SN761633 FM STEREO RADIO WITH TRANSMITTER www.ti.com SLES210B - OCTOBER 2007 - REVISED FEBRUARY 2008 FEATURES 1 * * * * * * * * * * * * * Single-Chip FM Stereo Radio and Transmitter FM Stereo MPX [Receive (Rx), Transmit (Tx)] Frequency Range 76 MHz to 108 MHz (Rx, Tx) Low Supply Current - Rx: 11.5 mA (VCC = 3 V, No RF Input) - Tx: 13 mA (VCC = 3 V, No Audio Input, RTX = Open) 32.768-kHz Crystal I2C Interface MPX Output for RDS (Rx) Seek Tuning (Rx) RFAGC (Rx) RF Auto-Power Control (Tx) Pilot Cancel (Rx) Sixth-Order 15-kHz LPF (Tx) Programmable De/Pre-Emphasis (50/75 s) * * * * * * * Pilot Out (Tx) General-Purpose External Input (Tx) High Power Selectable RF Output (Tx) -7/-3/1/4 dBm High Cut Control (HCC), Stereo Noise Control (SNC) (Rx) Soft Mute (Rx) VCC = 2.5 V to 4 V 40-Pin QFN Package APPLICATIONS * * * Portable Media Players MP3 Players Personal Navigation Devices CP TEST OUT GND OSC VT OSC NC RFAGC TX OUT GND RF RF IN1 RTA PACKAGE (TOP VIEW) 1 40 39 38 37 36 35 34 33 32 31 30 2 29 3 28 4 27 5 26 6 25 7 24 8 23 9 22 10 21 11 12 13 14 15 16 17 18 19 20 RF IN2 VCC RF MPX FIL RSSI IREF FIL REG MPX REF PLT FIL PLT DET1 PLT DET2 EXT IN PLT OUT GND A RIN LIN ROUT LOUT VCCA MPX OUT TEST IN VCC OSC STBY SDA SCL VCC D GND D PORT2 PORT1 XTAL2 XTAL1 NC - No internal connection DESCRIPTION The SN761633 is an FM radio receiver and transmitter IC for portable audio players. The circuit consists of a stereo FM radio receiver and FM transmitter, and is available in a small-outline package. 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright (c) 2007-2008, Texas Instruments Incorporated 29 RF IN2 28 + PLT DET2 PLT FIL MPX FIL MPX REF PLT DET1 22 21 20 TEST IN MPX OUT 19 RF IN1 -45 AGC 18 VCCA 32 LOUT VCC RTX 17 TX OUT I/O Divider 33 MPX TX Modulator TxPOW 34 RFAGC Deemphasis Preemphasis ROUT LPF 16 LIN 15 NC 35 OSC 36 VT 37 RIN 14 fc = 15 kHz fo Cont PLT ADJ MODADJ REG CP 40 TEST OUT 39 25 13 12 I/O Logic 11 8 9 10 XTAL1 XTAL2 7 PORT1 6 PORT2 5 GND D 4 VCC D 3 2 SCL 1 SDA 38 STBY GND OSC REG GND A PLL VCC OSC OSC 150M-217M 23 FM DET 31 LNA - GND RF 24 28 27 IF = 325k BPF +45 30 RSSI VCC RF IREF FIL FUNCTIONAL BLOCK DIAGRAM PLT OUT EXT IN SN761633 FM STEREO RADIO WITH TRANSMITTER www.ti.com SLES210B - OCTOBER 2007 - REVISED FEBRUARY 2008 TERMINAL FUNCTIONS TERMINAL NAME DESCRIPTION NO. SCHEMATIC CP 40 Charge-pump output Figure 1 EXT IN 11 External signal input Figure 2 GND A 13 Analog ground GND D 6 Digital ground GND OSC 38 Oscillator ground GND RF 32 RF ground IREF FIL 26 Reference current filter Figure 3 LIN 15 Audio left input Figure 4 LOUT 17 Audio left output Figure 5 MPX FIL 28 MPX PLL filter Figure 6 MPX REF 24 MPX reference voltage filter Figure 7 MPX OUT 19 MPX output Figure 8 NC 35 Not connected 36 Oscillator input Figure 9 Pilot detector PLL loop filter Figure 10 23 Pilot level detector filter Figure 11 PLT OUT 12 Pilot signal output Figure 12 PORT1, PORT2 8, 7 Port output Figure 13 REG 25 Regulator filter Figure 14 34 RFAGC filter Figure 15 RF input Figure 16 OSC PLT DET1, PLT DET2 PLT FIL RF AGC RF IN1, RF IN2 22, 21 31, 30 RIN 14 Audio right input Figure 4 ROUT 16 Audio right output Figure 5 RSSI 27 RSSI filter Figure 17 SCL 4 I2C clock input Figure 18 SDA 3 I2C data input/output Figure 19 STBY 2 Standby control input Figure 20 TEST IN 20 Test input Figure 21 TEST OUT 39 Test output Figure 22 Tx OUT 33 Transmitter output Figure 23 VCC A 18 Analog power supply VCC D 5 Digital power supply VCC OSC 1 Oscillator power supply VCC RF 29 RF power supply VT 37 Tuning voltage output Figure 1 Crystal oscillator input/output Figure 24 XTAL1, XTAL2 10, 9 Submit Documentation Feedback Copyright (c) 2007-2008, Texas Instruments Incorporated Product Folder Link(s): SN761633 3 SN761633 FM STEREO RADIO WITH TRANSMITTER www.ti.com SLES210B - OCTOBER 2007 - REVISED FEBRUARY 2008 40 37 11 20k 100 k 20k Figure 1. CP and VT Figure 2. EXT IN 15 14 26 40k 100 Figure 3. IREF FIL Figure 4. LIN and RIN 50 16 17 28 Figure 5. LOUT and ROUT Figure 6. MPX FIL 19 24 Figure 7. MPX REF 4 Figure 8. MPX OUT Submit Documentation Feedback Copyright (c) 2007-2008, Texas Instruments Incorporated Product Folder Link(s): SN761633 SN761633 FM STEREO RADIO WITH TRANSMITTER www.ti.com SLES210B - OCTOBER 2007 - REVISED FEBRUARY 2008 36 50k 21 22 50k Figure 9. OSC Figure 10. PLT DET1 and PLT DET2 12 23 30k 1.6V Figure 11. PLT FIL Figure 12. PLT OUT 7 8 25 60 Figure 13. PORT1 and PORT2 Figure 14. REG 