Datasheet TEA5767HN (NXP) - 6
| Manufacturer | NXP |
| Description | Low-power FM stereo radio for handheld applications in 40-VFQFN Exposed Pad package |
| Pages / Page | 40 / 6 — NXP Semiconductors. TEA5767HN. Low-power FM stereo radio for handheld … |
| File Format / Size | PDF / 201 Kb |
| Document Language | English |
NXP Semiconductors. TEA5767HN. Low-power FM stereo radio for handheld applications. Table 3. Pin description. Symbol. Pin
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Text Version of Document
NXP Semiconductors TEA5767HN Low-power FM stereo radio for handheld applications Table 3. Pin description
…continued
Symbol Pin Description
XTAL2 17 crystal oscillator input 2 PHASEFIL 18 phase detector loop filter PILFIL 19 pilot detector low-pass filter n.c. 20 not connected n.c. 21 not connected VAFL 22 left audio frequency output voltage VAFR 23 right audio frequency output voltage TMUTE 24 time constant for soft mute MPXO 25 FM demodulator MPX signal output Vref 26 reference voltage TIFC 27 time constant for IF center adjust LIMDEC1 28 decoupling IF limiter 1 LIMDEC2 29 decoupling IF limiter 2 n.c. 30 not connected n.c. 31 not connected Igain 32 gain control current for IF filter AGND 33 analog ground VCCA 34 analog supply voltage RFI1 35 RF input 1 RFGND 36 RF ground RFI2 37 RF input 2 TAGC 38 time constant RF AGC LOOPSW 39 switch output of synthesizer PLL loop filter n.c. 40 not connected
7. Functional description 7.1 Low-noise RF amplifier
The Low Noise Amplifier (LNA) input impedance together with the LC RF input circuit defines an FM band filter. The gain of the LNA is controlled by the RF AGC circuit.
7.2 FM mixer
The FM quadrature mixer converts the FM RF (76 MHz to 108 MHz) to an IF of 225 kHz.
7.3 VCO
The varactor tuned LC VCO provides the Local Oscillator (LO) signal for the FM quadrature mixer. The VCO frequency range is 150 MHz to 217 MHz. TEA5767HN_5 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 05 — 26 January 2007 6 of 40
Document Outline 1. General description 2. Features 3. Quick reference data 4. Ordering information 5. Block diagram 6. Pinning information 6.1 Pinning 6.2 Pin description 7. Functional description 7.1 Low-noise RF amplifier 7.2 FM mixer 7.3 VCO 7.4 Crystal oscillator 7.5 PLL tuning system 7.6 RF AGC 7.7 IF filter 7.8 FM demodulator 7.9 Level voltage generator and analog-to-digital converter 7.10 IF counter 7.11 Soft mute 7.12 MPX decoder 7.13 Signal dependent mono to stereo blend 7.14 Signal dependent AF response 7.15 Software programmable ports 7.16 I2C-bus and 3-wire bus 8. I2C-bus, 3-wire bus and bus-controlled functions 8.1 I2C-bus specification 8.1.1 Data transfer 8.1.2 Power-on reset 8.2 I2C-bus protocol 8.3 3-wire bus specification 8.3.1 Data transfer 8.3.2 Power-on reset 8.4 Writing data 8.5 Reading data 9. Internal circuitry 10. Limiting values 11. Thermal characteristics 12. Static characteristics 13. Dynamic characteristics 14. FM characteristics 15. I2C-bus characteristics 16. Test information 17. Package outline 18. Soldering 18.1 Introduction to soldering 18.2 Wave and reflow soldering 18.3 Wave soldering 18.4 Reflow soldering 19. Revision history 20. Legal information 20.1 Data sheet status 20.2 Definitions 20.3 Disclaimers 20.4 Trademarks 21. Contact information 22. Contents
…continued
Symbol Pin Description
XTAL2 17 crystal oscillator input 2 PHASEFIL 18 phase detector loop filter PILFIL 19 pilot detector low-pass filter n.c. 20 not connected n.c. 21 not connected VAFL 22 left audio frequency output voltage VAFR 23 right audio frequency output voltage TMUTE 24 time constant for soft mute MPXO 25 FM demodulator MPX signal output Vref 26 reference voltage TIFC 27 time constant for IF center adjust LIMDEC1 28 decoupling IF limiter 1 LIMDEC2 29 decoupling IF limiter 2 n.c. 30 not connected n.c. 31 not connected Igain 32 gain control current for IF filter AGND 33 analog ground VCCA 34 analog supply voltage RFI1 35 RF input 1 RFGND 36 RF ground RFI2 37 RF input 2 TAGC 38 time constant RF AGC LOOPSW 39 switch output of synthesizer PLL loop filter n.c. 40 not connected
7. Functional description 7.1 Low-noise RF amplifier
The Low Noise Amplifier (LNA) input impedance together with the LC RF input circuit defines an FM band filter. The gain of the LNA is controlled by the RF AGC circuit.
7.2 FM mixer
The FM quadrature mixer converts the FM RF (76 MHz to 108 MHz) to an IF of 225 kHz.
7.3 VCO
The varactor tuned LC VCO provides the Local Oscillator (LO) signal for the FM quadrature mixer. The VCO frequency range is 150 MHz to 217 MHz. TEA5767HN_5 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 05 — 26 January 2007 6 of 40
Document Outline 1. General description 2. Features 3. Quick reference data 4. Ordering information 5. Block diagram 6. Pinning information 6.1 Pinning 6.2 Pin description 7. Functional description 7.1 Low-noise RF amplifier 7.2 FM mixer 7.3 VCO 7.4 Crystal oscillator 7.5 PLL tuning system 7.6 RF AGC 7.7 IF filter 7.8 FM demodulator 7.9 Level voltage generator and analog-to-digital converter 7.10 IF counter 7.11 Soft mute 7.12 MPX decoder 7.13 Signal dependent mono to stereo blend 7.14 Signal dependent AF response 7.15 Software programmable ports 7.16 I2C-bus and 3-wire bus 8. I2C-bus, 3-wire bus and bus-controlled functions 8.1 I2C-bus specification 8.1.1 Data transfer 8.1.2 Power-on reset 8.2 I2C-bus protocol 8.3 3-wire bus specification 8.3.1 Data transfer 8.3.2 Power-on reset 8.4 Writing data 8.5 Reading data 9. Internal circuitry 10. Limiting values 11. Thermal characteristics 12. Static characteristics 13. Dynamic characteristics 14. FM characteristics 15. I2C-bus characteristics 16. Test information 17. Package outline 18. Soldering 18.1 Introduction to soldering 18.2 Wave and reflow soldering 18.3 Wave soldering 18.4 Reflow soldering 19. Revision history 20. Legal information 20.1 Data sheet status 20.2 Definitions 20.3 Disclaimers 20.4 Trademarks 21. Contact information 22. Contents