES For oscillation preventive capacitor C6 and C7 between the output terminal and GND, polyester film capacitor is recommended due to good characteristics for temperature and for high frequency. it is better that use this capacitor after the temperature test to check the oscillation allowance due to the characteristics of the capacitor is liable to be influenced by the temperature.Besides, as the position of the electrolytic capacitor has remarkable influence on the oscillation, connect C10 to VCC as close power GND as possible. At using this application with the voltage gain reduced, oscillation is liable to be produced. Apply the capacitor after checking enough for its capacity, type and mounting position. 5. POWER ON/OFF SWITCH There is power on/off switch at (3) pin. However, output power is changed by (3) pin supply voltage when(3) pin supply voltage I not same(12) pin supply voltage, after referring to attached date, select(3) pin supply voltage. 6. INPUT VOLTAGE When the excessive signal is input, turning-up is produced in the clip waveform. The turning-up point is VIN=300mVrms (typ.): VCC=9V, RL=4, f=1kHz: Enough care must be taken for this phenomenon. 7. GND LINE GND pin is not separated for pre-GND and for PW-GND. That is liable to cause distortion and cross talk worse. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 9 QW-R107-013,C TA8207K LINEAR INTEGRATED CIRCUIT TYPICAL CHARACTERISTICS ICCQ,V2,V10-VCC RL=4 VIN=0 Ta=25 12 60 10 8 40 6 4 20 2 60 50 40 30 20 10 0 0 Vcc=9V RL=4 RNF=120 Ta=25 70 Voltage Gain, GV (dB) Quiescent Current, ICCQ (mA) Gv-f 80 80 4 8 12 16 0 20 30 100 1K 3K Frequency, f (Hz) Supply Voltage, Vcc (V) THD - POUT 10 5 THD - P OUT 30 VCC=9V RL=4 RNF=120 Ta=25 Total Harmoic Distortion, THD (%) Total Harmoic Distortion, THD (%) 30 3 f=10kHz 1 100Hz 0.5 0.3 0.1 0.01 1kHz 0.03 0.1 0.3 1 3 10 5 VCC=12V RL =4 RNF=120 Ta=25 3 f=10kHz 1 0.5 100Hz 0.3 1kHz 0.1 10 0.01 0.03 Output Power, POUT (W) THD - POUT 5 3 RL =4 f=1kHz RNF=120 Ta=25 VCC=6V 9 12 1 0.5 0.3 0.1 0.01 0.03 0.3 1 0.1 Output Power, POUT (W) 3 10 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 0.3 0.1 1 Output Power, POUT (W) 3 10 R.R.-f 0 Ripple Rejection Ration, R.R.(d B) Total Harmoic Distortion, THD (%) 30 10 10K 30K 100K Vcc=9V RL =4 RNF=120 Rg=620 -10 -20 -30 -40 -50 -60 -70 -80 30 100 1K 3K 300 Frequency, f (Hz) 10K 30K 6 of 9 QW-R107-013,C TA8207K LINEAR INTEGRATED CIRCUIT TYPICAL CHARACTERISTICS (Cont.) R.R. - Rg Vcc=9V RL=4 f=1KHz RNF=120 Ta=25 -10 -20 -30 Vcc=9V RL =4 Rg=620 RNF=120 -10 -40 -50 -60 -70 -80 C.T. - f 0 Cross Talk C.T. (d B) Ripple Rejection Ratio R.R.