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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.

Video cameras

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 10

µ sec flyback pulses.

Parameter

Symbol

Limits

Unit

8.0

V

mW

°C

°C

– 20 ~ + 75

– 55 ~ + 125

Pd

Topr

Tstg

Applied voltage

Power dissipation

Operating temperature

Storage temperature

Parameter

Symbol

Min.

Typ.

Max.

Unit

4.5

5.0

5.5

V

Power supply voltage