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AD1839A 데이터시트(PDF) 1 Page - Analog Devices |
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AD1839A 데이터시트(HTML) 1 Page - Analog Devices |
1 / 24 page 2 ADC, 6 DAC, 96 kHz, 24-Bit Sigma-Delta Codec AD1839A Rev. B 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. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. 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 © 2004 Analog Devices, Inc. All rights reserved. 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 1 DAC Supports 16-/20-/24-bit word lengths Multibit Σ-∆ modulators with perfect differential linearity restoration for reduced idle tones and noise floor Data-directed scrambling DACs—least sensitive to jitter Single-ended output ADCs: −95 dB THD + N, 105 dB SNR and dynamic range DACs: −92 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 and soft power-down mode Flexible serial data port with right-justified, left-justified, I2S compatible, and DSP serial modes TDM interface mode supports 8-in/8-out operation 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 process GENERAL DESCRIPTION The AD1839A is a high performance single-chip codec that features three stereo DACs and one stereo ADC. Each DAC comprises a high performance digital interpolation filter, a multibit Σ-∆ modulator featuring Analog Devices’ patented technology, and a continuous-time voltage-out analog section. Each DAC has independent volume control and clickless mute functions. The ADC comprises two 24-bit conversion channels with multibit Σ-∆ modulators and decimation filters. The AD1839A also contains an on-chip reference with a nominal value of 2.25 V. The AD1839A contains a flexible serial interface that allows glueless connection to a variety of DSP chips, AES/EBU receivers, and sample rate converters. The AD1839A can be configured in left-justified, right-justified, I2S, or DSP compati- ble serial modes. Control of the AD1839A is achieved by means of an SPI® compatible serial port. While the AD1839A can be operated from a single 5 V supply, it also features a separate supply pin for its digital interface that allows the device to be interfaced to other devices using 3.3 V power supplies. The AD1839A is available in a 52-lead MQFP package and is specified for the −40°C to +85°C industrial temperature range. FUNCTIONAL BLOCK DIAGRAM OUTL1 CONTROL PORT CLOCK FILTD FILTR ADCLP ADCLN ADCRP ADCRN DLRCLK DBCLK DSDATA1 DSDATA2 DSDATA3 DAUXDATA MCLK ODVDD DVDD AVDD AVDD DVDD AGND DGND CIN CLATCH CCLK COUT DIGITAL FILTER DIGITAL FILTER M/S VOLUME SERIAL DATA I/O PORT DIGITAL FILTER VREF OUTR1 VOLUME OUTL2 VOLUME DIGITAL FILTER OUTR2 VOLUME OUTL3 VOLUME DIGITAL FILTER OUTR3 VOLUME Σ-∆ ADC AAUXDATA3 AD1839A ASDATA ABCLK ALRCLK AGND AGND AGND DGND Σ-∆ ADC Σ-∆ DAC Σ-∆ DAC Σ-∆ DAC PD/RST Figure 1. |
유사한 부품 번호 - AD1839A_15 |
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유사한 설명 - AD1839A_15 |
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