SN761634 www.ti.com ........................................................................................................................................................................................................ SLES226 – MAY 2008 FM STEREO TRANSMITTER FEATURES 1 CP GND_OSC VT OSC VCC_OSC 23 22 21 20 19 GND_D 1 18 TX_OUT 2 17 BUS_SEL XTAL2 3 16 IREF_FIL SDA(D0) 4 15 GND_RF Portable Audio Player MP3 Player Personal Navigation Device (PND) Portable Media Player (PMP) L_IN 12 R_IN 11 ADD_SEL(POW) GND_A 10 MPX_FIL 13 9 14 6 8 5 PORT1(D2) VCC SCL(D1) APPLICATIONS • • • • 24 D4 XTAL1 EMTC • • RTW PACKAGE (TOP VIEW) 7 • • • Single-Chip FM Stereo Transmitter Selectable I2C/Parallel Control Mode VCC = 2.5 V to 4 V 76 MHz to 108 MHz Tx Frequency Range Selectable –7-, –3-, 1-, 4-dBm Tx Hi-Power Output ICC = 12 mA (Depends on Tx Power) 32.768 kHz Clock 24-Pin Quad Flatpack No Lead (QFN) Package, 4 × 4 mm Standby Fourth Order 15-kHz Low Pass Filter (LPF) PORT2(D3) • • • • • DESCRIPTION The SN761634 is an FM stereo transmitter IC for portable audio players. 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 © 2008, Texas Instruments Incorporated SN761634 SLES226 – MAY 2008 ........................................................................................................................................................................................................ www.ti.com TXPOW[1:0] D4 (D4) PORT2 (D3) PORT1 (D2) SCL (D1) SDA (D0) BUS_SEL EMTC ADD_SEL(POW) GND_RF GND_OSC GND_D GND_A VCC_OSC VCC FM TRANSMITTER BLOCK LOGIC TXOUT LPF OSC L_IN PreEmphasis MPX R_IN PreEmphasis MODADJ[3:0] fc =15 kHz AFADJ[2:0] VT 2 2 Submit Documentation Feedback IREF_FIL XTAL1 1 MPX_FIL CP XTAL OSC XTAL2 PLL PLTADJ[2:0] Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): SN761634 SN761634 www.ti.com ........................................................................................................................................................................................................ SLES226 – MAY 2008 TERMINAL FUNCTIONS TERMINAL DESCRIPTION SCHEMATIC NO. NAME 1 D4(D4) To be connected to ground in I2C mode / D4 input in parallel mode Figure 1 2 XTAL1 Crystal oscillator Figure 2 3 XTAL2 Crystal oscillator Figure 2 2 4 SDA(D0) I2C data input/output in I C mode/ D0 input in parallel mode Figure 3 5 SCL(D1) I2C clock input / D1 input in parallel mode Figure 4 6 PORT1(D2) Port 1 output in I2C mode / D2 input in parallel mode Figure 5 2 7 PORT2(D3) 8 EMTC Port 2 output in I C mode / D3 input in parallel mode Figure 5 EMTC input in parallel mode 9 VCC Power supply Figure 6 10 GND_A Analog ground 11 R_IN Audio right input Figure 7 12 L_IN Audio left input Figure 7 13 ADD_SEL(POW) I2C address select in I2C mode / TX power select in parallel mode Figure 8 14 MPX_FIL MPX PLL filter Figure 9 15 GND_RF RF ground 16 IREF_FIL Reference current filter Figure 10 2 17 BUS_SEL I C mode / Parallel mode select Figure 11 18 TX_OUT Transmitter output Figure 12 19 VCC_OSC Oscillator power supply 20 OSC 21 VT 22 GND_OSC 23 CP 24 GND_D Oscillator input Figure 13 Tuning voltage output Figure 14 Oscillator ground Charge pump output Figure 14 Digital ground 510 Ω 2 1 3 Figure 1. D4 Figure 2. XTAL1 and XTAL2 10 kΩ 10 kΩ 5 4 20 Ω 1.5 pF 1.5 pF Figure 3. SDA(D0) Figure 4. SCL(D1) Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): SN761634 3 SN761634 