WM8726_12 Datasheet, PDF (1/23 Pages) Wolfson Microelectronics plc – 24-bit 192kHz Stereo DAC

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24-bit 192kHz Stereo DAC
WM8726
DESCRIPTION
The WM8726 is a high performance stereo DAC designed
for audio applications such as DVD, home theatre systems,
and digital TV. The WM8726 supports data input word
lengths from 16 to 24-bits and sampling rates up to 192kHz.
The WM8726 consists of a serial interface port, digital
interpolation filters, multi-bit sigma delta modulators and
stereo DAC.
The WM8726 has a hardware control interface for selection
of audio data interface format, mute and de-emphasis. The
WM8726 supports I²S, right Justified or DSP interfaces.
The WM8726 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 supporting
the implementation of 2 channels at 192kHz for high-end
DVD-Audio applications.
The WM8726 is available in a 14-lead SOIC package.
FEATURES
 Stereo DAC
 Audio Performance
- 97 dB SNR (‘A’ weighted @ 48kHz)
- -89 dB THD
 DAC Sampling Frequency: 8kHz – 192kHz
 Pin Selectable Audio Data Interface Format
- I²S, 16-bit Right Justified or DSP
 3.0V - 5.5V Supply Operation
 14-lead SOIC Package
 Pin Compatible with WM8725
APPLICATIONS
 DVD Players
 Home Theatre Systems
 Digital TV
 Digital Set Top Boxes
 Automotive
BLOCK DIAGRAM
FORMAT MUTE DEEMPH
CONTROL
INTERFACE
W
WM8726
BCKIN
LRCIN
DIN
AUDIO
INTERFACE
MUTE
MUTE
DIGITAL
FILTERS
SIGMA
DELTA
MODULATOR
RIGHT
DAC
SIGMA
DELTA
MODULATOR
LEFT
DAC
VOUTR
VOUTL
MCLK
WOLFSON MICROELECTRONICS plc
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CAP
VDD GND
Production Data, January 2012, Rev 4.8
Copyright 2012 Wolfson Microelectronics plc