BA7149F Datasheet Electronic viewfinder driver

Manufacturer: ROHM

Overview: 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 signals 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.

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BA7149F electronic viewfinder driver by ROHM - Datasheet Preview

Datasheet Details

Part number	BA7149F
Manufacturer	ROHM
File Size	83.55 KB
Description	Electronic viewfinder driver
Download	BA7149F Download (PDF)

General Description

s Pin No.

1 2 3 4 5 6 7 8 Function Vertical control input Power supply 1 Vertical deflection drive (POS) GND 1 Vertical deflection drive (NEG) Vertical oscillator external resistor Vertical oscillator external capacitor VD output Pin No.

9 10 11 12 13 14 15 16 HD output GND 2 Video input Power supply 2 Video output Phase comparator output Horizontal oscillator external resistor Horizontal AFC output Function 2 Video ICs BA7149F •Electrical characteristics (unless otherwise noted, Ta = 25°C and Vcc = 5.0V) Parameter Operating current dissipation Symbol ICC Min.

Key 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 Applied voltage Power dissipation Operating temperature Storage temperature Symbol VCC Max. Pd Topr Tstg Limits 8.0 500∗.
20 ~ + 75.
55 ~ + 125 Unit V mW °C °.

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