SAA5252T 데이터 시트보기 (PDF) - Philips Electronics

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SAA5252T

Line twenty-one acquisition and display (LITOD)

Philips Electronics 

Philips Semiconductors

Line twenty-one acquisition and display (LITOD)

Product specification

SAA5252

PINNING

SYMBOL

CVBS

I2C/DC

SDA

SCL

DR

i.c.

V

H

BLANIN

RIN

GIN

BIN

B

G

R

BLAN

RGBREF

VDD

VSS

OSCOUT

OSCIN

OSCGND

BLACK

IREF

PIN

DESCRIPTION

1 composite video input; signal should be connected via a

100 nF capacitor

2 input selects I2C or Direct Control

3 serial data port for I2C-bus or mode select input for

direct control

4 serial clock input for I2C-bus or mode select input for

direct control

5 data-ready signal to microcontroller (active-LOW) or

mode select input for direct control

6 internally connected; connect to VSS for normal

operation

7 vertical reference input for display timing

8 horizontal reference input for display timing

9 video blanking input from external OSD device

10 RED video input from external OSD device

11 GREEN video input from external OSD device

12 BLUE video input from external OSD device

13 BLUE video output

14 GREEN video output

15 RED video output

16 video blanking output

17 input voltage defining output HIGH level for RGB pins

for closed captioning output

18 +5 V supply

19 0 V ground

20 oscillator output

21 oscillator input

22 oscillator ground

23 video black level storage input; connected to VSS via

100 nF capacitor

24 reference current input; connected to VSS via 27 kΩ

resistor

CVBS 1

I 2 C/DC 2

24 IREF

23 BLACK

SDA 3

22 OSCGND

SCL 4

DR 5

i.c. 6

V7

H8

SAA5252

21 OSCIN

20 OSCOUT

19 VSS

18 V DD

17 RGBREF

BLANIN 9

RIN 10

16 BLAN

15 R

GIN 11

14 G

BIN 12

13 B

MBB622 - 1

Fig.2 Pin configuration.

1996 Jul 18

4

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