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PDF NJW1340 Data sheet ( Hoja de datos )
| Número de pieza | NJW1340 | |
| Descripción | Video Switch / SSOP32 | |
| Fabricantes | JRC | |
| Logotipo |  |
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NJW1340
VIDEO SWITCH FOR DVD RECORDER
s GENERAL DESCRIPTION
The NJW1340 is a video switch for DVD recorders corresponding to
the composite signal and Y/C signal.
It contains synchronous separation circuit and synchronous signal
detection circuit, which are operating constantly. Therefore, It can detect
a signal at the state of power save mode.
s PACKAGE OUTLINE
NJW1340V
s FEATURES
q Operating Voltage
q I2C BUS Interface
4.5 to 5.5V
q 5-input 1-output video switch
q 3-input 1-output 2-circuit video switch
q 6th order Low Pass Filter
q Internal synchronous separation circuit
q Internal synchronous signal detection circuit
q Power Save Circuit
q Bi-CMOS Technology
q Package Outline
SSOP32
s BLOCK DIAGRAM
C IN 1
VCC 1
C IN 2
Power Save
C IN 3
GND
Y IN 1
GND
Y IN 2
GND
Y IN 3
GND
CVBS IN 1
GND
CVBS IN 2
DET SW
CVBS IN 3
GND
CVBS IN 4
VCC 2
CVBS IN 5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
BIAS
BIAS
BIAS
CLAMP
CLAMP
CLAMP
CLAMP
CLAMP
CLAMP
CLAMP
CLAMP
SCL SDA ADDRESS
28 27 26
I2C BUS
LPF
LPF
31 OUT 2
30 GND
29 OUT 1
Sync
Sepa
25
CLAMP
24
CLAMP
Sync
Detect
23 22
32 DET OUT
Ver.5
-1-
1 page  
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EQUIVALENT CIRCUIT
No. SYMBOL
FUNCTION
Chroma signal input
1 CIN1
3 CIN2
5 CIN3
NJW1340
INSIDE EQUIVALENT CIRCUIT
VOLTAGE
20kΩ
200Ω
2.8V
Y signal input,
YIN1 correspond to the
7
YIN1
synchronous detection at
9
YIN2
the power saving mode.
11 YIN3
Composite video signal
13 CVBSIN1 input,
15 CVBSIN2 CVBSIN1 correspond to
17 CVBSIN3 the synchronous detection
19 CVBSIN4 at the power saving mode.
21 CVBSIN5
Power Save control
4
POWER
SAVE
200Ω
2.5V
16kΩ
34kΩ
Signal detection control, Y
IN1 or CVBS IN1
16 DETSW
8kΩ
40kΩ
-5-
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet NJW1340.PDF ] | |
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