TDA8822M datasheet(4/28 Pages) PHILIPS

No de pièce	TDA8822M

Description	Universal I2C-bus programmable RF modulator

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Fabricant	PHILIPS [NXP Semiconductors]

Site Internet	http://www.nxp.com

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4 / 28 page

1997 Jan 08

4

Philips Semiconductors

Preliminary speciﬁcation

Universal I2C-bus programmable RF

modulator

TDA8822

BLOCK DIAGRAM

Fig.1 Block diagram.

handbook, full pagewidth

MGE674

VIDEO

PHASE

DETECTOR

VIDEO

CHARGE

PUMP

VCO

CLIP

TPSG

SWITCH

ADDER

AUDIO

CHARGE

PUMP

AUDIO

PHASE

DETECTOR

PROG.

DIVIDER

14 BITS

PROG.

DIVIDER

I2C-BUS

RECEIVER

AND

LOGIC

fdiv(audio)

fdiv(video)

fref(video)

fref(audio)

REFERENCE

DIVIDER

CRYSTAL

OSCILLATOR

PRESCALER

DIVIDE-BY-8

RF

OSCILLATOR

MIXER

OUTPUT

BUFFER

VOLTAGE

REGULATOR

CLAMP

LOOP

AMP.

SND-IF

AMP.

AUDIO

AMP.

NICAM

AMP.

VIDEO

AMP.

in-lock flag

I2C-bus control

PS

setting

sound oscillator

ON/OFF

DEV

setting

MD setting

TPSG

ON/OFF

test

frequency

setting

frequency

setting

RF oscillator

ON/OFF

test

18

19

RFA

RFB

1

VCCA

23

AGND

24

VIDEO

21

NICAM

22

AUDIO

3

PREEMPH

2

ACP

14

SCL

15

SDA

16

P0

17

TPSG

11

13

VCCD

DGND

12

XTAL

9

VVT

8

10

7

6

5

4

VCP

RFOSCD

RFOSCC

OGND

RFOSCB

RFOSCA

20

RFGND

TDA8822

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	TDA8809T	94Kb / 16P	Radial error signal processor for compact disc players November 1987
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