30 31 34 Figure 15. RFAGC Figure 16. RFIN1 and RFIN2 27 10k 4 1.5p Figure 17. RSSI Figure 18. SCL Submit Documentation Feedback Copyright (c) 2007-2008, Texas Instruments Incorporated Product Folder Link(s): SN761633 5 SN761633 FM STEREO RADIO WITH TRANSMITTER www.ti.com SLES210B - OCTOBER 2007 - REVISED FEBRUARY 2008 10k 510 3 2 60 1.5p Figure 19. SDA Figure 20. STBY 39 900 20 30k Figure 21. TEST IN Figure 22. TEST OUT 10 33 Figure 23. Tx OUT 9 Figure 24. XTAL1 and XTAL2 ABSOLUTE MAXIMUM RATINGS (1) over recommended operating free-air temperature range (unless otherwise noted) MIN MAX VCC Supply voltage range VCCA, VCCD, VCC RF -0.3 60 VIN Input voltage range Other pins -0.3 VCC V TA Operating free-air temperature range -20 85 C Tstg Storage temperature range -65 150 C (1) UNIT V Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. RECOMMENDED OPERATING CONDITIONS VCC Supply voltage TA Operating free-air temperature VCCA, VCCD, VCC RF, VCC OSC MIN NOM MAX 2.5 3 4 V 85 C -20 UNIT CAUTION: The SN761633 has four VCC pins (VCCA, VCCD, VCC OSC, and VCC RF). Use of a single power source for all VCC pins is recommended. In the case of multiple power supplies, VCCD should be applied first. 6 Submit Documentation Feedback Copyright (c) 2007-2008, Texas Instruments Incorporated Product Folder Link(s): SN761633 SN761633 FM STEREO RADIO WITH TRANSMITTER www.ti.com SLES210B - OCTOBER 2007 - REVISED FEBRUARY 2008 This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ELECTRICAL CHARACTERISTICS - TOTAL DEVICE VCC = 3 V, T = 25C, measured in the circuit of Figure 26; RF input voltage (VRF) = 60 dBVemf; RF frequency (fRF) = 98.1 MHz, Audio signal frequency (fAF) = 1 kHz, Mono, FM = 22.5 kHzdev (30% at 75-kdev Ref.), BW = LPF 30k (unless otherwise noted) Supply Voltages and Currents PARAMETER TEST CONDITIONS MIN TYP MAX 2.5 3 4 UNIT VCC Supply voltage VCCA, VCCD, VCC RF, and VCC OSC are the same voltage ICC Rx Rx-mode supply current No RF signal input 11.5 mA ICC Tx1 Tx-mode supply current 1 No LIN/RIN input, TxPOW[1:0] = 00, RTx = open 13 mA 12 mA 11.5 mA 18 mA V ICC Tx2 Tx-mode supply current 2 No LIN/RIN input, TxPOW[1:0] = 00, RTx = open, DIS_AFLPF = 1 ICC Tx3 Tx-mode supply current 3 External input only mode, EN_EXTIN = 1, DIS_LRIN = 1, DIS_AFLPF = 1, TxPOW[1:0] = 00, RTx = open ICC Tx4 Tx-mode supply current 4 No LIN/RIN input, TxPOW[1:0] = 10, RTx = 300 ICC Tx5 Tx-mode supply current 5 No LIN/RIN input, TxPOW[1:0] = 11, RTx = 150 24 ICC STBY1 Standby supply current 1 STBY (bit) = 1 0.1 10 A STBY2 Standby supply current 2 STBY (2 pin) = GND 0.1 10 A ICC mA Crystal Oscillator PARAMETER fXTAL TEST CONDITIONS Crystal oscillator frequency Crystal CL = 12.5 pF TYP UNIT 32.768 kHz Voltage-Controlled Oscillator PARAMETER fOSC Oscillator frequency range MIN MAX UNIT 150 217 MHz Synthesizer PARAMETER N Programmable counter fREF Reference frequency for phase detector fSTEP Tuning frequency step TEST CONDITIONS US US/EU band range for search stop LOC_HL = 0 LOC_HL = 1 fRANGE JPN Japan band range for search stop LOC_HL = 0 ICP Charge-pump current TYP 14 bit LOC_HL = 1 fRANGE MIN MAX 16383 16.384 kHz 8.192 kHz 10707 13237 dec 87.387 108.113 MHz 10628 13157 dec 87.390 108.107 MHz 9304 11039 dec 75.893 90.107 MHz 9224 10960 dec 90.109 MHz 75.888 CP[1:0] = 00 0.6 CP[1:0] = 01 1.25 CP[1:0] = 10 2.5 CP[1:0] = 11 5 Submit Documentation Feedback Copyright (c) 2007-2008, Texas Instruments Incorporated Product Folder Link(s): SN761633 UNIT A 7 SN761633 FM STEREO RADIO WITH TRANSMITTER www.ti.com SLES210B - OCTOBER 2007 - REVISED FEBRUARY 2008 I2C Interface PARAMETER TEST CONDITIONS VIH High-level input voltage (SCL, SDA) VIL Low-level input voltage (SCL, SDA) VOL Low-level ouput voltage (SDA) fSCL Clock frequency (SCL) MIN MAX UNIT 0.7 x VCC V 0.3 x VCC V 0.4 V 400 kHz VCC = 3 V, IOL = 500 A ELECTRICAL CHARACTERISTICS - Rx BLOCK VCC = 3 V, TA = 25C, measured in the circuit of Figure 26; RF input voltage (VRF) = 60 dBVemf, RF frequency (fRF) = 98.1 MHz, Audio signal frequency (fAF) = 1kHz, Mono, FM = 22.5 kHzdev (30% at 75-kdev Ref.), BW = LPF 30 k (unless otherwise noted) RF Signal Input PARAMETER fTU RANGE TEST CONDITIONS MIN Tuning frequency range TYP MAX 76 108 UNIT MHz VRx Sensitivity input voltage (S+N)/N = 26 dB, 22.5-kHz dev, De-emphasis = 75 s RRFIN Input resistance RF IN at 100 MHz, No RF signal input 120 CRFIN Input capacitance RF IN at 100 MHz, No RF signal input 1.5 pF IRRx Image