TEA6849H Просмотр технического описания (PDF) - Philips Electronics

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TEA6849H

New In Car Entertainment car radio tuner IC with Precision Adjacent Channel Suppression (NICE-PACS)

Philips Electronics 

Philips Semiconductors

New In Car Entertainment car radio tuner IC with

Precision Adjacent Channel Suppression (NICE-PACS)

Product specification

TEA6849H

6 PINNING

SYMBOL

PIN

DESCRIPTION

FMLIMDCFDB1 1 decoupling in-phase FM limiter

FMLIMDCFDB2 2 decoupling quadrature phase FM limiter

AMIF2DEC

3 decoupling for AM IF2 input

IREFFMIF2

4 reference current for FM IF2

AMNBHOLD

5 AM noise blanker threshold

AMIF2IN

6 AM IF2 input (450 kHz) for demodulator AGC and AM level detector

IF1GND

7 AM IF1 ground

FMMIX2IN

8 FM mixer 2 input

COFFSET

9 DC feedback for offset compensation RDS mute

FMMIX2DEC

10 FM mixer 2 decoupling

IFCDAATEST

11 test pin for IF centre DAA

IFAMPOUT

12 IF amplifier output (10.7 MHz)

VDDA1

IFAMPIN

13 analog supply voltage 1 (8.5 V) for FM IF amplifier

14 FM IF amplifier and AM mixer 2 input (10.7 MHz)

IFAMPDEC

15 FM IF amplifier and AM mixer 2 decoupling

IF2FILQ

16 test output quadrature phase FM IF2 filter; time constant FM soft mute

IF2FILI

17 test output in-phase FM IF2 filter

MIX1OUT1

18 FM mixer and AM mixer 1 IF output 1 (10.7 MHz)

MIX1OUT2

19 FM mixer and AM mixer 1 IF output 2 (10.7 MHz)

VDDA2

SWFLAG

20 analog supply voltage 2 (8.5 V) for FM and AM RF

21 output software programmable flag

AMMIX1DEC

22 AM mixer 1 decoupling

AMMIX1IN

23 AM mixer 1 input

VAMCASFB

24 feedback for cascode AM AGC

VAMCAS

25 cascode AM AGC

TAFAMAGC

26 AF time constant of AM front-end AGC

THFAMAGC

27 HF time constant of AM front-end AGC

IAMAGC

28 PIN diode drive current output of AM front-end AGC

Vref(MIX)

FMMIXIN1

29 reference voltage for FM RF mixer

30 FM RF mixer input 1

RFGND

31 RF ground

i.c.

32 internal connection

FMMIXIN2

33 FM RF mixer input 2

WBFLAG

34 buffered weather band flag output

IFMAGC

35 PIN diode drive current output of FM front-end AGC

TFMAGC

36 time constant of FM front-end AGC

TKEYEDAGC

37 time constant of keyed FM front-end AGC

DAAOUT

38 output of digital auto alignment circuit for antenna tank circuit

DAATD

39 temperature compensation diode for digital auto alignment circuit for antenna tank circuit

DAAIN

40 input of digital auto alignment circuit for antenna tank circuit

2003 Dec 19

6

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