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ROHM Semiconductor - Synchronization signal processor for high definition displays

Numéro de référence BA7078AS
Description Synchronization signal processor for high definition displays
Fabricant ROHM Semiconductor 
Logo ROHM Semiconductor 





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BA7078AS fiche technique
Multimedia ICs
BA7078AF/AS
Synchronization signal processor for
high definition displays
BA7078AF/AS
The BA7078AF is a synchronization signal processing LSI chip designed for multiscan high-definition displays. It
generates a synchronization signal and clamp pulse for three types of input signals: separate synchronization, composite
synchronization, and synchronization on video.
!Application
CRT displays
!Features
1) Operates on a single 5V power supply, with low power consumption.
2) Synchronization signal existence and polarity detec-tion output.
3) Adjustable clamp pulse width, allowing for the selec-tion of front or back editing.
4) Vertical synchronization separation is based on hori-zontal frequency tracking, for separation starting at 1H.
5) Minimal attached components.
!Absolute maximum ratings (Ta = 25°C)
Parameter
Symbol
Limits
Power supply voltage
Power dissipation
VCC 7.0
1 450(BA7078AF)
Pd 2 600(BA7078AS)
Operating temperature
Topr
25 to +75
Storage temperature
Tstg
55 to +125
1 Reduced by 4.5mW for each increase in Ta of 1°C over 25°C.
2 Reduced by 6.0mW for each increase in Ta of 1°C over 25°C.
Unit
V
mW
°C
°C
!Recommended operating conditions (Ta = 25°C)
Parameter
Symbol Min. Typ. Max.
Power supply voltage VCC 4.5 5.0 5.5
Unit
V
1/12

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