About MOSA
Products > Audio volume Controller with PA > MS6865
3 Stereo Inputs / 2W Power Amplifiers with Volume Control

Low Voltage, Reduce Pop Noise Circuit
Shutdown function, I2C interface



Block Diagram
 Application Circuit
¡EOperation range: 2.4V~6.5V
¡E3 stereo inputs
¡EVolume control range
    Gain: 0 to 21dB, 3dB/step
    Attenuation: 0 to ¡V77.5dB, 1.25dB/step
¡EOutput mode : Speaker( BTL)/Headphone(SE)
¡EBTL Output power, THD+N=1%
    RL=4£[, 2W at 5V, 0.8W at 3.3V, 360mW at 2.4V
    RL=8£[, 1.3W at 5V, 0.53W at 3.3V, 250mW at 2.4V
¡ESE Output power, THD+N=0.1%
    RL=32£[, 93mW at 5V, 35mW at 3.3V, 15mW at 2.4V
¡EControl interface : I2C
¡EExcellent Power Supply Rejection Ratio(PSRR)
¡EFlexibility power management¡EComponent less
¡EReduce pop noise circuit
¡EHoused in TSSOP20 (enhanced thermal PAD) package,
¡EMultimedia syste
¡EPortable Digital Audio
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 4£[ bridged-tied (BTL) speaker or 2 * 90mW into stereo 32£[ 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 ~ 6.5V, low power consumption, power management, component less, make the MS6865 ideally suitable for use in the portable digital audio equipments.
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