BH7884EFV_10 Datasheet, PDF (1/11 Pages) Rohm – 1W+1W Stereo Speaker / Headphone Amplifier

Class-AB Speaker Amplifiers
1W+1W Stereo
Speaker / Headphone Amplifier
BH7884EFV
No.10077EAT06
●Description
The BH7884EFV is a low voltage, low noise, high output speaker and headphone amplifier drive, in which a Bi-CMOS
process is used. This IC supports: headphone amplifier gain adjustment, active/suspend switching, speaker amplifier
stereo/monaural switching, and amplifier mute switching. All functions are controllable from a microcontroller. Built-in digital
noise reduction circuits eliminate digital noise and BEEP sounds.
●Features
1) Built-in 1W+1W stereo speaker amplifier (Vcc=5V, RL=8Ω, THD=10%)
2) Built-in stereo headphone amplifier
3) Built-in bass boost function for speaker amplifier
4) Built-in low noise VCA (electronic volume) for headphone
5) Built-in mute circuit
6) Built-in standby circuit
7) Low current consumption specifications (9 mA TYP. in ACTIVE mode, 0.2 μA TYP. in SUSPEND mode)
●Applications
Notebook computers, LCD TVs, etc.
●Absolute maximum ratings(Ta=25℃)
Parameter
Ratings
Unit
Supply voltage
Power dissipation
+6.0
V
1100 ^*1
mW
Storage temperature
-55 ~ +125
℃
Operating temperature
-10 ~ +70
℃
*1 Reduced by 11 mW/℃ at 25℃ or higher, when mounting on a 70mmX70mmX1.6mm PCB board).
●Operating Conditions (Ta=25℃)
Parameter
Ratings
Unit
Supply voltage
+3.0~+5.5
V
* This IC is not designed to be radiation-resistant.
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2010.06 - Rev.A