WM8955BL - Wolfson Microelectronics

WM8955BL Stereo DAC

The WM8955BL is a low power, high quality stereo DAC with integrated headphone and earpiece amplifiers, designed to reduce external component requirements in portable digital audio applications. The on-chip headphone amplifiers can deliver 40mW into a 16Ω load. Advanced on-chip digital signal processing performs bass and treble tone control. The WM8955BL can.

Features

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• DAC SNR 98dB, THD -86dB (‘A’ weighted @ 48kHz, 3.3V) On-chip Headphone Driver - 40mW output power on 16Ω / 3.3V - SNR 96dB, THD
  –79dB at 20mW with 16Ω load On-chip BTL Earpiece Driver (mono) Stereo and Mono Line-in mix into DAC output Separately Mixed Stereo and Mono Outputs Digital Tone Control and Bass Boost Low Power - Down to 7mW for stereo playback (1.8V / 1.5V supplies) - 10μW Shutdown Mode Low Supply Voltages - Analogue and Digital I/O: 1.8V to 3.6V - Digital core: 1.42V to 3.6V Master clocks supported: GSM, CDMA, PDC, USB or standard audio clocks Audio sample rates supported: 8, 11.