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BH3866AS Datasheet

  • BH3866AS

  • Dual-line serial control sound processor IC

  • 25頁

  • ROHM

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Video ICs
Dual-line serial control sound
processor IC
BH3866AS
The BH3866AS is a signal processing IC developed for the control of volume and tone quality in TV equipment.
Since dual-line serial control (I
2
C BUS) is used, the volume level and tone quality in TV equipment can be changed
using signals such as those from a microcomputer or similar device.
鈥?/div>
Applications computers, high-vision TVs, karaoke sets, digital broadcasts, CATVs, and other TV equipment
DVDs, personal
鈥?/div>
Features volume and sound quality control (for
1) 3-channel
stereo and center speakers).
2) Absorption of volume deviation between input
sources and improved S / N ratio, for better sound
quality, using an AGC circuit.
3) Control through I
2
C BUS serial control.
4) Internal pseudo-stereo circuit provides phase-shift
matrix surround effect.
鈥?/div>
Absolute maximum ratings (Ta = 25擄C)
Parameter
Power supply voltage
Power dissipation
Operating temperature
Storage temperature
Symbol
V
CC
Pd
Topr
Tstg
Limits
10.0
1250
鈭?/div>
鈥?25 ~ + 75
鈥?55 ~ + 125
Unit
V
mW
擄C
擄C
鈭?/div>
Reduced by 12.5mW for each increase in Ta of 1擄C over 25擄C.
鈥?/div>
Recommended operating conditions (Ta = 25擄C)
Parameter
Power supply voltage
Symbol
V
CC
Min.
7.0
Typ.
鈥?/div>
Max.
9.5
Unit
V
1

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