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WM8706  
 
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Stereo DAC with volume control
WM8706_BlockDiagram.gif
FEATURES
  • Stereo DAC
  • 106dB SNR (’A’ weighted @ 48kHz)
  • 97dB THD
  • DAC Sampling Frequency: 8kHz – 192kHz
  • 3-Wire Serial Control Interface or Hardware Control
  • Programmable Audio Data Interface Modes
  • Independent Digital Volume Control on Each Channel with 127.5dB Range in 0.5dB Steps
  • 3.0V - 5.5V Supply Operation
  • 28-Pin SSOP Package
  • Pin compatible with WM8716
  • Exceeds Dolby Class A Performance Requirements
DESCRIPTION

The WM8706 is a high performance stereo DAC designed for audio applications such as DVD, home theatre systems, and digital TV. The WM8706 supports data input word lengths from 16 to 24-bits and sampling rates up to 192kHz. The WM8706 can implement 2 channels at 192kHz for high-end DVD-Audio. The WM8706 consists of a serial interface port, digital interpolation filters, multi-bit sigma delta modulators and stereo DAC in a small 28-pin SSOP package. The WM8706 also includes a digitally controllable mute and attenuate function on each channel.

The WM8706 supports a variety of connection schemes for audio DAC control. The MPU serial port provides access to a wide range of features including on-chip mute, attenuation and phase reversal. A hardware controllable interface is also available. It is pin-compatible with the WM8716 provided the oscillator circuit on WM8716 is not required in the application.

The WM8706 is an ideal device to interface to AC-3™, DTS™, and MPEG audio decoders for surround sound applications, or for use in DVD players supporting DVD-A.

 
 
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DATA SHEET
WM8706 Rev 4.1 (296 k )

RELATED PRODUCTS
WM8716
WM8728
WM8729

EVALUATION BOARDS
WM8706EV1M

APPLICATION NOTES

 
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