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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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WM9707 데이터시트(PDF) 1 Page - Wolfson Microelectronics plc |
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WM9707 데이터시트(HTML) 1 Page - Wolfson Microelectronics plc |
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1 / 30 page  WM9707 AC’97 Revision 2.1 Audio Codec with SPDIF Output Advanced Information, January 2001, Rev 2.2 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 http://www.wolfson.co.uk Advanced Information data sheets contain preliminary data on new products in the preproduction phase of development. Supplementary data will be published at a later date. 2001 Wolfson Microelectronics Ltd . DESCRIPTION WM9707 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 enhancement, line-level outputs, hardware sample rate conversion, master/slave mode operation and SPDIF output. WM9707 is interchangeable with AC’97 codecs from Wolfson and other suppliers. The WM9707 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 • Very low standby power • Variable rate audio (VRA) support • Analogue 3D stereo enhancement • Line level outputs • Supports Rev. 2.1 specified modem sample rates and filtering • Master/slave ID selection • PC-beep connection when device held reset • SPDIF digital output 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) MIC1 (21) MIC2 (22) 0dB/ 20dB MASTER/ SLAVE SELECT (48) SPDIF (45) CID (6) BITCLK (10) SYNC (8) SDATAIN (5) SDATAOUT (47) EAPD VOL/ MUTE OSC (2) XTLIN (3) XTLOUT VOL/ MUTE 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 WM9707 VOL/ MUTE (44) SPDIF ENABLE (11) RESETB |
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