rejection ratio 30 dB 10 dBVemf IF Band-Pass Filter TYP UNIT fIF IF center frequency PARAMETER Peak frequency, Test mode TEST CONDITIONS 325 kHz BIF IF bandwidth -3 dB, Test mode 130 kHz S+200 Selectivity high side (200 kHz) 325 kHz + 200 kHz, Test mode 25 dB S-200 Selectivity low side (200 kHz) 325 kHz - 200 kHz, Test mode 30 dB S+100 Selectivity high side (100 kHz) 325 kHz + 100 kHz, Test mode 8 dB S-100 Selectivity low side (100 kHz) 325 kHz - 100 kHz, Test mode 7 dB FM Demodulator MPX OUT PARAMETER VMPXOUT TEST CONDITIONS MPX OUT output level TYP 22.5 kHz dev, fAF = 1 kHz, EN_MPXOUT = 1 75 UNIT mVrms Soft Mute PARAMETER VS MUTE ATTS 8 MUTE TEST CONDITIONS TYP UNIT Soft mute start point S_MUTE = 1, -3 dB 11 dBVemf Soft mute attenuation VRF = 60 dBVemf, S_MUTE = 0 to 1, 0 V applied to RSSI pin externally as pseudo condition of no RF signal input 18 dB Submit Documentation Feedback Copyright (c) 2007-2008, Texas Instruments Incorporated Product Folder Link(s): SN761633 SN761633 FM STEREO RADIO WITH TRANSMITTER www.ti.com SLES210B - OCTOBER 2007 - REVISED FEBRUARY 2008 ELECTRICAL CHARACTERISTICS - Rx BLOCK (CONTINUED) VCC = 3 V, TA = 25C, measured in the circuit of Figure 26; RF input voltage (VRF) = 60 dBVemf, RF frequency (fRF) = 98.1 MHz, audio signal frequency (fAF) = 1kHz, Mono, FM = 22.5 kHzdev (30% at 75 kdev Ref.), BW = LPF 30 k (unless otherwise noted) High Cut Control PARAMETER TCDE EM TCDE EM HCC TEST CONDITIONS De-emphasis time constant TYP EMTC = 0 50 EMTC = 1 75 VRF = 60 dBVemf, EMTC = 0 150 VRF = 60 dBVemf, 0 V applied to RSSI pin externally as pseudo condition of no RF signal input EMTC = 1 225 VRF = 60 dBVemf, De-emphasis time constant on HCC applied UNIT s s MPX Decoder PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VO MONO Mono output level Mono, 22.5 kHzdev, fAF =1 kHz, De-emphasis = 75 s 75 mVrms VO ST Stereo output level L = R, 22.5 kHzdev, fAF =1 kHz, De-emphasis = 75 s, Pilot = 7.5 kHzdev (10%) 75 mVrms VDIFF LOUT- and ROUT-level difference L = R, 22.5 kHzdev, fAF = 1 kHz, De-emphasis = 75 s, Pilot = 7.5 kHzdev (10%) LOUT-level ref. -1 ATTMUTE MUTE attenuation MUTE = 1 60 dB ATTL MUTE LOUT MUTE attenuation MUTE_L = 1 60 dB MUTE ROUT MUTE attenuation MUTE_R = 1 60 dB fODD Overdrive deviation margin frequency fAF = 1 kHz, De-emphasis = 75 s THD < 3% 150 kHz S/NMONO Mono signal-to-noise ratio 75 kHzdev (100%)., fAF = 1 kHz, De-emphasis = 75 s 60 dB THDMONO Mono total harmonic distortion 22.5 kHzdev, fAF = 1 kHz, De-emphasis = 75 s 0.3 % S/NST Stereo signal-to-noise ratio 67.5 kHzdev (90%)., fAF = 1 kHz, De-emphasis = 75 s, Pilot = 7.5 kHzdev (10%) 50 dB THDST Stereo total harmonic distortion 22.5 kHzdev, fAF = 1 kHz, De-emphasis = 75 s, Pilot = 7.5 kHzdev (10%) 1 % SEPST Stereo separation 22.5 kHzdev, fAF = 1 kHz, De-emphasis = 75 s, Pilot = 7.5 kHzdev (10%) 33 dB ST_IND 0 to 1 at I2C read mode ATTR DEVPLT DET Pilot detect deviation HYSPLT DET Pilot detect deviation hysteresis 1 dB 5 % 2 dB VSWMST Mono-to-stereo switch level 22.5 kHzdev, fAF = 1 kHz, De-emphasis = 75 s, Pilot = 7.5 kHzdev (10%), SNC = 0 33 dBVemf HYSSWMST Mono-to-stereo switch-level hysteresis 22.5 kHzdev, fAF = 1 kHz, De-emphasis = 75 s, Pilot = 7.5 kHzdev (10%), SNC = 0 2 dB Submit Documentation Feedback Copyright (c) 2007-2008, Texas Instruments Incorporated Product Folder Link(s): SN761633 9 SN761633 FM STEREO RADIO WITH TRANSMITTER www.ti.com SLES210B - OCTOBER 2007 - REVISED FEBRUARY 2008 ELECTRICAL CHARACTERISTICS - Rx BLOCK (CONTINUED) VCC = 3 V, TA = 25C, measured in the circuit of Figure 26; RF input voltage (VRF) = 60 dBVemf, RF frequency (fRF) = 98.1 MHz, Audio signal frequency (fAF) = 1kHz, Mono, FM = 22.5 kHzdev (30% at 75-kdev ref.), BW = LPF 30 k (unless otherwise noted) Stereo Noise Control PARAMETER VSNC SNC start point TEST CONDITIONS TYP 22.5 kHzdev, fAF = 1 kHz, Pilot = 7.5 kHzdev (10%), SNC = 1, Separation = 20 dB UNIT 36 dBVemf RSSI PARAMETER VRSSI RSSI minimum input level MIN RESRSSI TEST CONDITIONS TYP RSSI[3:0] 0 to1 (dec) at I2C read mode RSSI resolution UNIT 9 dBVemf 2 dB IF Counter PARAMETER VI MIN MAX UNIT 9 dBVemf Counter length 7 Bit DIFC Prescaler ratio 64 tIFC Gate time 1/(32.768 kHz/400) RESIFC Resolution 64 x 32.768 kHz/400 NIFC CNT Count center 325k/64/32.768 kHz x 400 NIFC STOP IF counter result for search stop IFCC GATE 0 to 127 TYP BITIFC 10 RF input level for correct IF count TEST CONDITIONS 12.207 57 Submit Documentation Feedback