WM8714 Datasheet, PDF (1/17 Pages) Wolfson Microelectronics plc – 24-bit, 96kHz Stereo DAC

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WM8714
24-bit, 96kHz Stereo DAC
DESCRIPTION
The WM8714 is a high performance stereo DAC designed
for audio applications such as DVD, home theatre systems,
and digital TV. The WM8714 supports data input word
lengths from 16 to 24-bits and sampling rates up to 96kHz.
The WM8714 consists of a serial interface port, digital
interpolation filters, multi-bit sigma delta modulators and
stereo DAC in a 14-pin SOIC package.
The WM8714 has a hardware control interface for selection
of audio data interface format, mute and de-emphasis. The
WM8714 supports I²S, and right Justified audio data
interfaces.
The WM8714 is an ideal device to interface to AC-3,
DTS, and MPEG audio decoders for surround sound
applications, or for use in DVD players.
FEATURES
• Stereo DAC
• Audio Performance
- 95dB SNR (‘A’ weighted @ 48kHz) DAC
- -90dB THD
• DAC Sampling Frequency: 8kHz – 96kHz
• Pin Selectable Audio Data Interface Format
- I²S, Right Justified or DSP
• 3 - 5V Supply Operation
• 14-pin SOIC Package
• Pin Compatible with WM8725
APPLICATIONS
• DVD Players
• Digital TV
• Digital Set Top Boxes
BLOCK DIAGRAM
FORMAT MUTE DEEMPH
CONTROL INTERFACE
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WM8714
BCKIN
LRCIN
DIN
SERIAL
INTERFACE
MUTE
MUTE
DIGITAL FILTERS
SIGMA
DELTA
MODULATOR
SIGMA
DELTA
MODULATOR
RIGHT
DAC
LEFT
DAC
LOW
PASS
FILTER
VOUTR
LOW
PASS
FILTER
VOUTL
MCLK
VDD GND
CAP
WOLFSON MICROELECTRONICS plc
w : www.wolfsonmicro.com
Production Data, November 2004, Rev 4.0
Copyright 2004 Wolfson Microelectronics plc.