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WM8955BL - Stereo DAC

General Description

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.

Key Features

  • 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 c.

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Datasheet Details

Part number WM8955BL
Manufacturer Wolfson Microelectronics
File Size 693.17 KB
Description Stereo DAC
Datasheet download datasheet WM8955BL Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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w DESCRIPTION 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 operate as a master or a slave, and includes an on-chip PLL. It can use most master clock frequencies commonly found in portable systems, including USB, GSM, CDMA or PDC clocks, or standard 256fs clock rates. Different audio sample rates such as 48kHz, 44.1kHz, 8kHz and many others are supported. The WM8955BL operates on supply voltages from 1.8V up to 3.