ms 5.24288 kHz 62 Dec 67 Dec Copyright (c) 2007-2008, Texas Instruments Incorporated Product Folder Link(s): SN761633 SN761633 FM STEREO RADIO WITH TRANSMITTER www.ti.com SLES210B - OCTOBER 2007 - REVISED FEBRUARY 2008 ELECTRICAL CHARACTERISTICS - Tx BLOCK VCC = 3 V, TA = 25C, measured in the circuit of Figure 26; RF frequency fRF = 98.1 MHz, BAND = 0 (USEU), MODADJ[3:0] = +6 dB (for 98.1 MHz), Audio signal frequency fAF = 1 kHz, 100% means FM 75 kdev, BW = LPF 30 k, TxPOW[1:0] = -7 dBm measured with typical home hi-fi tuner (unless otherwise noted) AF PARAMETER MODRAF ADJ VIMAX VIMAX TEST CONDITIONS AF modulation adjust ratio AF maximum input level (pre-emphasis 50 s) 50 AF maximum input level (pre-emphasis 75 s) 75 VIAF AF yypical input level for 100% dev fIAFR Input frequency range RIAF AF input impedance tPRE Pre-emphasis fLPF AFLPF frequency response MIN TYP AFADJ [2:0] = 000 -9 AFADJ [2:0] = 001 -6 AFADJ [2:0] = 010 -3 AFADJ [2:0] = 011 (Ref.) 0 AFADJ [2:0] = 100 3 AFADJ [2:0] = 101 6 AFADJ [2:0] = 110 9 AFADJ [2:0] = 111 12 MAX UNIT dB AFADJ = 0 dB, EMTC = 0, fs = 400 Hz, L = R each channel 1000 AFADJ = 0 dB, EMTC = 0, fs = 10 kHz, L = R each channel 330 AFADJ = 0 dB, EMTC = 1, fs = 400 Hz, L = R each channel 1000 AFADJ = 0 dB, EMTC = 1, fs = 10 kHz, L = R each channel 200 mVpp mVpp AFADJ = 0 dB, fs = 400 Hz, DIS_EM = 0, L = R each channel 250 mVrms 20 15 k 40 EMTC bit = 0 50 EMTC bit = 1 75 DIS_AFLPF = 0, -3 dB 15 Hz k s kHz Mono Mode PARAMETER TEST CONDITIONS MIN TYP MAX UNIT 15 k Hz Output frequency response CP = 1.25 A S/NMONO98 Mono signal-to-noise ratio at 98.1 MHz (100% modulation) L = R = 250 mVrms, fAF = 1 kHz, AFADJ = 0 dB, MODADJ = 5 dB, PLTADJ = off, MONO_ST = 1, RF = 98.1 MHz, BAND = 0 55 dB THDMONO98 Mono total harmonic distortion at 98.1 MHz (30% modulation) L = R = 75 mVrms, fAF = 1 kHz, AFADJ = 0 dB, MODADJ = 5 dB, PLTADJ = off, MONO_ST = 1, RF = 98.1 MHz, BAND = 0 1 % S/NMONO83 Mono signal-to-noise ratio at 83 MHz (100% modulation) L = R = 250 mVrms, fAF = 1kHz, AFADJ = 0 dB, MODADJ = 11 dB, PLTADJ = off, MONO_ST = 1, RF = 83 MHz, BAND = 1 55 dB THDMONO83 Mono total harmonic distortion at 83 MHz (30% modulation) L = R = 75 mVrms, fAF = 1 kHz, AFADJ = 0 dB, MODADJ = 11 dB PLTADJ = off, MONO_ST = 1, RF = 83 MHz, BAND = 1 0.5 % ATTMT MUTE attenuation MUTE bit = 1 fO MONO 20 50 dB MONO Submit Documentation Feedback Copyright (c) 2007-2008, Texas Instruments Incorporated Product Folder Link(s): SN761633 11 SN761633 FM STEREO RADIO WITH TRANSMITTER www.ti.com SLES210B - OCTOBER 2007 - REVISED FEBRUARY 2008 ELECTRICAL CHARACTERISTICS - Tx BLOCK (CONTINUED) VCC = 3 V, TA = 25C, measured in the circuit of Figure 26; RF frequency fRF = 98.1 MHz, BAND = 0 (US/EU), MODADJ[3:0] = +6 dB (for 98.1 MHz), Audio signal frequency fAF = 1 kHz, 100% means FM 75kdev, BW = LPF 30 k, TxPOW[1:0] = -7 dBm measured with typical home hi-fi tuner (unless otherwise noted) Stereo Mode PARAMETER TEST CONDITIONS MIN TYP MAX UNIT S/NST98 Stereo signal-to-noise ratio at 98.1 MHz Main + Sub = 90%, Pilot = 10% L = R = 225 mVrms, fAF = 1 kHz, AFADJ = 0 dB, MODADJ = 5 dB, PLTADJ = 0 dB, fRF= 98.1 MHz, BAND = 0 SEPST98 Stereo separation at 98.1 MHz Main + Sub = 30%, Pilot = 10% L or R = 75 mVrms, fAF = 1 kHz, AFADJ = 0 dB, MODADJ = 5 dB, PLTADJ = 0 dB,fRF = 98.1 MHz, BAND = 0 25 dB THDST98 Stereo total harmonic distortion at 98.1 MHz Main + Sub = 30%, Pilot = 10% L or R = 75 mVrms, fAF = 1 kHz, AFADJ = 0 dB, MODADJ = 5 dB, PLTADJ = 0 dB, fRF = 98.1MHz, BAND = 0 1 % S/NST83 Stereo signal-to-noise ratio at 83 MHz Main + Sub = 90%, Pilot = 10% L = R = 225 mVrms, fAF = 1 kHz, AFADJ = 0 dB, MODADJ = 11 dB, PLTADJ = 0 dB, fRF = 83 MHz, BAND = 1 55 dB SEPST83 Stereo separation at 83 MHz Main + Sub = 30%, Pilot = 10% L or R = 75 mVrms, fAF = 1 kHz, AFADJ = 0 dB, MODADJ = 11 dB, PLTADJ = 0 dB, fRF = 83 MHz, BAND = 1 30 dB THDST83 Stereo total harmonic distortion at 83 MHz Main + Sub = 30%, Pilot = 10% L or R = 75 mVrms, fAF = 1 kHz, AFADJ = 0 dB, MODADJ = 11 dB, PLTADJ = 0 dB, fRF = 83 MHz, BAND = 1 0.5 % DIFFST Left and right channel modulation difference L = R = 75 mVrms, fAF = 1 kHz, AFADJ = 0 dB, MODADJ = 11 dB, PLTADJ = 0 dB, fRF = 98.1 MHz, BAND = 1 Lch level ref. MOD 55 dB -1 1 dB EXT IN PARAMETER VEXT TEST CONDITIONS MIN TYP MAX UNIT 500 mVpp Maximum input level EN_EXTIN = 1, DIS_LRIN = 0 Input frequency range EN_EXTIN = 1, DIS_LRIN = 0 VOPLT Pilot output level EN_EXTIN = 