MS6865 Datasheet, PDF (1/20 Pages) MOSA ELECTRONICS – Dual 2W Power Amplifier 3 Stereo Inputs with Volume Control

MOSA
MS6865
3 Stereo inputs / 2W PA output with Volume Control
Dual 2W Power Amplifier
3 Stereo Inputs with Volume Control
FEATURES
•Operation range: 2.4V~5.5V
•3 stereo inputs
•Volume control range
Gain: 0 to 21dB, 3dB/step
Attenuation: 0 to -77.5dB, 1.25dB/step
•Output mode : Speaker( BTL)/Headphone(SE)
•BTL Output power
R_L=4Ω, 2W at 5V, 0.8W at 3.3V, 360mW at 2.4V
R_L=8Ω, 1.3W at 5V, 0.53W at 3.3V, 250mW at 2.4V
•SE Output power
R_L=32Ω, 93mW at 5V, 35mW at 3.3V, 15mW at 2.4V
APPLICATIONS
Multimedia system, Portable Digital Audio.
•Control interface : I²C
•Excellent Power Supply Rejection Ratio(PSRR)
•Flexibility power management
•Component less
•Reduce pop noise circuit
•Housed in TSSOP20 package, enhanced thermal
PAD
DESCRIPTION
The MS6865 is low distortion stereo power amplifier that has 3 stereo inputs with volume control. It can drive 2W of
continuous average power into a dual 4Ω bridged-tied (BTL) speaker or 2 * 90mW into stereo 32Ω single ended (SE)
headphone. The volume control offers wide range of gain and attenuation for stereo input. All of the functions are easy
setting that can be set by I2C interface.
The MS6865 has good features for portable equipment, including wide voltage operation 2.4V~5.5V, low power
consumption, power management, component less and small package TSSOP20, make the MS6865 ideally suitable for
use in the portable digital audio equipments.
BLOCK DIAGRAM
LIN1
LIN2
LIN3
RIN3
RIN2
RIN1
L-ch selector
& Gain
Attenuation
&
Mute
R-ch selector
& Gain
Attenuation
&
Mute
-1
-1
-1
-1
OUTR-
OUTR+
OUTL-
OUTL+
REV 1.0
Supply
I²C Interface
Power Amplifier
Supply
AV_DD AV_SS CAP
SCL SDA V_SS
PV_DDL PV_SSL PV_DDR PV_SSR
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