Products : DACs

Differential O/P stereo DAC with volume control
WM8718_BlockDiagram.gif
FEATURES
  • 24 bit Stereo DAC
  • Fully Differential Voltage Outputs
  • Audio Performance111dB SNR (‘A’ weighted @ 48kHz) DAC
  • -100dB THD
  • DAC Sampling Frequency: 8kHz - 192kHz
  • 3 Wire Serial Control Interface
  • Programmable Audio Data Interface Modes
  • I2S, Left, Right Justified, DSP
  • 16/20/24/32 bit Word Lengths
  • Independent Digital Volume Control on Each Channel with 127.5dB Range in 0.5dB Steps
  • Independent Zero Flag Outputs
  • 3.0V - 5.5V Supply Operation
  • 20-lead SSOP Package or 24-lead QFN Package
DESCRIPTION
The WM8718 is a high performance differential stereo DAC designed for audio applications such as DVD, home theatre systems and digital TV.  The WM8718 supports PCM data input word lengths from 16 to 32-bits and sampling rates up to 192kHz.  The WM8718 consists of a serial interface port, digital interpolation filters, multi-bit sigma delta modulators and differential stereo DAC in a small 20-lead SSOP package or 24-lead QFN package.  The WM8718 includes a digitally controllable mute, an attenuate function and zero flag output for each channel. 
The 3-wire serial control port provides access to a wide range of features including on-chip mute, attenuation and phase reversal. 
The WM8718 is an ideal device to interface to AC-3™, DTS™, and MPEG audio decoders for surround sound applications, or for use in DVD players including those supporting DVD-A.