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SSM2375 - Mono 3W Class-D Audio Amplifier

General Description

The SSM2375 is a fully integrated, high efficiency, Class-D audio amplifier.

It is designed to maximize performance for mobile phone applications.

The application circuit requires a minimum of external components and operates from a single 2.5 V to 5.5 V supply.

Key Features

  • Filterless Class-D amplifier with spread-spectrum Σ-Δ modulation 3 W into 3 Ω load and 1.4 W into 8 Ω load at 5.0 V supply with 100 dB signal-to-noise ratio (SNR) High PSSR at 217 Hz: 80 dB Flexible gain adjustment pin: 0 dB to 12 dB in 3 dB steps Fixed input impedance: 80 kΩ User-selectable ultralow EMI emissions mode Single-supply operation from 2.5 V to 5.5 V 20 nA shutdown current Short-circuit and therm.

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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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Data Sheet Filterless, High Efficiency, Mono 3 W Class-D Audio Amplifier SSM2375 FEATURES Filterless Class-D amplifier with spread-spectrum Σ-Δ modulation 3 W into 3 Ω load and 1.4 W into 8 Ω load at 5.0 V supply with <1% total harmonic distortion (THD + N) 93% efficiency at 5.0 V, 1.4 W into 8 Ω speaker >100 dB signal-to-noise ratio (SNR) High PSSR at 217 Hz: 80 dB Flexible gain adjustment pin: 0 dB to 12 dB in 3 dB steps Fixed input impedance: 80 kΩ User-selectable ultralow EMI emissions mode Single-supply operation from 2.5 V to 5.5 V 20 nA shutdown current Short-circuit and thermal protection with autorecovery Available in 9-ball, 1.5 mm × 1.