1, DIS_LRIN = 0 40 mVrms VEXT Typical input level for 100% dev EN_EXTIN = 1, DIS_LRIN = 0 125 mVrms fR MAX EXT TYP 20 80 k Hz RF Power PARAMETER VTxOUT 12 Tx output power TEST CONDITIONS TYP TXPOW[1:0] = 00, RTX = open, RL = 50 , EN_EXTIN = 0, DIS_LRIN = 1 -7 TXPOW[1:0] = 01, RTX = 300 , RL = 50 , EN_EXTIN = 0, DIS_LRIN = 1 -3 TXPOW[1:0] = 10, RTX = 300 , RL = 50 , EN_EXTIN = 0, DIS_LRIN = 1 1 TXPOW[1:0] = 11, RTX = 150 , RL = 50 , EN_EXTIN = 0, DIS_LRIN = 1 4 Submit Documentation Feedback UNIT dBm Copyright (c) 2007-2008, Texas Instruments Incorporated Product Folder Link(s): SN761633 SN761633 FM STEREO RADIO WITH TRANSMITTER www.ti.com SLES210B - OCTOBER 2007 - REVISED FEBRUARY 2008 I2C DATA FORMAT I2C Write Data (R/W = 0) Table 1. Rx-Mode Write Data (Address Bit 2, 1 = 0,0) BYTE BIT 7 (MSB) BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 (LSB) Address 1 1 0 0 0 0 0 R/W = 0 Data 1 MUTE SM N13 N12 N11 N10 N9 N8 Data 2 N7 N6 N5 N4 N3 N2 N1 N0 Data 3 SM_UD SM_SL1 SM_SL0 LOC_HL MONO_ST MUTE_R MUTE_L PORT1 Data 4 PORT2 STBY BAND A_MUTE S_MUTE HCC SNC SM_IND Data 5 DIS_EM EMTC EN_MPXOUT 0 0 0 CP1 CP0 Reserved (1) Data 6-8 (1) Do not write any data on reserved area. The data of this area is loaded at power-on-reset. Table 2. Tx-Mode Write Data (Address Bit 2, 1 = 1,1) BIT 7 (MSB) BIT 6 Address 1 1 0 0 0 Data 1 MUTE 0 N13 N12 N11 BYTE BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 (LSB) 1 1 R/W = 0 N10 N9 N8 Data 2 N7 N6 N5 N4 N3 N2 N1 N0 Data 3 PLTADJ2 PLTADJ1 PLTADJ0 EN_EXTIN MONO_ST TxPOW1 TxPOW0 PORT1 Data 4 PORT2 STBY BAND MODADJ3 MODADJ2 MODADJ1 MODADJ0 DIS_AFLPF Data 5 DIS_EM EMTC DIS_LRIN AFADJ2 AFADJ1 AFADJ0 CP1 CP0 Data 6-8 (1) Reserved (1) Do not write any data on reserved area. The data of this area is loaded at power-on-reset. I2C Write Data (R/W = 1) Table 3. Rx-Mode Write Data (Address Bit 2, 1 = 0,0) BYTE BIT 7 (MSB) BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 (LSB) Address 1 1 0 0 0 0 0 R/W = 1 Data 1 READY BAND_LMT N13 N12 N11 N10 N9 N8 Data 2 N7 N6 N5 N4 N3 N2 N1 N0 Data 3 ST_IND IFC6 IFC5 IFC4 IFC3 IFC2 IFC1 IFC0 Data 4 RSSI3 RSSI2 RSSI1 RSSI0 LOCKDET X X X Table 4. Tx-Mode Write Data (Address Bit 2, 1 = 1,1) BYTE BIT 7 (MSB) BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 (LSB) Address 1 1 0 0 0 1 1 R/W = 1 Data 1 0 0 N13 N12 N11 N10 N9 N8 Data 2 N7 N6 N5 N4 N3 N2 N1 N0 Data 3 ST_IND 1 1 1 1 1 1 1 Data 4 1 1 1 1 X 1 1 1 Submit Documentation Feedback Copyright (c) 2007-2008, Texas Instruments Incorporated Product Folder Link(s): SN761633 13 SN761633 FM STEREO RADIO WITH TRANSMITTER www.ti.com SLES210B - OCTOBER 2007 - REVISED FEBRUARY 2008 Table 5. Rx-Mode Write Data Symbol Description (Address Bit 2, 1 = 0,0) SYMBOL DESCRIPTION DEFAULT MUTE Mute control bit 0: Mute off 1: Mute on 0 SM Search mode control bit 0: Off 1: On (start search when 0 to 1) 0 N13-N0 Programmable counter bits Set main counter SM_UD Search up/down set bit 0: Down 1: Up SM_SL1, SM_SL0 Search stop-level bits LOC_HL Local high-/low-side injection control bit 0: Low-side LO injection 1: High-side LO injection 1 MONO_ST Mono/stereo switch 0: Auto stereo 1: Forced mono 0 MUTE_R, MUTE_L R-ch mute switch, L-ch mute switch 0: Mute off 1: Mute on 0, 0 PORT1 Port 1 control bit PORT 1 is enable as general purpose port in condition of SM_IND = 0 0: Low (Nch-MOS open drain on) 1: High (Nch-MOS open drain off) When SIM_IND = 1, PORT 1 outputs search indicator. 1 PORT2 Port 2 control bit 0: Low (open drain on) 1: High (open drain off) 1 STBY Standby control bit 0: Standby off 1: Standby on 1 BAND Band selection at search mode 0: US/EU band (87.5 MHz to 108 MHz) 1: Japan band (76 MHz to 90 MHz) 0 A_MUTE Auto mute control bit 0: Off 1: On (auto mute when PLL unlocked or search mode) 0 S_MUTE Soft mute control bit 0: Off 1: On 0 HCC High cut control bit 0: Off 1: On 0 SNC Stereo noise cancel bit 0: Off 1: On 0 SM_IND Search indicator control bit 0: Disable indicator. Port 1 is controlled by bit PORT1. 1: Enable indicator. Port1 outputs as search indicator (in search sequence: L, Normal operation: H). 