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SSM2377 - Mono 2.5 W Class-D Audio Amplifier

Description

The SSM2377 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.

Features

  • Filterless, Class-D amplifier with spread-spectrum Σ-Δ modulation 2.5 W into 4 Ω load and 1.4 W into 8 Ω load at 5.0 V supply with 100 dB signal-to-noise ratio (SNR) High PSRR at 217 Hz: 80 dB Ultralow EMI emissions Single-supply operation from 2.5 V to 5.5 V Gain select function: 6 dB or 12 dB Fixed input impedance of 80 kΩ 100 nA shutdown current Short-circuit and thermal protection with autorec.

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Full PDF Text Transcription

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www.DataSheet4U.net Filterless, High Efficiency, Mono 2.5 W Class-D Audio Amplifier SSM2377 FEATURES Filterless, Class-D amplifier with spread-spectrum Σ-Δ modulation 2.5 W into 4 Ω load and 1.4 W into 8 Ω load at 5.0 V supply with <1% total harmonic distortion plus noise (THD + N) 92% efficiency at 5.0 V, 1.4 W into 8 Ω speaker >100 dB signal-to-noise ratio (SNR) High PSRR at 217 Hz: 80 dB Ultralow EMI emissions Single-supply operation from 2.5 V to 5.5 V Gain select function: 6 dB or 12 dB Fixed input impedance of 80 kΩ 100 nA shutdown current Short-circuit and thermal protection with autorecovery Available in a 9-ball, 1.2 mm × 1.2 mm WLCSP Pop-and-click suppression The SSM2377 operates with 92% efficiency at 1.4 W into 8 Ω from a 5.0 V supply and has an SNR of >100 dB.
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