BA7149F Datasheet, PDF (1/7 Pages) Rohm – Electronic viewfinder driver

Video ICs
Electronic viewfinder driver
BA7149F
The BA7149F is an electronic viewfinder driver for video cameras. It separates the synchronous signal from the input
video signal, and outputs the vertical deflection drive output and horizontal deflection signals. HD and VD output sig-
nals with guaranteed phase difference are also provided for on-screen displays (OSD). The differences between the
BA7149F and the BA7148F are the horizontal blanking, horizontal AFC output, HD output phase and pulse width.
•^Applications
Video cameras
•^Features
1) Operates off a 5V power supply.
2) Built-in vertical deflection circuit.
3) Built-in wide-bandwidth amplifier.
4) Built-in HD and VD output terminals.
5) Few attached components required.
6) SOP 16pin package.
7) Compatible with 10µ sec flyback pulses.
•^{Absolute maximum ratings (Ta = 25°C)}
Parameter
Symbol
Limits
Unit
Applied voltage
Power dissipation
VCC Max.
Pd
8.0
500^∗
V
mW
Operating temperature
Topr
– 20 ~ + 75
°C
Storage temperature
Tstg
– 55 ~ + 125
°C
∗ Reduced by 5mW for each increase in Ta of 1°C over 25°C.
•^{Recommended operating conditions (Ta = 25°C)}
Parameter
Symbol Min. Typ. Max.
Unit
Power supply voltage
VCC
4.5
5.0
5.5
V
1