BA7796FS Datasheet, PDF (1/10 Pages) Rohm – VCR standard audio signal processor

Video ICs
VCR standard audio signal processor
BA7796FS
The BA7796FS is a standard audio signal processor designed for use in VCRs and tape decks. The circuit is com-
prised of a playback preamplifier, a line amplifier, a recording amplifier, an ALC circuit, an EQ switch, and high-volt-
age head switch.
The IC has three input switching systems, and a built-in coil equivalent circuit for recording equalization, which elimi-
nates the need for an external component.
•^Applications
Video cassette recorders and tape decks
•^Features
1) Three input switching systems built-in (LINE1,
LINE2, and TUNER).
2) Built-in coil equivalent circuit for recording equaliza-
tion.
3) Two-mode EQ switch.
4) High-performance low-noise playback amplifier.
5) Fixed ALC level ( – 7.2dB when VCC = 12V).
6) Phase-inverting recording amplifier.
•^{Absolute maximum ratings (Ta = 25°C)}
Parameter
Symbol
Limits
Unit
Power supply voltage
Power dissipation
VCC
13
V
Pd
800^∗
mW
Operating temperature
Topr
– 10 ~ + 65
°C
Storage temperature
Tstg
– 55 ~ + 125
°C
∗ When mounted on a 90mm × 50mm × 1.6mm glass epoxy board.
Reduced by 8.0mW 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
7.5
—
12.5
V
1