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ft2830 - Class-G Audio Power Amplifier

Datasheet Summary

Description

The ft2830 is a highly efficient 4.5W Class-G audio power amplifier with automatic level control (ALC) for use in battery-powered portable devices.

It integrates a filterless Class-D audio power amplifier with a Class-G charge pump regulator based upon proprietary Dual-PumpTM topology.

Features

  • ALC to constantly monitor and safeguard the audio outputs against the boosted supply voltage, preventing output clipping distortion, excessive power dissipation, or hazardous speaker over-load. Once an over-level condition is detected, the ALC lowers the voltage gain of the audio amplifier proportionally to eliminate output clipping distortion while maintaining a maximum dynamic range of the audio outputs allowed by the boosted supply voltage.

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Datasheet Details

Part number ft2830
Manufacturer Fangtek
File Size 1.09 MB
Description Class-G Audio Power Amplifier
Datasheet download datasheet ft2830 Datasheet
Additional preview pages of the ft2830 datasheet.

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Full PDF Text Transcription

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ft2830 4.5W Dual-PumpTM Class-G Audio Power Amplifier GENERAL DESCRIPTION The ft2830 is a highly efficient 4.5W Class-G audio power amplifier with automatic level control (ALC) for use in battery-powered portable devices. It integrates a filterless Class-D audio power amplifier with a Class-G charge pump regulator based upon proprietary Dual-PumpTM topology. It operates from 3.2V to 4.6V supply. When operating with a 4.2V supply voltage, the ft2830 can deliver into a 4Ω load a maximum output power up to 4.5W with 10% THD+N, or a constant output power at 3.5W with 0.5% THD+N. Its high efficiency, up to 83%, helps extend battery life. In ft2830, the power supply rail for the amplifier’s output stage is internally boosted and regulated at 6.
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