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AD1838AS Datasheet(PDF) 1 Page - Analog Devices |
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AD1838AS Datasheet(HTML) 1 Page - Analog Devices |
1 / 24 page REV. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a AD1838 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 2002 2 ADC, 6 DAC, 96 kHz, 24-Bit - Codec FEATURES 5 V Stereo Audio System with 3.3 V Tolerant Digital Interface Supports up to 96 kHz Sample Rates 192 kHz Sample Rate Available on One DAC Supports 16-/20-/24-Bit Word Lengths Multibit Sigma-Delta Modulators with “Perfect Differential Linearity Restoration” for Reduced Idle Tones and Noise Floor Data Directed Scrambling DACs—Least Sensitive to Jitter Differential Output for Optimum Performance ADCs: –95 dB THD + N, 105 dB SNR and Dynamic Range DACs: –95 dB THD + N, 108 dB SNR and Dynamic Range On-Chip Volume Controls per Channel with 1024 Step Linear Scale DAC and ADC Software Controllable Clickless Mutes Digital De-Emphasis Processing Supports 256 fS, 512 fS, and 768 fS Master Mode Clocks Power-Down Mode Plus Soft Power-Down Mode Flexible Serial Data Port with Right-Justified, Left- Justified, I2S-Compatible, and DSP Serial Port Modes TDM Interface Mode Supports 8 In/8 Out Using a Single SHARC® SPORT 52-Lead MQFP Plastic Package APPLICATIONS DVD Video and Audio Players Home Theater Systems Automotive Audio Systems Audio/Visual Receivers Digital Audio Effects Processors FUNCTIONAL BLOCK DIAGRAM OUTLP1 OUTLN1 CONTROL PORT CLOCK FILTD FILTR ADCLP ADCLN ADCRP ADCRN DLRCLK DBCLK DSDATA1 DSDATA2 DSDATA3 DAUXDATA MCLK ASDATA ABCLK ALRCLK ODVDD DVDD AVDD AVDD DVDD AGND AGND AGND AGND DGND DGND CIN CLATCH CCLK COUT DIGITAL FILTER PD/RST M/S - ADC VOLUME SERIAL DATA I/O PORT DIGITAL FILTER - DAC VREF OUTRP1 OUTRN1 VOLUME OUTLP2 OUTLN2 VOLUME DIGITAL FILTER - DAC OUTRP2 OUTRN2 VOLUME OUTLP3 OUTLN3 VOLUME DIGITAL FILTER - DAC OUTRP3 OUTRN3 VOLUME DIGITAL FILTER - ADC AAUXDATA3 AD1838 PRODUCT OVERVIEW The AD1838 is a high performance single-chip codec featuring three stereo DACs and one stereo ADC. Each DAC comprises a high performance digital interpolation filter, a multibit sigma-delta modulator featuring Analog Devices’ patented technology, (continued on Page 11) SHARC is a registered trademark of Analog Devices, Inc. |
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