BH7625KS2_05 Datasheet, PDF (1/17 Pages) Rohm – NTSC-PAL Video I/O Interface

TECHNICAL NOTE
Video/Audio Interfaces for TV and DVD Recorders
NTSC-PAL Video
I/O Interface
BH7625KS2
Ù¨Description
BH7625KS2 is a video signal selector with two built-in sync separation circuits, and two sync detector circuits. It includes
5-composit, 5-Y, 5-C, and 1-component video signal inputs that can be selected freely for each output. Additionally, The
existance of the signal outputted from outside can be judged by only this chip.
Ù¨Features
1) Built-in 5-video, 5-Y, 5-C and 1-component inputs
2) Input terminal of the S2 standard suitability
3) I²C-BUS control (High impedance when power supply off)
4) Built-in 0/3dB switch AMP㧔CVBS OUT, C OUT㧕
5) Built-in 0/6dB switch AMP㧔Y/CVBS OUT㧕
6) Built-in sync separation circuit㧔2 circuits SYNC OUT, V SYNC OUT㧕
7) Built-in sync detector circuit㧔2 circuits㧕
8) Built-in 3 LPF circuits㧔4 order + TRAP㧕
Ù¨Applications
DVD-Recorder, visual instrument, etc
٨Absolute maximum ratings (Ta=25°C)
Parameter
Symbol
Limits
Unit
Power Supply Voltage
V
7.0
V
Power dissipation
Pd
1300 㧖1
mW
Operating temperature range
Topr
-25㨪+75
°C
Storage temperature range
Tstg
-55㨪+125
°C
㧖1 Reduced by 13 mW/qC at 25qC or higher.
٨Operating range (Ta=25°C)
Parameter
Symbol
Limits
Unit
VCC1
VCC2
VCC3
Supply voltage
4.5㨪5.5
V
DVCC
SYNC VCC
VCC
Ver.B Oct.2005