BH3866AS Datasheet, PDF (1/25 Pages) Rohm – Dual-line serial control sound processor IC

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 (I²C 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.
•^Applications
DVDs, personal computers, high-vision TVs, karaoke sets, digital broadcasts, CATVs, and other TV equipment
•^Features
1) 3-channel volume and sound quality control (for
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 I²C BUS serial control.
4) Internal pseudo-stereo circuit provides phase-shift
matrix surround effect.
•^{Absolute maximum ratings (Ta = 25°C)}
Parameter
Symbol
Limits
Unit
Power supply voltage
VCC
Power dissipation
Pd
10.0
V
1250^∗
mW
Operating temperature
Topr
– 25 ~ + 75
°C
Storage temperature
Tstg
– 55 ~ + 125
°C
∗ Reduced by 12.5mW 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
7.0
—
9.5
V
1