0 DIS_EM Disable De-emphasis bit 0: De-emphasis on 1: De-emphasis off 0 EMTC Time constant control bit for De-emphasis 0: 50 s 1: 75 s 1 EN_MPXOUT MPX output control bit 0: Output disable 1: Output enable 0 CP1, CP0 CP current selection bit 1, CP current selection bit 0 14 All 0 1 SM_L1 SM_L0 RSSI Level 0 0 1 1 0 1 0 1 0 (test function) 5 8 12 CP1 CP0 CP Current 0 0 1 1 0 1 0 1 0.6 A 1.25 A 2.5 A 5 A Submit Documentation Feedback 1, 1 1, 0 Copyright (c) 2007-2008, Texas Instruments Incorporated Product Folder Link(s): SN761633 SN761633 FM STEREO RADIO WITH TRANSMITTER www.ti.com SLES210B - OCTOBER 2007 - REVISED FEBRUARY 2008 Table 6. Tx-Mode Write Data Symbol Description (Address Bit 2, 1 = 1,1) SYMBOL DESCRIPTION DEFAULT MUTE Mute control bit 0: Mute off 1: Mute on 0 N13-N0 Programmable counter bits Set main counter PLTADJ2, PLTADJ1, PLTADJ0 Pilot-level adjust bits EN_EXTIN EXT input enable bit 0: Disable EXT IN, PLT OUT 1: Enable EXT IN, PLT OUT 0 MONO_ST Mono/stereo switch 0: 38 kHz subcarrier on 1: 38 kHz subcarrier off For mono mode, PLTADJ bits have to be set as PLTADJ[2:0] = 111 0 TxPOW1, TxPOW0 Tx power-level selection bits PORT1, PORT2 Port 1 control bit, Port 2 control bit PORT1 and PORT2 are enabled as general purpose ports. 0: Low (Nch-MOS open drain on) 1: High (Nch-MOS open drain off) 1, 1 STBY Standby control bit 0: Standby off 1: Standby on 1 BAND Band selection at search mode 0: US/EU band (87.5 MHz to 108 MHz) 1: Japan band (76 MHz to 90 MHz) 0 MODADJ3, MODADJ2, MODADJ1, MODADJ0 Modulation adjust bits DIS_AFLPF Disable 15-kHz LPF 0: AF 15-kHz LPF enable 1: AF 15-kHz LPF disable 0 DIS_EM Disable pre-emphasis bit 0: Pre-emphasis on 1: Pre-emphasis off 0 EMTC Time constant control bit for pre-emphasis 0: 50 s 1: 75 s 1 DIS_LIN, DIS_RIN MPX output control bit 0: Output disable 1: Output enable 0 All 0 PLTADJ2 PLTADJ1 PLTADJ0 Level 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 -6 dB -4 dB -2 dB 0 dB 2 dB 4 dB 6 dB Pilot off 0, 1, 1 (AFADJ[2:0] = 011, 0 dB = L = R = 10% of 250 mVrms 100% dev) TxPOW1 TxPOW0 Level 0 0 1 1 0 1 0 1 -7 dBm 3 dBm 1 dBm 4 dBm MODADJ3 MODADJ2 MODADJ1 MODADJ0 Total Composite Level 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 dB 1 dB 2 dB 3 dB 4 dB 5 dB 6 dB 7 dB 8 dB 9 dB 10 dB 11 dB 12 dB 13 dB 14 dB 15 dB Submit Documentation Feedback Copyright (c) 2007-2008, Texas Instruments Incorporated Product Folder Link(s): SN761633 0, 0 15 SN761633 FM STEREO RADIO WITH TRANSMITTER www.ti.com SLES210B - OCTOBER 2007 - REVISED FEBRUARY 2008 Table 6. Tx-Mode Write Data Symbol Description (Address Bit 2, 1 = 1,1) (continued) SYMBOL DESCRIPTION AFADJ2, AFADJ1, AFADJ0 AF-level adjust bits CP1, CP0 CP current selection bit 1, CP current selection bit 0 DEFAULT AFADJ2 AFADJ0 AFADJ1 Level 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 -9 dB -6 dB -3 dB 0 dB 3 dB 6 dB 9 dB 12 dB CP1 CP0 CP Current 0 0 1 1 0 1 0 1 0.6 A 1.25 A 2.5 A 5 A 0, 1, 1 1, 0 Table 7. Rx-Mode Read Data Symbol Description (Address Bit 2, 1 = 0,0) SYMBOL DESCRIPTION READY Ready flag 0: PLL unlocked or search operation 1: Normal operation BAND_LMT Band limit flag at end of search operation 0: Not reached band limit (found station) 1: Reached band limit (not found station) (reset to 0 when I2C date write) N13-N0 Programmable counter bits Setting of counter after search ST_IND Stereo indicator bit 0: Mono reception 1: Stereo reception IFC6-0 IF counter result bits IF counter result (0 to 127 dec) Step frequency = (64 x 32.768 k)/400 = 5.24288 k (Hz) RSSI3-0 RSSI level bits RSSI level (0 to 15 dec) LOCKDET Lock detect flag 0: Unlocked 1: Locked Table 8. Tx-Mode Read Data Symbol Description (Address Bit 2, 1 = 1,1) SYMBOL DESCRIPTION N13-N0 Programmable counter bits Setting of main counter ST_IND Stereo indicator bit 0: Stereo modulation 1: Other status Table 9. Examples of Tx Mode Adjustment Bit Settings (1) BAND Tx FREQUENCY (MHz) MODADJ LEVEL (2) (dB) MODADJ BIT[3:0] AFADJ LEVEL (3) (dB) AFADJ BIT[2:0] PLTADJ LEVEL (dB) PLTADJ BIT[2:0] US/EU 87.5 9 1001 0 011 0 011 US/EU 108 3 0011 0 011 0 011 JP 76 13 1101 0 011 0 011 JP 90 8 1000 0 011 0 011 (1) (2) (3) 16 These settings are to obtain audio modulation level of 22.5 kHzdev (30% modulation) and pilot level of 7.5 kHzdev (10% modulation) when audio input level = 75 mVrms and audio input frequency = 400 Hz. An adequate level for each Tx frequency should be selected for MODADJ. See Figure 33 and Figure 34. AFADJ should be adjusted to maintain audio level x adjust level (dB) less than 250 mVrms. For example, when audio input level for 100% modulation is 500 mVrms, AFADJ should be -6 dB (AFADJ[2:1] = 001). Submit Documentation Feedback Copyright (c) 2007-2008, Texas Instruments Incorporated Product Folder Link(s): SN761633 SN761633 FM STEREO RADIO WITH TRANSMITTER