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Retrieved from "http://wiki.openmoko.org/wiki/WM8976"
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The WM8976 is a setero audio codec with speaker driver.

It supports various sample rates (8, 11.025, 12, 16, 22.05, 24, 32, 44.1 and 48kHz) and features a five-band equalizer as well as 3-D stereo enhancement.

The configuration in the GTA01 is like this:

  • IIS and I2C connected to S3C2410
  • LOUT2/ROUT2 connected to stereo amplifier (integrated speakers)
  • OUT3 connected to GSM Modem Audio input
  • LIP/LIN (differential Microphone input) connected to Microphone
  • AUXL/AUXR connected to GSM Modem Audio output (EARPiece)