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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 I
2
S, 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.
WM8714
FEATURES
•
•
Stereo DAC
Audio Performance
-
95dB SNR (‘A’ weighted @ 48kHz) DAC
-
-90dB THD
DAC Sampling Frequency: 8kHz – 96kHz
Pin Selectable Audio Data Interface Format
-
I
2
S, 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
W
CONTROL INTERFACE
WM8714
MUTE
BCKIN
LRCIN
DIN
MUTE
SERIAL
INTERFACE
DIGITAL FILTERS
SIGMA
DELTA
MODULATOR
RIGHT
DAC
LOW
PASS
FILTER
VOUTR
SIGMA
DELTA
MODULATOR
LEFT
DAC
LOW
PASS
FILTER
VOUTL
CAP
MCLK
VDD
GND
WOLFSON MICROELECTRONICS plc
w : www.wolfsonmicro.com
Production Data, November 2004, Rev 4.0
Copyright
2004
Wolfson Microelectronics plc.
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
