WM8725 Datasheet, PDF (1/9 Pages) Wolfson Microelectronics plc – 99dB Stereo DAC

DESCRIPTION
WM8725 is a high-performance stereo DAC designed for
use in portable audio equipment, video CD players and
similar applications. It comprises selectable normal or I²S
compatible serial data interfaces for 16 to 24-bit digital
inputs, high performance digital filters, and sigma-delta
output DACs, achieving an excellent 99dB signal-to-noise
performance.
The device is available in a 14-pin SO package that offers
selectable mute and de-emphasis functions using a
minimum of external components.
WM8725
99dB Stereo DAC
Production Data, July 2000, Rev 2.0
FEATURES
• Compatible with PCM1725
• 99dB SNR performance
• Stereo DAC with input sampling from 8kHz to 96kHz
• Additional mute feature
• Normal or I²S compatible data format
• Sigma-delta design with 64x oversampling
• System clock 256fs or 384fs
• Supply range 3V to 5V
• 14-pin SOIC package
APPLICATIONS
• Portable audio equipment
• Video CD players
BLOCK DIAGRAM
FORMAT (13)
SCKI (14)
LRCIN (1)
DIN (2)
BCKIN (3)
SERIAL
INTERFACE
DIGITAL
FILTERS
DIGITAL
SIGMA-DELTA
MODULATOR
DIGITAL
SIGMA-DELTA
MODULATOR
WM8725
SWITCHED
CAPACITOR
DAC
SWITCHED
CAPACITOR
DAC
(6) VOUTR
(9) VOUTL
(12) (10)
DEEMPH MUTE
WOLFSON MICROELECTRONICS LTD
Lutton Court, Bernard Terrace, Edinburgh, EH8 9NX, UK
Tel: [phone]
Fax: [phone]
Email: [e-mail]
http://www.wolfson.co.uk
(8)
(5)
(7)
VDD CAP GND
Production Data datasheets contain final
specifications current on publication date.
Supply of products conforms to Wolfson
Microelectronics’ Terms and Conditions.
2000 Wolfson Microelectronics Ltd.