TEA6845AH Просмотр технического описания (PDF) - Philips Electronics

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TEA6845AH

New In Car Entertainment (NICE) car radio

Philips Electronics 

Philips Semiconductors

New In Car Entertainment (NICE) car radio

Product specification

TEA6845AH; TEA6845H

6 PINNING

SYMBOL

CAGC

FMLIMDEC

FMLIMIN

AMIF2DEC

IFAMP2OUT

AMNBHOLD

AMIF2IN

IF1GND

IFAMP2IN

Coffset

IFAMP2DEC

IFAMP1OUT

IFAMP1IN

VDDA6

IFAMP1DEC

MIX1OUT1

MIX1OUT2

VDDA5

AMMIX1IN2

AMMIX1IN1

T1AMAGC

T2AMAGC

IAMAGC

Vref(FMMIX)

FMMIXIN1

RFGND

FMMIXIN2

IFMAGC

T2FMAGC

T1FMAGC

DAAOUT

DAATD

DAAIN

Vtune

CPOUT

VDDA4

fref

VDDD

DGND

VCOGND

2001 Apr 12

PIN

DESCRIPTION

1 AMIFAGC capacitor

2 FM limiter decoupling

3 FM limiter input (10.7 MHz)

4 decoupling for AM IF2 input

5 IF amplifier 2 output (10.7 MHz)

6 AM noise blanker hold output

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

8 AM IF1 ground

9 IF amplifier 2 input (10.7 MHz)

10 DC feedback for offset compensation RDS mute

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

12 IF amplifier 1 output (10.7 MHz)

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

14 analog supply voltage 6 (8.5 V) for IF amplifier 1 and 2

15 AM mixer 2 and FM IF amplifier 1 decoupling

16 FM mixer and AM mixer 1 IF output high (10.7 MHz)

17 FM mixer and AM mixer 1 IF output low (10.7 MHz)

18 analog supply voltage 5 (8.5 V) for FM mixer and AM mixer 1

19 AM mixer 1 input 2

20 AM mixer 1 input 1

21 1st time constant output of AM front-end AGC

22 2nd time constant of AM front-end AGC

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

24 reference voltage for FM mixer

25 input 1 of FM RF mixer

26 RF ground

27 input 2 of FM RF mixer

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

29 2nd time constant of FM front-end AGC

30 1st time constant of FM front-end AGC

31 output of digital alignment circuit for antenna tank circuit

32 temperature compensation diode of digital auto alignment circuit for antenna tank circuit

33 input of digital auto alignment circuit for antenna tank circuit

34 tuning voltage

35 charge pump output

36 analog supply voltage 4 (8.5 V) for tuning PLL

37 reference frequency output for signal processor IC

38 digital supply voltage (5 V)

39 digital ground

40 VCO ground

6

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