TEA6842H Ver la hoja de datos (PDF) - Philips Electronics

Número de pieza

componentes Descripción

Lista de partido

TEA6842H

New In Car Entertainment (NICE) extended car radio

Philips Electronics 

Philips Semiconductors

New In Car Entertainment (NICE)

extended car radio

Product specification

TEA6842H

6 PINNING

SYMBOL

FMLIMDEC

FMLIMIN

AMIF2DEC

IFAMP2OUT

AMNBHOLD

AMIF2IN

IF1GND

IFAMP2IN

Coffset

IMUTEREF

IFAMP2DEC

IFAMP1OUT

n.c.

IFAMP1IN

n.c.

VDDA1

IFAMP1DEC

MIX1OUT1

MIX1OUT2

VDDA2

AMAGCBUF

AMMIX1IN2

AMMIX1IN1

n.c.

n.c.

T1AMAGC

T2AMAGC

IAMAGC

Vref(FMMIX)

FMMIXIN1

RFGND

n.c.

FMMIXIN2

WBSW

IFMAGC

T2FMAGC

T1FMAGC

DAAOUT

DAATD

DAAIN

2003 Dec 19

PIN

DESCRIPTION

1 FM limiter decoupling

2 FM limiter input (10.7 MHz)

3 decoupling for AM IF2 input

4 IF amplifier 2 output (10.7 MHz)

5 AM noise blanker threshold

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

7 AM IF1 ground

8 IF amplifier 2 input (10.7 MHz)

9 DC feedback for offset compensation RDS mute

10 mute reference current output for testing

11 IF amplifier 2 decoupling and AGC capacitor for AM noise blanker

12 IF amplifier 1 output (10.7 MHz)

13 not connected

14 IF amplifier 1 and AM mixer 2 input (10.7 MHz)

15 not connected

16 analog supply voltage 1 (8.5 V) for IF amplifier 1 and 2

17 AM mixer 2 and FM IF amplifier 1 decoupling

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

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

20 analog supply voltage 2 (8.5 V) for FM mixer and AM mixer 1

21 buffer output of AM AGC voltage

22 AM mixer 1 input 2

23 AM mixer 1 input 1

24 not connected

25 not connected

26 1st time constant of AM front-end AGC

27 2nd time constant of AM front-end AGC

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

29 reference voltage for FM I/Q mixer

30 FM RF mixer input 1

31 RF ground

32 not connected

33 FM RF mixer input 2

34 buffered weather band flag output

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

36 2nd time constant of FM front-end AGC

37 1st time constant of FM front-end AGC

38 output of digital auto alignment circuit for antenna tank circuit

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

40 input of digital auto alignment circuit for antenna tank circuit

6

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