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WM8729 Datasheet(PDF) 1 Page - Wolfson Microelectronics plc |
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WM8729 Datasheet(HTML) 1 Page - Wolfson Microelectronics plc |
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1 / 15 page  WM8729 24-bit, 192kHz Stereo DAC Product Preview, Rev 1.2, April 2001 WOLFSON MICROELECTRONICS LTD Lutton Court, Bernard Terrace, Edinburgh, EH8 9NX, UK Tel: +44 (0) 131 667 9386 Fax: +44 (0) 131 667 5176 Email: sales@wolfson.co.uk www.wolfsonmicro.com Product Preview data sheets contain specifications for products in the formative phase of development. These products may be changed or discontinued without notice. 2001 Wolfson Microelectronics Ltd . DESCRIPTION The WM8729 is a high performance stereo DAC designed for audio applications such as DVD, home theatre systems, and digital TV. The WM8729 supports data input word lengths from 16 to 24-bits and sampling rates up to 192kHz. The WM8729 consists of a serial interface port, digital interpolation filters, multi-bit sigma delta modulators and stereo DAC in a small 16-pin SOIC package. The WM8729 has a hardware control interface for selection of audio data interface format and de-emphasis. The WM8729 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 - 106dB SNR (‘A’ weighted @ 48kHz) DAC - -97dB THD • DAC Sampling Frequency: 8kHz – 192kHz • Pin Selectable Audio Data Interface Format - I 2S or Right Justified • 3.0V - 5.5V Supply Operation • 16-pin SOIC Package • Exceeds Dolby Class A Performance Requirements APPLICATIONS • DVD-Audio and DVD ‘Universal’ Players • Home theatre systems • Digital TV • Digital broadcast receivers BLOCK DIAGRAM SERIAL INTERFACE MUTE CONTROL INTERFACE BCKIN VOUTL VOUTR SIGMA DELTA MODULATOR LRCIN DIN MUTE SIGMA DELTA MODULATOR DIGITAL FILTERS MCLK DVDD AVDD AGND DGND DEM MUTEB FORMAT LOW PASS FILTER LOW PASS FILTER VMID RIGHT DAC LEFT DAC VREFN VREFP WM8729 |
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