SLES226 – MAY 2008 ........................................................................................................................................................................................................ www.ti.com 6 7 510 Ω 60 Ω 8 Figure 5. PORT1(D2) and PORT2(D3) 12 Figure 6. EMTC 11 40 kΩ 13 Figure 7. RIN and LIN Figure 8. ADD_SEL(POW) 16 100 Ω 14 Figure 9. MPX FIL Figure 10. IREF FIL 100 kΩ 18 17 510 Ω Figure 11. BUS_SEL 4 Figure 12. TX OUT Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): SN761634 SN761634 www.ti.com ........................................................................................................................................................................................................ SLES226 – MAY 2008 23 20 21 100 kΩ Figure 13. OSC Figure 14. VT and CP Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): SN761634 5 SN761634 SLES226 – MAY 2008 ........................................................................................................................................................................................................ www.ti.com ABSOLUTE MAXIMUM RATINGS (1) over recommended operating free-air temperature range (unless otherwise noted) MIN MAX VCC Supply voltage VCC, VCC_OSC –0.3 6.0 V VIN Input voltage Other pins –0.3 VCC V TA Operating free-air temperature range –20 85 °C Tstg Storage temperature range –65 150 °C (1) UNIT 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 VCC, VCC_OSC MIN TYP 2.5 3 –20 MAX UNIT 4 V 85 °C 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. 6 Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): SN761634 SN761634 www.ti.com ........................................................................................................................................................................................................ SLES226 – MAY 2008 ELECTRICAL CHARACTERISTICS VCC = 3 V, TA = 25°C, RF frequency fRF = 98.1 MHz, BAND = 0 (USEU), TXPOW[1:0] = –7 dBm, MODADJ[3:0] = 5 dB (for 98.1 MHz), audio signal frequency fAF = 1 kHz, 100% means FM 75 kdev, BW = LPF 30 kHz, measured with typical home hi-fi tuner. (unless otherwise noted) Supply Voltages and Currents TEST CONDITIONS MIN TYP MAX VCC Supply voltage PARAMETER VCC and VCC_OSC are the same voltage 2.5 3 4 ICC Tx mode supply current 1 No L_IN, R_IN input, TXPOW[1:0] = 00, RTX = open 13 mA 12 mA 18 mA TX1 UNIT V ICC TX2 Tx mode supply current 2 No L_IN, R_IN input, TXPOW[1:0] = 00, RTX = open, DIS AFLPF = 1 ICC TX3 Tx mode supply current 3 No L_IN, R_IN input, TXPOW[1:0] = 10, RTX = 300 Ω ICC TX4 Tx mode supply current 4 No L_IN, R_IN input, TXPOW[1:0] = 11, RTX = 150 Ω 24 ICC STBY1 Standby current 1 STBY bit = 1 in I2C mode 0.1 10 µA STBY2 Standby current 2 D4, D3, D2, D1, D0 = 0, 0, 0, 0, 0 in parallel mode 0.1 10 µA TYP MAX ICC mA Crystal Oscillator PARAMETER fXTAL Crystal oscillator frequency TEST CONDITIONS MIN Crystal CL = 12.5 pF 32.768 UNIT kHz Voltage Controlled Oscillator PARAMETER fOSC TEST CONDITIONS Oscillator frequency range MIN TYP 150 MAX UNIT 217 MHz MAX UNIT Synthesizer PARAMETER N Programmable counter fREF Reference frequency for phase detector fSTEP Tuning frequency step ICP Charge pump current TEST CONDITIONS 14 bit MIN TYP 271 16383 8.192 kHz 8.192 kHz CP[1:0] = 00 0.6 CP[1:0] = 01 1.25 CP[1:0] = 10 2.5 CP[1:0] = 11 50 µA RF Power