TDA8722M/C2 데이터 시트보기 (PDF) - Philips Electronics

부품명

상세내역

제조사

TDA8722M/C2

I2C-bus programmable modulator for negative video modulation and FM sound

Philips Electronics 

Philips Semiconductors

I2C-bus programmable modulator for

negative video modulation and FM sound

BLOCK DIAGRAM

Product specification

TDA8722

handbook, full pagewidth

1

AUDIO

2

SOSCA

3

SOSCB

13

SDA

12

SCL

14

P0

VIDEO

19

CLAMP

CLIP

ADJUST

17

TDA8722

VIDEO AMP

AGND VDDA

18

20

VOLTAGE

REGULATOR

RFA RFB

16

15

ASYMMETRICAL

OUTPUT

BUFFER

AUDIO

FM MODULATOR

I 2C-BUS

RECEIVER

TPSG

SWITCH

TPSG on

balance test

12-BIT

DIVIDER

(N)

10 bits

PRESCALER

(8)

MIXER

PC

UHF

OSCILLATOR

6 UOSCA

5 OGND

4 UOSCB

enable/

select

LOGIC

f DIV

f ref

RF oscillator on

8

CP

PHASE

DETECTOR

CHARGE

PUMP

AMP

7

AMP

enable

11

VDDD

10

DGND

31.25 kHz

DIVIDER

(M = 128)

4 MHz

OSCILLATOR

9

XTAL

MBE401

Fig.1 Block diagram.

1998 Jun 23

4

Share Link: