BH3856S Datasheet, PDF (1/16 Pages) Rohm – 2-wire serial sound control IC

Audio ICs
BH3856S / BH3856FS
2-wire serial sound control IC
BH3856S / BH3856FS
The BH3856S and BH3856FS are signal processing ICs designed for volume and tone control in televisions, mini
component stereo systems, and other audio products. Their two-line serial control (I²C BUS) enables them to control
volume and tone on the basis of signals from a microcomputer, etc.
!Applications
Televisions, [Video equipped television], personal computer televisions, mini component stereo systems, car stereos.
!Features
1) I²C BUS facilitates direct serial control from a microcomputer of volume (main volume), balance (left / right), and tone
(bass, treble). DC control is also possible.
2) Volume is produced by a low-distortion, low-noise VCA. Designed to minimize step noise.
3) Stable standard voltage supply and built-in I/O buffer mean that few attachments are needed. SSOP-A32 package
designed to save space.
4) Matrix surround yields powerful sound.
!Absolute maximum ratings (Ta = 25°C)
Parameter
Symbol
Limits
Unit
Power supply voltage
Vcc
Power dissipation
BH3856S
Pd
BH3856FS
10.0
V
1200^∗1
850 ^∗2
mW
Operating temperature
Topr
−40~+85
°C
Storage temperature
Tstg
−55~+150
°C
∗1 Reduced by 12mW for each increase in Ta of 1°C over 25°C.
∗2 Reduced by 6.8mW for each increase in Ta of 1°C over 25°C.
!Recommended operating conditions (Ta = 25°C)
Parameter
Power supply voltage
Symbol Min. Typ. Max.
Unit
VCC
6.0
9
9.5
V
Note : I²C BUS is a registered trademark of Philips.