PARAMETER VTXOUT TX output power TEST CONDITIONS MIN TYP TXPOW[1:0] = 00, RTX = open, RL = 50 Ω –7 TXPOW[1:0] = 01, RTX = 300 Ω, RL = 50 Ω –3 TXPOW[1:0] = 10, RTX = 300 Ω, RL = 50 Ω 1 TXPOW[1:0] = 11, RTX = 150 Ω, RL = 50 Ω 4 MAX Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): SN761634 UNIT dBm 7 SN761634 SLES226 – MAY 2008 ........................................................................................................................................................................................................ www.ti.com AF Power PARAMETER AFADJ AF input level adjust ratio AF maximum input level (pre-emphasis 50 µs) VIMAX50 AF maximum input level (pre-emphasis 75 µs) VIMAX75 VIAF AF typical input level for 100% dev fIAFR Input frequency range RIAF AF input impedance tPRE Pre-emphasis fLPF AFLPF frequency response TEST CONDITIONS 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 mVpp AFADJ = 0 dB, EMTC = 0, fs = 10 kHz, L = R each channel 330 mVpp AFADJ = 0 dB, EMTC = 1, fs = 400 Hz, L = R each channel 1000 mVpp AFADJ = 0 dB, EMTC = 1, fs = 10 kHz, L = R each channel 200 mVpp AFADJ = 0 dB, fs = 400 Hz, DIS_EM = 0, L = R each channel 250 20 mVrms 15 k 40 EMTC bit = 0 50 EMTC bit = 1 75 DIS_AFLPF = 0, –3 dB 15 Hz kΩ µs kHz Mono Mode PARAMETER fO TEST CONDITIONS MIN TYP UNIT 15 k Hz CP = 1.25 A S/NMONO98 Mono S/N 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 60 dB THDMONO98 Mono THD 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 0.5 % S/NMONO83 Mono S/N at 83 MHz (100% modulation) L = R = 250 mVrms, fAF = 1 kHz, AFADJ = 0 dB, MODADJ = 11 dB, PLTADJ = off, MONO_ST = 1, RF = 83.0 MHz, BAND = 1 60 dB THDMONO83 Mono THD at 83 MHz (30% modulation) L = R = 75 mVrms, fAF = 1 kHz, AFADJ = 0 dB, MODADJ = 11 dB PLTADJ = off, MONO_ST = 1, RF = 83.0 MHz, BAND = 1 0.5 % ATTMT MUTE attenuation MUTE bit = 1 8 MONO Submit Documentation Feedback 20 MAX Output frequency response MONO 50 dB Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): SN761634 SN761634 www.ti.com ........................................................................................................................................................................................................ SLES226 – MAY 2008 Stereo Mode PARAMETER TEST CONDITIONS MIN TYP MAX UNIT S/NST98 Stereo S/N 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 55 dB SEPST98 Stereo separation at 98.1 MHz Main + sub = 30%, pilot = 10% L or R = 75 mVrms, fAF = 1 kHz, AFADJ = 0 dB, PLTADJ = 0 dB, MODADJ = 5 dB, fRF = 98.1 MHz, BAND = 0 30 dB THDST98 Stereo THD at 98.1 MHz Main + sub = 30%, pilot = 10% L or R = 75 mVrms, fAF = 1 kHz, AFADJ = 0 dB, PLTADJ = 0 dB, MODADJ = 5 dB, fRF = 98.1 MHz, BAND = 0 1.0 % S/NST83 Stereo S/N at 83.0 MHz Main + sub = 90%, pilot = 10% L = R = 225 mVrms, fAF = 1 kHz, AFADJ = 0 dB, PLTADJ = 0 dB, MODADJ = 11dB, fRF = 83.0 MHz, BAND = 1 55 dB SEPST83 Stereo separation at 83.0 MHz Main + sub = 30%, pilot = 10% L or R = 75 mVrms, fAF = 1 kHz, AFADJ = 0 dB, MODADJ = 11 dB, PLTADJ = 0 dB, fRF = 83.0 MHz, BAND = 1 30 dB THDST83 Stereo THD at 83.0 MHz Main + sub = 30%, pilot = 10% L or R = 75 mVrms, fAF = 1 kHz, AFADJ = 0 dB, MODADJ = 11 dB, PLTADJ = 0 dB, fRF = 83.0 MHz, BAND = 1 1.0 % DIFFST Left channel 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. –1 TEST CONDITIONS MIN MOD 1 dB Modulation PARAMETER MODRADJ Modulation