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NJW1303

SYNCHRONOUS SEPARATOR WITH COUNT DOWN

T

GENERAL DESCRIPTION

The NJW1303 is a synchronous separator performs

Horizontal and Vertical synchronous signal from composit video

signals. It contains count down circuit for H,V keeping high sync

separation in the weak signal. It is suitable for car navigation and

LCD TV.

T

PACKAGE OUTLINE

NJW1303V

T

FEATURES

+

摟Operating

Voltage

V =2.7V to 5.3V

+

摟Operating

Current

5mA typ. at V =5V

摟Output

for HD,VD,C sync

摟unnecessary

adjustment of oscillation frequency for internal count down circuit

摟Internal

BGP

摟Bi-CMOS

Technology

摟Package

Outline

SSOP14

T

PIN FUNCTION, BLOCK DIAGLAM

Vcc

+

14

Vcc

3

GND

13

DIGREF

6

VS

Reg

V Sync Sep

V count down

BGP Generator

H count down

4

8

5

VD

BGP

HD

7

Sync IN

2

Sync Sep

1

Phase Det

12

9

32fH VCO

10

11

SW

C Sync OUT

LPF

VCO Out

VCO

Filter 2

VCO

Filter 1

Ver.4

-1-

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