Description

Filterless, High Efficiency, Mono 3 W Class-D Audio Amplifier Features: Filterless Class-D amplifier with ultraefficient spread-spectrum Σ-Δ modulation Internal modulator synchronization (SYNC) 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) 90% efficiency at 5.0 V, 1.4 W into 8 Ω speaker Signal-to-noise ratio (SNR): 98 dB Single-supply operation: 2.5 V to 5.5 V Ultralow shutdown current: 20 nA Short-circuit and thermal protection with autorecovery Available in 9-ball, 1.5 mm × 1.5 mm WLCSP Pop-and-click suppression Built-in resistors reduce board component count Default fixed 12 dB or user-adjustable gain setting