adjust ratio TYP MODADJ[3:0] = 0000 (Ref.) 0 MODADJ[3:0] = 0001 1 MODADJ[3:0] = 0010 2 MODADJ[3:0] = 0011 3 MODADJ[3:0] = 0100 4 MODADJ[3:0] = 0101 5 MODADJ[3:0] = 0110 6 MODADJ[3:0] = 0111 7 MODADJ[3:0] = 1000 8 MAX UNIT dB MODADJ[3:0] = 1001 9 MODADJ[3:0] = 1010 10 MODADJ[3:0] = 1011 11 MODADJ[3:0] = 1100 12 MODADJ[3:0] = 1101 13 MODADJ[3:0] = 1110 14 MODADJ[3:0] = 1111 15 75 kHzdev MODMONO76 TX mono modulation at 76.0 MHz L = R = 250 mVrms, fAF = 1 kHz, AFADJ = 0 dB, PLTADJ = off, MONO_ST = 1, MODADJ = 13 dB, BAND = 1 MODMONO83 TX mono modulation at 83.0 MHz L = R = 250 mVrms, fAF = 1 kHz, AFADJ = 0 dB, PLTADJ = off, MONO_ST = 1, MODADJ = 11 dB, BAND = 1 75 kHzdev MODMONO90 TX mono modulation at 90.0 MHz L = R = 250 mVrms, fAF = 1 kHz, AFADJ = 0 dB, PLTADJ = off, MONO_ST = 1, MODADJ = 8 dB, BAND = 1 75 kHzdev MODMONO87 TX mono modulation at 87.5 MHz L = R = 250 mVrms, fAF = 1 kHz, AFADJ = 0 dB, PLTADJ = off, MONO_ST = 1, MODADJ = 9 dB, BAND = 0 75 kHzdev Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): SN761634 9 SN761634 SLES226 – MAY 2008 ........................................................................................................................................................................................................ www.ti.com Modulation (continued) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT MODMONO98 TX mono modulation at 98.1 MHz L = R = 250 mVrms, fAF = 1 kHz, AFADJ = 0 dB, PLTADJ = off, MONO_ST = 1, MODADJ = 5 dB, BAND = 0 75 kHzdev MODMONO108 L = R = 250 mVrms, fAF = 1 kHz, TX mono modulation at 108.0 MHz AFADJ = 0 dB, PLTADJ = off, MONO_ST = 1, MODADJ = 3 dB, BAND = 0 75 kHzdev MODRPLT Pilot modulation adjust ratio PLTADJ[2:0] = 000 –6 PLTADJ[2:0] = 001 –4 PLTADJ[2:0] = 010 –2 PLTADJ[2:0] = 011 (Ref.) 0 PLTADJ[2:0] = 100 2 PLTADJ[2:0] = 101 4 PLTADJ[2:0] = 110 6 dB MPLTTYP Typical pilot modulation L = R = 225 mVrms, fAF = 1 kHz, (main + sub = 90%), AFADJ = 0 dB, PLTADJ = 0 dB 10 % MPLTMIN Minimum pilot modulation L = R = 225 mVrms, fAF = 1 kHz, (main + sub = 90%), AFADJ = 0 dB, PLTADJ = –6 dB 5 % MPLTMAX Maximum pilot modulation L = R = 225 mVrms, fAF = 1 kHz, (main + sub = 90%), AFADJ = 0 dB, PLTADJ = 6 dB 20 % 10 Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): SN761634 SN761634 www.ti.com ........................................................................................................................................................................................................ SLES226 – MAY 2008 I2C MODE (BUS_SEL PIN = GND) I2C Write Data Table 1. Write Data BYTE BIT 7 (MSB) BIT 6 BIT 5 BIT 4 Address 1 1 0 0 Data 1 MUTE 0 N13 N12 Data 2 N7 N6 N5 N4 N3 Data 3 PLTADJ2 PLTADJ1 PLTADJ0 0 MONO_ST TXPOW1 TXPOW0 PORT1 Data 4 PORT2 STBY BAND MODADJ3 MODADJ2 MODADJ1 MODADJ0 DIS_AFLPF Data 5 DIS_EM EMTC 0 AFADJ2 AFADJ1 AFADJ0 CP1 CP0 Data 6 (1) BIT 3 (reserved) BIT 2 BIT 1 BIT 0 (LSB) 0 1 AS 0 N11 N10 N9 N8 N2 N1 N0 (1) Do not write any data on reserved area. The data of this area is loaded at power-on reset. Write Data Symbol Description SYMBOL AS MUTE N13–N0 PLTADJ2, PLTADJ1, PLTADJ0 DESCRIPTION 0: ADD_SEL(POW) pin GND 1: ADD_SEL(POW) pin Open 0 Mute control bit 0: Mute off 1: Mute on 0 Programmable counter bits Set main counter Pilot level adjust bits MONO_ST Mono/stereo switch TXPOW1, TXPOW0 TX power level selection bits PORT1, PORT2 DEFAULT Address select bit all 