
Wolfson Microelectronics plc
DESCRIPTION
The WM8850 is a high performance multi-channel audio CODEC designed for high performance PC audio systems. The device offers full compatibility with the Intel High Definition Audio (HDA) specification revision 1.0,allowing seamless integration with industry-standard HDA controllers.
FEATURES
Multi-channel High Definition Audio CODEC
Fully compatible with Intel High Definition Audio Revision 1.0
6-Channel DAC, 4-channel ADC
DAC sampling frequency 8kHz - 192kHz
ADC sampling frequency 8kHz - 96kHz
DAC Performance:
- SNR 108 dB (‘A’ weighted)
- SNR 105dB (non weighted)
- THD -96dB (at 0dBFS)
ADC Performance:
- SNR 105 dB (‘A’ weighted)
- SNR 102dB (non weighted)
- THD -95dB (at -1dBFS)
Ground-referenced stereo headphone driver
Differential line inputs/outputs
Stereo microphone interface with integrated pre-amp
Multi-channel digital microphone interface
IEC-60958-3 compatible S/PDIF transceiver
Additional IEC-60958-3 compatible S/PDIF transmitter
Jack detect and load impedance sensing
Beep generator
GPIO functionality
IEEE-754 Single precision 32-bit floating point support
Power supplies
- Digital core: 1.62V – 1.98V
- Digital buffer: 2.97V – 3.63V
- Analogue: 4.5V – 5.25V
- Charge pump: 4.5V – 5.25V 48-pin 7mm x 7mm QFN package
APPLICATIONS
High performance PC audio
All-in-one desktop PC
Notebook PC