BA7657F 데이터 시트보기 (PDF) - ROHM Semiconductor
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BA7657F Datasheet PDF : 17 Pages
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High-performance Video Signal Switchers
Ultra Wide Band
Triple Circuits Video Signal Switchers
BA7657F,BH7659FS
No.11066EAT03
●Description
The BA7657F, and BH7659FS are ICs that have been developed for use in PC monitors, HDTVs (high definition televisions),
and other high-resolution display devices. In addition to their wide-range switching circuits for RGB signals, HD signals,
and VD signals, the A7657F feature a separation (BUNRI) circuit for the synchronization signal that is superposed on the
G signal, while the BH7659FS features an on-chip switch for I2C bus signals (SDA and SCL). These ICs can be used to
simplify the input block configuration in advanced display devices.
●Features
1) Operates on 5 V single power supply.
2) Built-in wide-range RGB signal switches. (BA7657F :fc = 230 MHz)
(BH7659FS:fc = 250 MHz)
3) Built-in switching circuit for HD signal and VD signal.
4) Built-in separation (BUNRI) circuit for synchronization signal superposed on G signal.
5) Built-in switch for I2C bus signals (SDA and SCL). (BH7659FS)
6) Built-in power saving function. (BH7659FS)
(BA7657F)
●Applications
PC monitors, Plasma displays, LCD monitors, and Other devices that use wide-range RGB signal switching.
●Line up matrix
Parameter
BA7657F
BH7659FS
Circuit current (mA)
35
25
Circuit current during low-power mode (mA)
RGB signal SW block frequency
characteristics (MHz)
Synchronization signal SW block circuit
configuration
Synchronization signal separation circuit
－
230
2 digital switching circuits
✔
14
250
4 CMOS analog switching circuits
－
Package
SOP24
SSOP-A32
●Absolute Maximum Ratings(Ta=25℃)
Parameter
Symbol
Ratings
Unit
Supply voltage
VCC
8.0
V
Power dissipation
BA7657F
BH7659FS
Pd
550
mW
800
Operating temperature
Topr
-25～+75
℃
Storage temperature
Tstg
-55～+125
℃
※Deratings is done at 5.5mW/℃ (BA7657F), 8mW/℃ (BA7659FS) above Ta=25℃.
●Operating Range(Ta=25℃)
Parameter
Symbol
Min.
Ratings
Typ. Max.
Unit
Supply voltage
VCC
4.5
5.0
5.5
V
※This product is not designed for protection against radioactive rays.
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© 2011 ROHM Co., Ltd. All rights reserved.
1/16
2011.04 - Rev.A
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