0 PLTADJ2 PLTADJ1 PLTADJ0 Level 0 0 0 –6 dB 0 0 1 –4 dB 0 1 0 –2 dB 0 1 1 0 dB 1 0 0 2 dB 1 0 1 4 dB 1 1 0 6 dB 1 1 1 pilot off 0: 38 kHz sub carrier on 1: 38 kHz sub carrier off For mono mode, PLTADJ bits have to be set as “PLTADJ[2:0]=111” TXPOW1 TXPOW0 Level 0 0 –7 dBm 0 1 –3 dBm 1 0 1 dBm 1 1 4 dBm 0, 1, 1 0 0, 0 Port control bits PORT1, 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 bit 0: US/EU band (87.5 MHz to 108 MHz) 1: Japan band (76 MHz to 90 MHz) 0 Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): SN761634 11 SN761634 SLES226 – MAY 2008 ........................................................................................................................................................................................................ www.ti.com Write Data Symbol Description (continued) SYMBOL MODADJ3– MODADJ0 DIS_AFLPF DIS_EM EMTC AFADJ2, AFADJ1, AFADJ0 CP1, CP0 12 DESCRIPTION Modulation adjust bits DEFAULT MODADJ3 MODADJ2 MODADJ1 MODADJ0 Total Composite Level 0 0 0 0 0 dB 0 0 0 1 1 dB 0 0 1 0 2 dB 0 0 1 1 3 dB 0 1 0 0 4 dB 0 1 0 1 5 dB 0 1 1 0 6 dB 0 1 1 1 7 dB 1 0 0 0 8 dB 1 0 0 1 9 dB 1 0 1 0 10 dB 1 0 1 1 11 dB 1 1 0 0 12 dB 1 1 0 1 13 dB 1 1 1 0 14 dB 1 1 1 1 15 dB Disable 15 kHz LPF 0: AF 15-kHZ LPF enable 1: AF 15-kHZ LPF disable 0 Disable pre-emphasis bit 0: De-emphasis on 1: De-emphasis off 0 Time constant control bit for pre-emphasis 0: 50 µs 1: 75 µs 1 AF level adjust bits CP current selection bits AFDJ2 AFDJ1 AFDJ0 Level 0 0 0 –9 dB 0 0 1 –6 dB 0 1 0 –3 dB 0 1 1 0 dB 1 0 0 3 dB 1 0 1 6 dB 1 1 0 9 dB 1 1 1 12 dB CP1 CP0 CP Current 0 0 0.6 µA 0 1 1.25 µA 1 0 2.5 µA 1 1 50 µA Submit Documentation Feedback 0, 1, 1 1, 0 Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): SN761634 SN761634 www.ti.com ........................................................................................................................................................................................................ SLES226 – MAY 2008 PLL Setting in I2C Mode Calculation of N13–N0 14-bit word (NPLL) can be done as follows: fRF = desired tuning frequency fXTAL = crystal frequency (32.768 kHz) NPLL = 4 X fRF fXTAL Example: fRF = 88.0 M NPLL = 4 X 88.0 M = 10742 32.768 kHz The PLL word becomes 29F6h (N13, N12, N11, N10, N9, N8, N7, N6, N5, N4, N3, N2, N1, N0 = 10 1001 1111 0110). Initial setting 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 dBm, antenna load 50 Ω add pullup resistance RTX 300 Ω TXPOW = 4 dBm, antenna load 50 Ω add pullup resistance RTX 150 Ω To Use External XTAL Signal To use external signal instead of XTAL oscillation, pin assignment is as follows: • XTAL1 (pin 9): OPEN • XTAL2 (pin 10): signal input with coupling capacitor Input signal wave should be sine wave or square wave, acceptable amplitude ranges are: • Sine wave: 500 mVpp to 2 Vpp • Rectangle (square) wave: 200 mVpp to 2 Vpp Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): SN761634 13 SN761634 SLES226 – MAY 2008 ........................................................................................................................................................................................................ www.ti.com PARALLEL MODE (BUS_SEL PIN = OPEN) Channel/Standby Setting in Parallel Mode CHANNEL SETTING NO. D4 D3 D2 D1 D0 FREQUENCY (MHz) OR STANDBY MODADJ SETTING 0 0 0 0 0 0 standby 9 1 0 0 0 0 1 87.7 9 2 0 0 0 