MOSA - MS6865

Echo Processor

General Purpose OP Amp

Headphone Driver

Audio Power Amplifier

Audio DAC

Audio DAC with HP

Audio DAC with HP and
Volume Control

Audio DAC with PA

Audio Volume Controller

Audio Volume Controller
with HP

Audio Volume Controller
with PA mosa

MS6864

MS6865

Audio Processor

Audio Processor(Low Cost)

Audio Combo

DTMF

Products > Audio volume Controller with PA > MS6865

MS6865
3 Stereo Inputs / 2W Power Amplifiers with Volume Control

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

Datasheet

TSSOP20

Block Diagram

Application Circuit

Features

‧Operation range: 2.4V~6.5V
‧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, THD+N=1%
    RL=4Ω, 2W at 5V, 0.8W at 3.3V, 360mW at 2.4V
    RL=8Ω, 1.3W at 5V, 0.53W at 3.3V, 250mW at 2.4V
‧SE Output power, THD+N=0.1%
    RL=32Ω, 93mW at 5V, 35mW at 3.3V, 15mW at 2.4V
‧Control interface : I2C
‧Excellent Power Supply Rejection Ratio(PSRR)
‧Flexibility power management‧Component less
‧Reduce pop noise circuit
‧Housed in TSSOP20 (enhanced thermal PAD) package,

Application

‧Multimedia syste
‧Portable Digital Audio

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 ~ 6.5V, low power consumption, power management, component less, make the MS6865 ideally suitable for use in the portable digital audio equipments.