www.ti.com SLES210B - OCTOBER 2007 - REVISED FEBRUARY 2008 PLL Setting N13-N0 14-bit word (NPLL) can be calculated as follows: fIF= IF frequency (325 kHz) fRF = Wanted tuning frequency fIXTAL = Crystal frequency (32.768 kHz) Rx Upper Local Setting Lower Local Setting f +f NPLL = 4 X RF IF fXTAL f -f NPLL = 4 X RF IF fXTAL Tx NPLL = 4 X fRF fXTAL Example for Rx mode: fRF = 81.3 MHz, lower local NPLL = 4 X 81.3M - 325k = 9885 32.768 The PLL word becomes 269Dh (N[13:0] = 10 0110 1001 1101). Example for Tx mode: fRF = 88 MHz NPLL = 4 X 88M = 10742 32.768k The PLL word becomes 29F6h (N[13:0] = 10 1001 1111 0110). Standby Mode Standby mode can be controlled by STBY pin voltage and STBY bit data as shown in Table 10. Table 10. Standby Mode VOLTAGE APPLIED ON STBY PIN I2C STBY BIT DATA DEVICE OPERATION L 0 Standby L 1 Standby H 0 Normal Operation H 1 Standby Submit Documentation Feedback Copyright (c) 2007-2008, Texas Instruments Incorporated Product Folder Link(s): SN761633 17 SN761633 FM STEREO RADIO WITH TRANSMITTER www.ti.com SLES210B - OCTOBER 2007 - REVISED FEBRUARY 2008 FM Transmitter Block 15 kHz LPF L PreEmphasis MPX MODADJ[3:0] AFADJ[2:0] R 15 kHz LPF PreEmphasis TXPOW[1:0] Pilot PLTADJ[2:0] Figure 25. FM Transmitter Block Diagram Initial setting 18 Audio input level: L = R = 75 mVrms, AFADJ = 0 dB, fs = 400 Hz Pilot level: PLTADJ = 0 dB means 10% FM modulation: MODADJ depends on Tx frequency to be 22.5 kHz dev. Output power: TxPOW = -7 dBm Pullup resistance is not necessary. TxPOW =-3, 1 dB Antenna load 50 add pullup resistance RTX 300 TxPOW = 4 dBm Antenna load 50 add pullup resistance RTX 150 Submit Documentation Feedback Copyright (c) 2007-2008, Texas Instruments Incorporated Product Folder Link(s): SN761633 SN761633 FM STEREO RADIO WITH TRANSMITTER www.ti.com SLES210B - OCTOBER 2007 - REVISED FEBRUARY 2008 APPLICATION INFORMATION VCC 1 C19 Tx OUT 34 33 32 31 RF IN1 35 Tx OUT 36 C17 C18 NC 37 VT 38 OSC 39 GND OSC CP 40 RTx L2 GND RF C20 TEST OUT C21 VD1 RFAGC R8 C14 L1 C15 RF IN RF IN2 30 VCC OSC C16 2 STBY VCC RF 29 SDA 3 SDA MPX FIL 28 SCL 4 SCL RSSI 27 5 VCC D 6 GND D REG 25 PORT2 7 PORT2 MPX REF 24 PORT1 8 PORT1 PLT FIL 23 9 XTAL2 PLT DET1 22 10 XTAL1 PLT DET2 21 C12 C11 C10 SN761633 IREF FIL 26 C9 C8 X1 C7 C6 17 TEST IN 16 VCCA 15 MPX OUT 14 ROUT 13 LOUT 12 RIN GND A 11 LIN EXT IN PLT OUT C5 R3 18 19 20 EXT IN PLT OUT MPX OUT A. RIN LOUT LIN ROUT PART NAME VALUE PART NAME C5 (PLT DET) 0.22 F C18 (RFAGC) 4.7 nF VALUE 1 nF C6 (PLT DET) 22 nF C19 (OSC) C7 (PLT FIL) 0.1 F C20 (CP) 0.47 F C8 (REG) 0.1 F C21 (CP) 1 nF C9 (IREF FIL) 0.1 F L1 (RF IN) 100 nH C10 (RSSI) 0.01 F L2 (OSC) 24 or 27 nH C11 (MPX FIL) 0.47 F R3 (PLT DET) 2.2 k C12 (VCC RF) 0.1 F R8 (CP) 22 k C14 (RF IN1) 68 pF RTx (Tx OUT) 150 or 300 or open C15 (RF IN2) 22 pF VD1 BB202 or RKV651KK C16 (RF IN2) 330 pF X1 32.768 kHz, CL = 12.5 pF C17 (Tx OUT) 0.01 F This application information is advisory and a performance check is required at actual application circuits. TI assumes no responsibility for the consequences of use of this circuit, such as an infringement of intellectual property rights or other rights, including patents of third parties. Figure 26. Application Circuit Submit Documentation Feedback Copyright (c) 2007-2008, Texas Instruments Incorporated Product Folder Link(s): SN761633 19 SN761633 FM STEREO RADIO WITH TRANSMITTER www.ti.com SLES210B - OCTOBER 2007 - REVISED FEBRUARY 2008 RDS Solution SN761633 DATA RDS/RBDS Decoder MPX OUT LOUT/ROUT LIN/RIN PLT OUT DATA RDS/RBDS Encoder (EN_EXTIN=1) EXT IN Figure 27. RDS Solution 1 SN761633 DSP Audio L/R MPX OUT (EN_EXTIN=1 DIS_LRIN=1) Data Composite Signal EXT IN Figure 28. RDS Solution 2 (DSP Interface) Mixing Mode (Tx) LIN/RIN and EXT IN signals can be mixed as a Tx signal. SN761633 Audio Amplifier LOUT/ROUT Tx + LIN/RIN MP3 Player (EN_EXTIN=1, DIS_LRIN=0) EXT IN Cell Phone/Navigation Voice Figure 29. Mixing Mode of Tx Signal 20 Submit Documentation Feedback Copyright (c) 2007-2008, Texas Instruments Incorporated Product Folder Link(s): SN761633 SN761633 FM STEREO RADIO WITH TRANSMITTER www.ti.com SLES210B - OCTOBER 2007 - REVISED FEBRUARY 2008 TYPICAL CHARACTERISTICS 10 (A) 0 (C) Audio Output Level (dB) -10 -20 (D) Conditions: VCC = 3 V, TA = 25C, 30 kHz LPF 0 dB = mVrms HCC = 0 (off) SNC = 0 (off) MONO_ST = 0 (auto stereo) TC = 75 s, CP = 2.5 A fRF = 98.1 MHz, upper LO (B) -30 -40 -50 -60 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 