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1 2 VCOTANK1

3 4 CPOUT VCOTANK2 VCC(VCO)

5 6

7 8 DATA VCCD DGND CLOCK AGC programmable divider output reference frequency divider output TUNING SYSTEM 4.7 nF

47 nF

47 nF

33 nF

19 18

17 LIMDEC2 LIMDEC1 TIFC Vref MPXO TMUTE VAFR VAFL

16 15

14 13

12 11

10 BUSENABLE BUSMODE SWPORT1 SWPORT2 XTAL1 XTAL2 PHASEFIL PILFIL

9 SDS

33 nF

1 nF

22 nF

22 nF Ccomp (1) Cpull (1) 32.768 kHz or

13 MHz

33 k?

10 k?

10 k?

47 nF VCO

39 nF

10 nF R1 4.7 ?

100 k?

10 k?

47 ? VCC(VCO)

12 ?

22 nF D1 L3 D2 L2

22 nF LEVEL ADC IF COUNTER LIMITER DEMODULATOR Iref RESONANCE AMPLIFIER SOFTWARE PROGRAMMABLE PORT MUX I2C-BUS VCCD GAIN STABILIZATION POWER SUPPLY SOFT MUTE MPX DECODER CRYSTAL OSCILLATOR TEA5768HL VCCA ÷2 N1 pilot mono Fig.1 Block diagram. The component list is given Chapter 14. (1) Ccomp and Cpull data depends on crystal specification.

2004 Sep

13 6 Philips Semiconductors Product speci?cation Low-power FM stereo radio for handheld applications TEA5768HL

6 PINNING SYMBOL PIN DESCRIPTION CPOUT

1 charge pump output of synthesizer PLL VCOTANK1

2 voltage controlled oscillator tuned circuit output

1 VCOTANK2

3 voltage controlled oscillator tuned circuit output

2 VCC(VCO)

4 voltage controlled oscillator supply voltage DGND

5 digital ground VCCD

6 digital supply voltage DATA

7 bus data line input/output CLOCK

8 bus clock line input BUSMODE

9 bus mode select input BUSENABLE

10 bus enable input SWPORT1

11 software programmable port

1 SWPORT2

12 software programmable port

2 XTAL1

13 crystal oscillator input

1 XTAL2

14 crystal oscillator input

2 PHASEFIL

15 phase detector loop ?lter PILFIL

16 pilot detector low-pass ?lter VAFL

17 left audio frequency output voltage VAFR

18 right audio frequency output voltage TMUTE

19 time constant for soft mute MPXO

20 FM demodulator MPX signal output Vref

21 reference voltage TIFC

22 time constant for IF centre adjust LIMDEC1

23 decoupling IF limiter

1 LIMDEC2

24 decoupling IF limiter

2 Igain

25 gain control current for IF ?lter AGND

26 analog ground VCCA

27 analog supply voltage RFI1

28 RF input

1 RFGND

29 RF ground RFI2

30 RF input

2 TAGC

31 time constant RF AGC LOOPSW

32 switch output of synthesize........