1 0 87.9 9 3 0 0 0 1 1 88.1 9 4 0 0 1 0 0 88.3 9 5 0 0 1 0 1 88.5 9 6 0 0 1 1 0 88.7 9 7 0 0 1 1 1 88.9 3 8 0 1 0 0 0 106.7 3 9 0 1 0 0 1 106.9 3 10 0 1 0 1 0 107.1 3 11 0 1 0 1 1 107.3 3 12 0 1 1 0 0 107.5 3 13 0 1 1 0 1 107.7 3 14 0 1 1 1 0 107.9 3 15 0 1 1 1 1 standby 3 16 1 0 0 0 0 standby 13 17 1 0 0 0 1 76.8 13 18 1 0 0 1 0 77.0 13 19 1 0 0 1 1 77.2 13 20 1 0 1 0 0 77.4 13 21 1 0 1 0 1 77.6 13 22 1 0 1 1 0 77.8 13 23 1 0 1 1 1 78.0 13 24 1 1 0 0 0 88.0 9 25 1 1 0 0 1 88.2 9 26 1 1 0 1 0 88.4 9 27 1 1 0 1 1 88.6 9 28 1 1 1 0 0 88.8 9 29 1 1 1 0 1 89.0 9 30 1 1 1 1 0 89.2 9 31 1 1 1 1 1 standby 9 14 Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): SN761634 SN761634 www.ti.com ........................................................................................................................................................................................................ SLES226 – MAY 2008 TX Power Setting in Parallel Mode ADD_SEL(POW) PIN TX POWER Open 4 dBm 330 kΩ ±20% pulldown 1 dBm 100 kΩ ±20% pulldown –3 dBm GND –7 dBm Pre-Emphasis Setting in Parallel Mode EMTC PIN PRE-EMPHASIS TIME CONSTANT Open 75 µs GND 50 µs Other settings used are "default" value in Table 1. Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): SN761634 15 SN761634 SLES226 – MAY 2008 ........................................................................................................................................................................................................ www.ti.com APPLICATION INFORMATION VCC GND BB202 22 kΩ 1000 pF 24 nH 1000 pF POW depended on +4 dBm : 150 on +1 dBm : 330 on –3 dBm : 330 on –7 dBm : Open 23 22 21 20 19 CP GND_OSC VT OSC VCC_OSC 1 24 GND_D 0.47 μF TX_OUT D4 18 TX_OUT 2 XTAL1 3 XTAL2 BUS_SEL 17 IREF_FIL 16 BUS_SEL 2 Short : I C 32.768 kΩ SN761634 RTW 0.01 μF SDA(D0) 4 SDA(D0) GND_RF 15 SCL(D1) 5 SCL(D1) MPX_FIL 14 0.01 μF GND_A R_IN L_IN ADD_SEL(POW) VCC PORT1(D2) EMTC 6 PORT2(D3) PORT1(D2) 7 8 9 10 11 12 13 2 I C address Short 11000100 Open 11000110 PORT2(D3) L_IN EMTC R_IN A. Pin 1 (D4) input connects to GND. Figure 15. I2C Mode Application NOTE: This application information is advisory and 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. 16 Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): SN761634 SN761634 www.ti.com ........................................................................................................................................................................................................ SLES226 – MAY 2008 VCC GND BB202 22 kΩ 1000 pF 24 nH 1000 pF POW depended on +4 dBm : 150 on +1 dBm : 330 on –3 dBm : 330 on –7 dBm : Open 23 22 21 20 19 CP GND_OSC VT OSC VCC_OSC 1 24 GND_D 0.47 μF TX_OUT D4 18 TX_OUT 2 XTAL1 3 XTAL2 BUS_SEL 17 IREF_FIL 16 32.768 kΩ SN761634 RTW BUS_SEL Open : Parallel 0.01 μF SDA(D0) 4 SDA(D0) GND_RF 15 SCL(D1) 5 SCL(D1) MPX_FIL 14 0.01 μF GND_A R_IN L_IN ADD_SEL(POW) VCC PORT1(D2) EMTC 6 PORT2(D3) PORT1(D2) 7 8 9 10 11 12 13 POW +4 dBm : Open +1 dBm : 330 kΩ –3 dBm : 100 kΩ –7 dBm : Short PORT2(D3) L_IN EMTC R_IN Figure 16. Parallel Mode Application NOTE: This application information is advisory and 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. Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): SN761634 17 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. 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