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SSM4321 - Mono 2.9 W Class-D Audio Amplifier

Key Features

  • Filterless Class-D amplifier with spread-spectrum Σ-Δ modulation Digitized output of output voltage, output current, and PVDD supply voltage 72 dB signal-to-noise ratio (SNR) on output current sensing and 77 dB SNR on output voltage sensing TDM or multichip I2S slave output interface Up to 4 chips supported on a single bus 8 kHz to 48 kHz operation I2S/left justified slave output interface 1 or 2 chips supported on a single bus 8 kHz to 48 kHz operation PDM output interface operates from 1 MHz t.

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Data Sheet Mono 2.9 W Class-D Audio Amplifier with Digital Current and Voltage Output SSM4321 FEATURES Filterless Class-D amplifier with spread-spectrum Σ-Δ modulation Digitized output of output voltage, output current, and PVDD supply voltage 72 dB signal-to-noise ratio (SNR) on output current sensing and 77 dB SNR on output voltage sensing TDM or multichip I2S slave output interface Up to 4 chips supported on a single bus 8 kHz to 48 kHz operation I2S/left justified slave output interface 1 or 2 chips supported on a single bus 8 kHz to 48 kHz operation PDM output interface operates from 1 MHz to 6.144 MHz 2.2 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) 89% efficiency at 5.0 V, 1.4 W into 8 Ω + 0.