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PDF NJW1321 Data sheet ( Hoja de datos )
| Número de pieza | NJW1321 | |
| Descripción | Video Switch / QFP48-P1 | |
| Fabricantes | JRC | |
| Logotipo |  |
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NJW1321
WIDE BAND VIDEO SWITCH WITH I2C BUS
s GENERAL DESCRIPTION
The NJW1321 is a Wide Band Video Switch with I2C BUS.
The NJW1321 includes switch of 4-input 2-output and 6dB
amplifier. It is suitable for RGB or Y, Pb, and Pr signal because
frequency range is 100MHz.
The NJW1321 includes external logic control terminals and
external logic discernment terminals.
The NJW1321 is suitable for PTV, DTV, PDP and other high quality
AV systems.
s PACKAGE OUTLINE
NJW1321FP1
s FEATURES
q Operating Voltage
q I2C BUS Interface
+9.0V
q 4-input 2-output 3-Circuits
q Wide frequency range
0dB at 100MHz typ.
-3dB at 300MHz typ.
q Internal 6dB amplifier (Selectable Bypass or 6dB)
q External logic discernment terminal
q External logic control terminal
q Selectable slave address
q Power Save Circuit
q Bi-CMOS Technology
q Package Outline
QFP48
s BLOCK DIAGRAM
Y/R IN1
Y/R IN2
Y/R IN3
Y/R IN4
6dB Y/R OUT1
6dB Y/R OUT2
Pb/G IN1
Pb/G IN2
Pb/G IN3
Pb/G IN4
6dB Pb/G OUT1
6dB Pb/G OUT2
Pr/B IN1
Pr/B IN2
Pr/B IN3
Pr/B IN4
PORT 0
PORT 1
PORT 2
PORT 3
V+
GND
VREF
BIAS
6dB
6dB
I2C BUS
Pr/B OUT1
Pr/B OUT2
ADDRESS
SDA
SCL
AUX 0
AUX 1
AUX 2
AUX 3
DGND
Ver.5
-1-
1 page  
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sEQUIVALENT CIRCUIT
PIN No.
NAME
6 Y IN1
8 Pb IN1
10 Pr IN1
48 Y IN2
2 Pb IN2
4 Pr IN2
42 Y IN3
44 Pb IN3
46 Pr IN3
36 Y IN4
38 Pb IN4
40 Pr IN4
FUNCTION
Y,Pb,Pr Input
RGB Input
34 Y OUT1
32 Pb OUT1
30 Pr OUT1
27 Y OUT2
24 Pb OUT2
21 Pr OUT2
Y,Pb,Pr Output
RGB Output
23 PORT0
22
13
PORT1
PORT2
Logic input terminal
12 PORT3
NJW1321
INSIDE EQUIVALENT CIRCUIT
V+ V+ V+
VOLTAGE
150kΩ 100Ω
4.4V
V+ V+
50Ω
V+ V+
66Ω
100kΩ
3.7V
-
25 AUX0
26
AUX1
Auxiliary 3 values voltage
28 AUX2
output terminal
29 AUX3
V+ V+ V+
1kΩ
66Ω
0V
1.9V
5.0V
-5-
5 Page 
www.DataSheet4U.com
sAPPLICATION CIRCUIT
NJW1321
Pb IN4
75Ω
Y IN4
75Ω
Y OUT1
Pb OUT1
Pr OUT1 AUX3 AUX2 Y OUT2 AUX1 AUX0
10kΩ 10kΩ
10kΩ 10kΩ
1uF +
0.1uF
1uF +
0.1uF
10uF + 0.1uF 10uF + 0.1uF 10uF + 0.1uF
10uF + 0.1uF
38 37 36 35 34 33 32 31 30 29 28 27 26 25
39 24
Pr IN4
75Ω
1uF
+ 40
0.1uF
41
23
22
+ 10uF
0.1uF
PORT0
PORT1
Y IN3
1uF
+ 42
75Ω 0.1uF
43
Pb IN3
75Ω
1uF
+ 44
0.1uF
45
Pr IN3
75Ω
1uF+ 46
0.1uF
47
NNJJWW11332210
21 + 10uF
0.1uF
20
19
+
1uF
18
17
16 SDA
Y IN2
75Ω
1uF+
0.1uF
48
1
V+
2
+
1uF
34
+
0.1uF 1uF
5
0.1uF
75Ω
Pb IN2
75Ω
Pr IN2
67
+
1uF
0.1uF
75Ω
Y IN1
89
+
1uF
0.1uF
75Ω
Pb IN1
15
10 11 12 13 14
+
1uF
0.1uF
75Ω
Pr IN1
PORT3 PORT2 ADR
SCL
Pb OUT2
Pr OUT2
+
100uF 0.1uF
- 11 -
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet NJW1321.PDF ] | |
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