Datasheet4U Logo Datasheet4U.com

WM8904 - Ultra Low-Power Codec

General Description

The WM8904 is a high performance ultra-low power stereo CODEC optimised for portable audio applications.

Key Features

  • stereo ground-referenced headphone amplifiers using the Wolfson ‘Class-W’ amplifier techniques incorporating an innovative dual-mode charge pump architecture - to optimise efficiency and power consumption during playback. The ground-referenced headphone and line outputs eliminate AC coupling capacitors, and both outputs include common mode feedback paths to reject ground noise. Control sequences for audio path setup can be pre-loaded and executed by an integrated control write sequencer to reduc.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
WM8903 Ultra Low Power CODEC Wolfson Microelectronics
WM8912 Ultra Low Power DAC Wolfson Microelectronics
WM8918 Ultra Low Power DAC Wolfson Microelectronics
WM8940 Mono CODEC Wolfson Microelectronics
WM8951L Stereo ADC Wolfson Microelectronics plc

Other Datasheets by Cirrus Logic

Part Number Description
WM8940 Mono CODEC
WM8944B Mono Low-Power CODEC
WM8946 Stereo Low-Power CODEC
WM8950 ADC
WM8960 Stereo CODEC

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.

View original datasheet text
WM8904 Ultra Low-Power Codec for Portable Audio Applications DESCRIPTION The WM8904 is a high performance ultra-low power stereo CODEC optimised for portable audio applications. The device features stereo ground-referenced headphone amplifiers using the Wolfson ‘Class-W’ amplifier techniques incorporating an innovative dual-mode charge pump architecture - to optimise efficiency and power consumption during playback. The ground-referenced headphone and line outputs eliminate AC coupling capacitors, and both outputs include common mode feedback paths to reject ground noise. Control sequences for audio path setup can be pre-loaded and executed by an integrated control write sequencer to reduce software driver development and minimise pops and clicks via SilentSwitch™ technology.