WM8727

w 24-bit 192kHz Stereo DAC WM8727 DESCRIPTION The WM8727 is a high performance stereo DAC designed for audio applications such as DVD, home theatre systems, and digital TV. The WM8727 supports data input word lengths from 16 to 24-bits and sampling rates up to 192kHz. The WM8727 consists of a serial interface port, digital interpolation filters, multi-bit sigma delta modulators and stereo DAC in a very small 8-pin SOIC package. The WM8727 supports a 16-24-bit I2S digital audio interface. The WM8727 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. FEATURES Stereo DAC Audio Performance - 98dB SNR (‘A’ weighted @ 48kHz) DAC - -84dB THD DAC Sampling Frequency: 8kHz – 192kHz Audio Data Interface Format - 16-24-Bit I2S 2.7V – 5.5V Supply Operation 8-pin SOIC Package Exceeds Dolby Class A Performance Requirements APPLICATIONS DVD Players Digital TV Digital Set Top Box BLOCK DIAGRAM BCKIN LRCIN DIN SERIAL INTERFACE MUTE MUTE DIGITAL FILTERS SIGMA DELTA MODULATOR SIGMA DELTA MODULATOR RIGHT DAC LOW PASS FILTER VOUTR LEFT DAC LOW PASS FILTER VOUTL W WM8727 MCLK VDD GND WOLFSON MICROELECTRONICS plc www.wolfsonmicro.com Production Data, April 2004, Rev 4.1 Copyright 2004 Wolfson Microelectronics plc WM8727 TABLE OF CONTENTS Production Data DESCRIPTION ..............