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PDF NJW1320 Data sheet ( Hoja de datos )
| Número de pieza | NJW1320 | |
| Descripción | Video Switch / QFP48-P1 | |
| Fabricantes | JRC | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de NJW1320 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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NJW1320
WIDE BAND VIDEO SWITCH WITH I2C BUS
s GENERAL DESCRIPTION
The NJW1320 is a Wide Band Video Switch with I2C BUS.The
NJW1320 includes switch of 4-input 3-output and 6dB amplifier. It is
suitable for Y, Pb, and Pr signal because frequency range is
50MHz.The NJW1320 includes external logic control terminals and
external logic discernment terminals. The NJW1320 is suitable for
PTV, DTV, PDP and other high quality AV systems.
s FEATURES
q Operating Voltage
9.0V
q 4-input 3-output 3-Circuits (Y, Pb, and Pr signal)
q Wide frequency range
0dB at 50MHz 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 I2C BUS control
q Bi-CMOS Technology
q Package Outline
QFP48
s BLOCK DIAGRAM
Y IN1
Y IN2
Y IN3
Y IN4
6dB
6dB
Pb IN1
Pb IN2
Pb IN3
Pb IN4
6dB
6dB
6dB
Pr IN1
Pr IN2
Pr IN3
Pr IN4
6dB
6dB
6dB
PORT 0
PORT 1
PORT 2
PORT 3
VCC
GND
VREF
BIAS
6dB
I2C BUS
sPACKAGE OUTLINE
NJW1320FP1
Y OUT1
Y OUT2
Y OUT3
Pb OUT1
Pb OUT2
Pb OUT3
Pr OUT1
Pr OUT2
Pr OUT3
ADDRESS
SDA
SCL
AUX 0
AUX 1
AUX 2
AUX 3
DGND
Ver.8
-1-
1 page  
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s TERMINAL DESCRIPTION
No. SYMBOL
FUNCTION
9 Y1 IN
11 Pb1 IN
13 Pr1 IN
3 Y2 IN
5 Pb2 IN
7
Pr2 IN
Component signal
45 Y3 IN
input terminal
47 Pb3 IN
1 Pr3 IN
39 Y4 IN
41 Pb4 IN
43 Pr4 IN
18 PORT0
17
PORT1
Logic input terminal
16 PORT2
15 PORT3
NJW1320
EQUIVALENT CIRCUIT
Y1 IN
Y2 IN
Y3 IN
Y4 IN
Pb1 IN
Pb2 IN
Pb3 IN
Pb4 IN
Pr1 IN
Pr2 IN
Pr3 IN
V+ V+ V+
150kΩ 100Ω
PORT0
PORT1
PORT2
PORT3
V+ V+
66Ω
100kΩ
VOLTAGE
4.4V
-
Reference voltage
VREF
19 VREF
terminal
V+ V+ V+
66Ω
48kΩ
5.0V
2
4
6
8
10
12
14
20
GND
38
40
42
46
48
21 DGND
Ground terminal
Ground terminal
-
-
-5-
5 Page 
www.DataSheet4U.com
sAPPLACATION CIRCUIT
NJW1320
Y1 OUT
Pr1 OUT
Y2 OUT
Pr2 OUT
Y3 OUT
Pr3 OUT
AUX0
V+
Pb1 OUT
AUX3
Pb2 OUT
AUX2
Pb3 OUT
AUX1
R13
10kΩ
R14
10kΩ
R15
10kΩ
R47
10kΩ
R16
10kΩ
R17
10kΩ
R18
10kΩ
R48
10kΩ
R19
10kΩ
R20
10kΩ
R21
10kΩ
R49
10kΩ
R50
10kΩ
+ C44
C45
100uF 0.1uF
C25 C26 C27 C28 C29 C30
+ 0.1uF + 0.1uF + 0.1uF
10uF
10uF
10uF
R26
1.5kΩ
R27
1.5kΩ
R28
1.5kΩ
C31 C32 C33 C34 C35 C36
+ 0.1uF + 0.1uF + 0.1uF
10uF
10uF
10uF
R29
1.5kΩ
R30
1.5kΩ
R31
1.5kΩ
C37 C38 C39 C40 C41 C42
+ 0.1uF + 0.1uF + 0.1uF
10uF
10uF
10uF
R32
1.5kΩ
R33
1.5kΩ
R34
1.5kΩ
Y4 IN
C1 1+uF
38
39
37
36
35
34
33
32
31
30
29
28
27
26
R1
50Ω/75Ω C2 0.1uF
40
25 ADR
24
SDA
23
Pb4 IN C3 1+uF
R2
41
50Ω/75Ω C4 0.1uF
42
SCL
22
21
Pr4 IN
R3
C5 1+uF
43
50Ω/75Ω C6 0.1uF
44
Y3 IN C7 1+uF
R4
45
50Ω/75Ω C8 0.1uF
46
NJW1320
20
C43
19 +
1uF
PORT0
18
PORT1
17
Pb3 IN C9 1uF
+
R5
47
50Ω/75Ω C10 0.1uF
48
1
2
+ C11
1uF
C12
0.1uF
R6
50Ω/75Ω
Pr3 IN
34 5 6 78
+ C13
1uF
C14
0.1uF
R7
50Ω/75Ω
+ C15
1uF
C16
0.1uF
R8
50Ω/75Ω
+ C17
1uF
C18
0.1uF
R9
50Ω/75Ω
Y2 IN
Pb2 IN
Pr2 IN
PORT2
16
PORT3
15
9 10 11 12 13 14
+ C19
1uF
C20
0.1uF
R10
50Ω/75Ω
+ C21
1uF
C22
0.1uF
R11
50Ω/75Ω
+ C23
1uF
C24
0.1uF
R12
50Ω/75Ω
Y1 IN
Pb1 IN
Pr1 IN
Addition of R26-R34 improves the through rate in high frequency. Resistance turns into a reference value.
- 11 -
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet NJW1320.PDF ] | |
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