BH3868BFS Datasheet, PDF (1/28 Pages) Rohm – Audio sound processor with BBE

Audio ICs
Audio sound processor with
BH3868BFS
BH3868BFS
∗
R
BH3868BFS is a Audio sound processor IC developed for TV. This IC is built-in volume, balance, tone, surround, BBE
processor and AGC. This IC can be easily controlled by tow-wire serial control (I²C BUS).
∗ BBE is a registered trade mark of BBE Sound Inc.
Note : I²C BUS is a registered trade mark of Philips.
!Applications
Suitable for TV, TV-radio, PC-TV, mini-component and car audio system, etc.
!Features
1) Volume (main volume), balance (right/left), tone (bass and treble), surround (mode and effect), BBE processor (effect)
can be controlled by I²C-BUS.
2) Volume is VCA with low distortion rate and low noise and can restrain the step noise.
3) The reference voltage source is stable, only a few external devices are required because I/O buffer is contained, and
the package is suitable for space-saving design for SSOP-A32.
4) Sound spread can be controlled by the matrix surround and effect adjustment.
5) The built-in AGC circuit can absorb the volume difference between input sources.
6) The contained BBE processor, which reproduce an original sound, controls the effect.
!Absolute maximum ratings (Ta=25°C)
Parameter
Symbol
Limits
Unit
Impressed voltage
Power dissipation
VCC
10.0
V
Pd
850^∗
mW
Operating temperature range Topr
−40 to +85
°C
Storage temperature range
Tstg
−55 to +150
°C
∗ When mounted on a glass epoxy board 70mm × 70mm × 1.6mm.
Reduced by 6.8mW 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
7.0
−
9.5
V
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