DESCRIPTION
The WM8728 is a high performance stereo DAC designed for audio applications such as DVD, home theatre systems, and digital TV. The WM8728 supports PCM data input word lengths from 16 to 32-bits and sampling rates up to 192kHz. Alternatively the WM8728 can operate in DSD compatible mode where a 64x bitstream is input for each channel. The WM8728 consists of a serial interface port, digital interpolation filters, multi-bit sigma delta modulators and stereo DAC in a small 20-pin SSOP package. The WM8728 also includes a digitally controllable mute and attenuate function for each channel.

FEATURES
• Stereo DAC with 24 bit PCM or single bit DSD operation
• Audio Performance
    - 106dB SNR (‘A’ weighted @ 48kHz) DAC
    - -97dB THD
• DAC Sampling Frequency: 8kHz - 192kHz
• 2 or 3-Wire Serial Control Interface or Hardware Control
• 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
• 3.0V - 5.5V Supply Operation
• 20-pin SSOP Package
• Exceeds Dolby Class A Performance Requirements

APPLICATIONS
• DVD-Audio and DVD ‘Universal’ Players
• Home theatre systems
• Digital TV
• Digital broadcast receivers