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BH3856FS Datasheet

  • BH3856FS

  • 2-wire serial sound control IC

  • 168.42KB

  • 16頁

  • ROHM

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BH3856S / BH3856FS
Audio ICs
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 (I
2
C 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) I
2
C 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擄C)
Parameter
Power supply voltage
Power dissipation
Operating temperature
Storage temperature
BH3856S
BH3856FS
Symbol
Vcc
Pd
Topr
Tstg
Limits
10.0
1200
鈭?/div>
850
鈭?/div>
2
1
Unit
V
mW
擄C
擄C
鈭?0~+85
鈭?5~+150
鈭?/div>
1 Reduced by 12mW for each increase in Ta of
1擄C over 25擄C.
鈭?/div>
2 Reduced by 6.8mW for each increase in
Ta of 1擄C over 25擄C.
!
Recommended operating conditions
(Ta = 25擄C)
Parameter
Power supply voltage
Symbol
V
CC
Min.
6.0
Typ.
9
Max.
9.5
Unit
V
Note : I
2
C BUS is a registered trademark of Philips.

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