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WM9703CFT/V Scheda tecnica(PDF) 1 Page - Wolfson Microelectronics plc |
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WM9703CFT/V Scheda tecnica(HTML) 1 Page - Wolfson Microelectronics plc |
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1 / 30 page  WM9703 AC’97 Revision 2.1 Audio Codec Production Data, January 2001, Rev 3.4 WOLFSON MICROELECTRONICS LTD Lutton Court, Bernard Terrace, Edinburgh, EH8 9NX, UK Tel: +44 (0) 131 667 9386 Fax: +44 (0) 131 667 5176Email: sales@wolfson.co.uk http://www.wolfson.co.uk Production Data datasheets contain final specifications current on publication date. Supply of products conforms to Wolfson Microelectronics’ Terms and Conditions. 2001 Wolfson Microelectronics Ltd . DESCRIPTION WM9703 is a high-quality stereo audio codec compliant with the AC’97 Revision 2.1 specification. It performs full duplex 18-bit codec functions and supports variable sample rates from 8 to 48k samples/s and offers excellent quality with high SNR. Additional features include 3D sound and line-level outputs. In addition, support is provided for variable sample rates and accommodation is made for master/slave mode operation. WM9703 is interchangeable with AC’97 codecs from Wolfson and other suppliers. The WM9703 is fully operable on 3.3V or 5V or mixed 3.3/5V supplies, and is packaged in the industry standard 48-pin TQFP package with 7mm-body size. AC’97 FEATURES • 3.3V or 5V operation • 18-bit stereo codec • S/N ratio > 95dB • Multiple stereo input mixer • Mono and stereo volume control • 48-pin TQFP package • Power management features • Low power implementation • Very low standby power AC’97 REVISION 2.1 FEATURES • Variable rate audio (VRA) support • Analogue 3D stereo enhancement • Line level outputs • Supports Revision. 2.1 specified modem sample rates and filtering • Master/slave ID selection • PC-beep connection when device held reset BLOCK DIAGRAM VOL/ MUTE VOL/ MUTE VOL/ MUTE VOL/ MUTE VOL/ MUTE Σ VOL/ MUTE Σ (37) MONOOUT (39,41) LNLVLOUT (35,36) LINEOUT Σ CD (18,20) LINEIN (23,24) VIDEO (16,17) AUX (14,15) PHONE (13) PCBEEP (12) MIC[1] (21) MIC[2] (22) 0dB/ 20dB MASTER/ SLAVE SELECT (45) CID[0] (46) CID[1] (6) BITCLK (10) SYNC (8) SDATAIN (5) SDATAOUT (11) RESETB (47) EAPD VOL/ MUTE OSC (2) XTLIN (3) XTLOUT VOL STEREO DAC SRC 3D Σ VOL STEREO ADC SRC VOL/ MUTE MUX VOL/ MUTE VOL/ MUTE MUX KEY: MONO STEREO RECORD MUX AND MUTE SERIAL I/F WM9703 |
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