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SGM4703 - High-Power Stereo Class-D Audio Power Amplifier

General Description

The SGM4703 is a high-power, high efficiency, stereo Class-D audio power amplifier with adjustable power limit (APL) and automatic level control (ALC).

It operates with a wide range of supply voltages from 5V to 26V.

Key Features

  • APL and ALC. The APL limits peak audio outputs to a user-defined value to protect audio speakers from excessive power dissipation or over-load. The APL and ALC adjust the voltage gain of the audio amplifiers in response to over-limit audio inputs, eliminating output clipping distortion while maintaining a maximally allowed dynamic range of audio outputs. The limiting voltage of APL and ALC can be either a user-defined value or the supply voltage. The SGM4703 can be configured into driving either.

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Datasheet Details

Part number SGM4703
Manufacturer SG Micro
File Size 1.16 MB
Description High-Power Stereo Class-D Audio Power Amplifier
Datasheet download datasheet SGM4703 Datasheet

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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SGM4703 High-Power Stereo Class-D Audio Power Amplifier with Adjustable Power Limit and Automatic Level Control GENERAL DESCRIPTION The SGM4703 is a high-power, high efficiency, stereo Class-D audio power amplifier with adjustable power limit (APL) and automatic level control (ALC). It operates with a wide range of supply voltages from 5V to 26V. With 24V supply voltage, it can deliver 2 × 40W peak output power for a pair of 8Ω speakers with 10% THD+N. The high efficiency of SGM4703 extends battery life in playing music and allows it to deliver an output power of 2 × 20W without the need for a bulky heat sink on a two-layer system board. Its high PSRR and low EMI emission reduce system design and manufacturing complexities, as well as lower system cost. The SGM4703 features APL and ALC.