(d B) 0 -20 -30 -40 -50 -60 -70 30 100 300 1K 3K -80 10K 30K 100K 30 100 300 Signal Source Resistance, Rg () C.T. - Rg 0 -30 Output Noise Voltage, eN (mVrms) -20 -40 -50 -60 -70 -80 30 100 300 1K 3K 1.4 1.2 1.0 0.4 0.2 6 6 V2,V10 4 2 2 0 0 14 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw Total Harmoic Distortion THD (%) 8 Output Voltage V2,V10 (V) 10 8 10 12 4 8 Supply Voltage, Vcc2 (V) 1K 3K 10K 30K 100K THD - POUT ICCQ2 2 100 300 30 12 0 30 Signal Source Resistance , Rg () ICCQ2,V2,V10-VCC2 4 eN - Rg Vcc=9V RL =4 RNF=120 BW=20~20kHz Ta=25 0.6 0 10K 30K 100K 12 10 10K 30K 100K 0.8 Signal Source Resistance , Rg () Quiescent Current, ICCQ2 (mA) Cross Talk C.T. (d B) 1.6 Vcc=9V RL=4 f=1KHz RNF=120 Ta=25 -10 1K 3K Frequency, f (Hz) 10 5 3 VCC1=9V RL =4 f=1kHz RNF=120 Ta=25 V CC2 =5V 1 6 7 8 9 0.5 0.3 0.1 0.01 0.03 0.1 0.3 1 3 10 Output Power, POUT (W) 7 of 9 QW-R107-013,C TA8207K LINEAR INTEGRATED CIRCUIT TYPICAL CHARACTERISTICS (Cont.) ICCQ,V2,V10 - Ta 0.4 0.3 0.2 0.1 0 -40 0 -20 40 20 60 40 30 4 20 ICCQ 10 (2) 8 6 4 (4) 0 20 40 60 80 3 9 2 1 0 100 120 140 160 180 0 1 4 3 5 2 Output Voltage, POUT (W) ICCQ2,V2,V10-VCC2 6 6 V2,V10 4 2 2 0 8 10 12 4 Supply Voltage, Vcc2 (V) 14 0 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw Total Harmoic Distortion, THD(%) 8 Output Voltage, V2,V10 (V) Quiescent Current, ICCQ2 (mA) 10 8 2 7 THD - POUT ICCQ2 0 6 30 12 12 4 0 4 Ambient Temperature, Ta () 10 80 RL=4 f=1kHz VCC=12V 5 (3) 2 60 PD - POUT (1) INFNITE HEAT SINK (2) 80cm2 x 2mm AL HEAT SINK (3) 18cm2 x 2mm AL HEAT SINK (4) NO HEAT SINK 10 40 Ambient Temperature, Ta() Power Dissipation, PD (W) Allowable Power Dissipation, PD (W) (1) 2 20 PD -Ta 12 0 0 -20 Ambient Temperature, Ta() 14 6 V2,V10 0 -40 100 80 VCC=9V 10 RL =4 VIN=0 8 50 Output Voltage V2,V10 (V) VCC=9V RL=4 POUT=0.4W f=1KHz 0.5 Quiescent Current, ICCQ (mA) Total Harmonic Distortion, THD (%) THD - Ta 10 5 3 VCC1 =9V RL=4 f=1kHz RNF=120 Ta=25 VCC2=5V 1 6 7 8 9 0.5 0.3 0.1 0.01 0.03 0.1 0.3 1 3 10 Output Power, POUT (W) 8 of 9 QW-R107-013,C TA8207K LINEAR INTEGRATED CIRCUIT TYPICAL CHARACTERISTICS (Cont.) VCC=9V RL=4 POUT=0.4W f=1KHz 0.5 0.4 0.3 0.2 0.1 0 -40 0 -20 20 40 60 80 VCC=9V RL=4 10 VIN=0 8 50 40 30 6 V2,V10 4 20 ICCQ 10 0 -40 100 -20 Ambient Temperature, Ta() 10 (2) 8 6 (1) INFNITE HEAT SINK (2) 80cm2 x 2mm AL HEAT SINK (3) 18cm2 x 2mm AL HEAT SINK (4) NO HEAT SINK (3) 4 (4) 2 0 20 40 60 80 100 120 140 160 180 Ambient Temperature, Ta () 40 60 80 0 Ambient Temperature, Ta() PD - POUT RL=4 f=1kHz V CC=12V 5 Power Dissipation, PD(W) Allowable Power Dissipation, PD(W) (1) 12 0 20 0 PD -Ta 14 2 Output Voltage, V2,V10 (V) ICCQ,V2,V10 - Ta Quiescent Current, ICCQ (mA) Total Harmonic Distortion, THD (%) THD - Ta 4 3 9 2 1 0 0 1 4 2 3 5 Output Voltage, POUT (W) 6 7 UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 9 of 9 QW-R107-013,C