TEA6840 Ver la hoja de datos (PDF) - Philips Electronics

Número de pieza

componentes Descripción

Lista de partido

TEA6840

New In Car Entertainment (NICE) car radio

Philips Electronics 

Philips Semiconductors

New In Car Entertainment (NICE) car radio

Preliminary specification

TEA6840H

PINNING

SYMBOL

VDDA1

VDDA2

FMMPX

RDSMPX

AMAFIF2

TRDSMUTE

AFHOLD

AFSAMPLE

VDDA3

OSCTNK

OSCFDB

VCOGND

DGND

VDDD

fref

VDDA4

CPOUT

Vtune

DAAIN

DAATD

DAAOUT

T1FMAGC

T2FMAGC

IFMAGC

FMMIXIN1

RFGND

FMMIXIN2

Vref(FMMIX1)

IAMAGC

T2AMAGC

T1AMAGC

AMMIX1IN1

AMMIX1IN2

VDDA5

MIX1OUT1

MIX1OUT2

IFAMP1DEC

VDDA6

IFAMP1IN

IFAMP1OUT

1999 Jul 12

PIN

DESCRIPTION

1 analog supply voltage 1 (8.5 V) for on-chip power supply

2 analog supply voltage 2 (5 V) for on-chip power supply

3 FM demodulator MPX output

4 MPX for RDS decoder and signal processor (not muted)

5 AM demodulator AF output or IF2 for AM stereo (multiplexed by I2C-bus)

6 time constant for RDS update mute

7 AF hold flag output for car audio signal processor IC

8 AF sample flag output for car audio signal processor IC

9 analog supply voltage 3 (8.5 V) for VCO

10 VCO tank circuit

11 VCO feedback

12 VCO ground

13 digital ground

14 digital supply voltage (5 V)

15 reference frequency output for signal processor IC

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

17 charge pump output

18 tuning voltage

19 input of digital alignment circuit for antenna tank circuit

20 temperature compensation diode for digital alignment circuit of antenna tank circuit

21 output of digital alignment circuit for antenna tank circuit

22 1st time constant of FM front-end AGC

23 2nd time constant of FM front-end AGC

24 pin diode drive current output of FM front-end AGC

25 input 1 of FM RF mixer

26 RF ground

27 input 2 of FM RF mixer

28 reference voltage for FM mixer

29 pin diode drive current output of AM front-end AGC

30 2nd time constant of AM front-end AGC

31 1st time constant output of AM front-end AGC

32 1st AM mixer input 1

33 1st AM mixer input 2

34 analog supply voltage 5 (8.5 V) for FM and AM RF

35 1st AM/FM mixer IF (10.7 MHz) output (HIGH)

36 1st AM/FM mixer IF (10.7 MHz) output (LOW)

37 2nd AM mixer and 1st FM IF amplifier decoupling

38 analog supply voltage 6 (8.5 V) for 1st and 2nd IF amplifier

39 1st IF amplifier/2nd AM mixer (10.7 MHz) input

40 1st IF amplifier (10.7 MHz) output

6

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