Analog Devices Inc.

Category: Amplifiers and Comparators

Ultra Low Power, Class-D Audio Amplifier Features: Filterless digital input, mono differential output Class-D amplifier with 3-level Σ-Δ modulation optimized for headphone drive Operates from single 1.8 V supply 80 mW output power, 16 Ω load at <0.1% THD + N 2.57 μV rms noise, 113 dB A weighted signal-to-noise ratio and dynamic range 0.003% THD + N at 30 mW, 1 kHz output 32 Ω load I2C control with up to 4 pin selectable addresses or standalone operation Multiple serial data formats TDM, I2S, or left justified slave PDM input operating from 2.8224 MHz to 12.288 MHz Support sample rates from 8 kHz to 768 kHz 3.9 μs latency with 6 MHz PDM input Flexible digital gain adjustment DC blocking high-pass filter with programmable corner frequency 1.55 mW typical idle power in high performance mode Low power modes for reduced power consumption Flexible output gain limiter and clipping Auto power-down feature with zero digital input Short-circuit protection Pop and click suppression User-selectable ultralow EMI emissions mode Power-on reset 1.8 V PVDD supply 1.2 V to 1.8 V IOVDD supply 11-ball, 0.984 mm × 1.444 mm, 0.35 mm pitch WLCSP

$2.17 - $5.68