Harman Kardon AVR 1600 Service Manual page 79

AVR1600
WIDE BAND VIDEO SWITCH WITH I
GENERAL DESCRIPTION
The NJW1321 is a Wide Band Video Switch with I
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.
FEATURES
Operating Voltage
2
I C BUS Interface
4-input 2-output 3-Circuits
Wide frequency range
Internal 6dB amplifier (Selectable Bypass or 6dB)
External logic discernment terminal
External logic control terminal
Selectable slave address
Power Save Circuit
Bi-CMOS Technology
Package Outline
BLOCK DIAGRAM
2
C BUS.
+9.0V
0dB at 100MHz typ.
-3dB at 300MHz typ.
QFP48
Y/R IN1
Y/R IN2
Y/R IN3
Y/R IN4
Pb/G IN1
Pb/G IN2
Pb/G IN3
Pb/G IN4
Pr/B IN1
Pr/B IN2
Pr/B IN3
Pr/B IN4
PORT 0
PORT 1
PORT 2
2
I C BUS
PORT 3
V+
GND BIAS
VREF
PACKAGE OUTLINE
Y/R OUT1
6dB
Y/R OUT2
6dB
6dB Pb/G OUT1
6dB Pb/G OUT2
6dB Pr/B OUT1
6dB Pr/B OUT2
ADDRESS
SDA
SCL
AUX 0
AUX 1
AUX 2
AUX 3
DGND
79
harman/kardon
NJW1321
2
C BUS
NJW1321FP1
Ver.3