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WM9707: CODEC

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Description

WM9707 is a high-quality stereo audio CODEC compliant with the AC’97 Revision 2.1 specification. It performs full duplex 18-bit CODEC functions and supports variable sample rates from 8 to 48k samples/s and offers excellent quality with high SNR. Additional features include 3D sound enhancement, line-level outputs, hardware sample rate conversion, master/slave mode operation and SPDIF output. 

WM9707 is interchangeable with AC’97 CODECs from Wolfson and other suppliers. The WM9707 is fully operable on 3.3V or 5V or mixed 3.3/5V supplies, and is packaged in the industry standard 48-lead TQFP package with 7mm body size.

Features

  • 3.3V or 5V operation
  • 18-bit stereo CODEC
  • S/N ratio > 95dB
  • Multiple stereo input mixer
  • Mono and stereo volume control
  • 48-lead TQFP package
  • Power management features
  • Very low standby power
  • Variable rate audio (VRA) support
  • Analogue 3D stereo enhancement
  • Line level outputs
  • Supports Rev. 2.1 specified audio sample rates
    and filtering
  • Master/slave ID selection
  • PC-beep connection when device held reset
  • SPDIF digital output

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