1-16 Hardware Specifications and Configurations
Mini Card
3G Card
Audio Codec and Amplifier
Item Specification
Number supported N/A
Features N/A
Item Specification
Features N/A
Item Specification
Audio Controller WM8903LGEFK
Audio onboard or optional On board
Mono or Stereo Stereo
Resolution 24-bit data resolution
Compatibility I2S Interface;
Sampling rate Sample rate up to 44.1KHz
Internal microphone Yes
Internal speaker/quantity Yes / (0.5W stereo speakers x2)
Phone Jack HP_Out + MIC
Feature
• 4.5mW power consumption for DAC to headphone playback
• DAC SNR 96dB typical, THD -86dB typical
• ADC SNR 92dB typical, THD -80dB typical
• Control sequencer for pop minimized start-up and shut-
down
• Single register write for default start-up sequence
• Integrated FLL provides all necessary clocks
• Self-clocking modes allow processor to sleep
• All standard sample rates from 8kHz to 96kHz
• Stereo digital microphone input
• 3 single ended inputs per stereo channel
• 1 fully differential mic / line input per stereo channel
• Digital Dynamic Range Controller (compressor / limiter)
• Digital side tone mixing
• Ground-referenced headphone driver
• Ground-referenced line outputs
• Stereo differential line driver for direct interface to WM9001
speaker driver
• 40-pin QFN package (5x5mm)
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