RF Input Level (dBVemf) A. Mono signal, soft mute off (fAF = 1 kHz, 22.5 kHz dev, 30%) B. Noise in mono mode, soft mute off C. Mono signal, soft mute on (fAF = 1 kHz, 22.5 kHz dev, 30%) D. Noise in mono mode, soft mute on Figure 30. Rx-Mode FM Mono Characteristics (Soft Mute On/Off) Submit Documentation Feedback Copyright (c) 2007-2008, Texas Instruments Incorporated Product Folder Link(s): SN761633 21 SN761633 FM STEREO RADIO WITH TRANSMITTER www.ti.com SLES210B - OCTOBER 2007 - REVISED FEBRUARY 2008 TYPICAL CHARACTERISTICS (continued) 10 (A) 0 Audio Output Level (dB) (D) (B) -10 (E) -20 Conditions: VCC = 3 V, TA = 25C, 30 kHz LPF 0 dB = mVrms S_MUTE = 0 (soft mute off) SNC = 0 (off) MONO_ST = 0 (auto stereo) TC = 75 s, CP = 2.5 A fRF = 98.1 MHz, upper LO -30 (C) -40 (F) -50 -60 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 RF Input Level (dBVemf) A. Mono signal, high cut off (fAF = 1 kHz, 22.5 kHz dev, 30%) B. Mono signal, high cut off (fAF = 10 kHz, 22.5 kHz dev) C. Noise in mono mode, high cut off D. Mono signal, high cut on (fAF = 1 kHz, 22.5 kHz dev, 30%) E. Mono signal, high cut on (fAF = 10 kHz, 22.5 kHz dev) F. Noise in mono mode, high cut on Figure 31. Rx-Mode FM Mono Characteristics (High Cut Control [HCC] On/Off) 22 Submit Documentation Feedback Copyright (c) 2007-2008, Texas Instruments Incorporated Product Folder Link(s): SN761633 SN761633 FM STEREO RADIO WITH TRANSMITTER www.ti.com SLES210B - OCTOBER 2007 - REVISED FEBRUARY 2008 TYPICAL CHARACTERISTICS (continued) 10 Conditions: VCC = 3 V, TA = 25C, 30 kHz LPF Main + sub = 30%, Pilot = 10% 0 dB = mVrms S_MUTE = 0 (soft mute off) HCC = 0 (off) MONO_ST = 0 (auto stereo) TC = 75 s, CP = 2.5 A fRF = 98.1 MHz, upper LO (A) 0 Audio Output Level (dB) (D) -10 (E) (B) -20 (C) -30 (F) -40 -50 -60 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 RF Input Level (dBVemf) A. Stereo left signal, noise control off (fAF = 1 kHz, 22.5 kHz dev) B. Stereo right signal, noise control off (audio signal off) C. Noise in stereo mode, noise control off D. Stereo left signal, noise control on (fAF =1 kHz, 22.5 kHz dev) E. Stereo right signal, noise control on (audio signal off) F. Noise in stereo mode, noise control cut on Figure 32. Rx-Mode FM Stereo Characteristics [Stereo Noise Control (SNC) On/Off] Submit Documentation Feedback Copyright (c) 2007-2008, Texas Instruments Incorporated Product Folder Link(s): SN761633 23 SN761633 FM STEREO RADIO WITH TRANSMITTER www.ti.com SLES210B - OCTOBER 2007 - REVISED FEBRUARY 2008 TYPICAL CHARACTERISTICS (continued) 15 Conditions: VCC = 3 V, TA = 25C CP = 1.25 A AFADJ = 0 dB Audio input = 75 mVrms, 1 kHz 44 42 Degree of Modulation (%) 40 14 13 12 38 11 36 10 34 9 Degree of modulation 32 8 30 7 28 6 26 5 24 MODADJ (dec) 46 4 MODADJ setup 22 3 20 2 18 1 16 86 88 90 92 94 96 98 100 102 104 106 108 0 110 Tx Frequency (MHz) Figure 33. Tx Modulation Characteristics (US/EU Band) 46 15 42 Degree of Modulation (%) 40 14 Conditions: VCC = 3 V, TA = 25C CP = 1.25 A AFADJ = 0 dB Audio input = 75 mVrms, 1 kHz MODADJ setup 13 12 38 11 36 10 34 9 32 8 30 7 28 6 Degree of modulation 26 5 24 4 22 3 20 2 18 1 16 MODADJ (dec) 44 0 74 76 78 80 82 84 86 88 90 92 Tx Frequency (MHz) Figure 34. Tx Modulation Characteristics (Japan Band) 24 Submit Documentation Feedback Copyright (c) 2007-2008, Texas Instruments Incorporated Product Folder Link(s): SN761633 PACKAGE OPTION ADDENDUM www.ti.com 31-Mar-2012 PACKAGING INFORMATION Orderable Device SN761633RTAR Status (1) NRND Package Type Package Drawing WQFN RTA Pins Package Qty 40 2000 Eco Plan (2) Green (RoHS & no Sb/Br) Lead/ Ball Finish MSL Peak Temp (3) Samples (Requires Login) CU NIPDAU Level-2-260C-1 YEAR (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. 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Addendum-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device SN761633RTAR Package Package Pins Type Drawing WQFN RTA 40 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 2000 330.0 16.4 Pack Materials-Page 1 6.3 B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 6.3 1.1 12.0 16.0 Q2 PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN761633RTAR WQFN RTA 40 2000 367.0 367.0 38.0 Pack Materials-Page 2 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46C and to discontinue any product or service per JESD48B. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. 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