NJW1303
SYNCHRONOUS SEPARATOR WITH COUNT DOWN
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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.
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PACKAGE OUTLINE
NJW1303V
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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
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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-