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ADAV803 Datasheet(PDF) 1 Page - Analog Devices |
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ADAV803 Datasheet(HTML) 1 Page - Analog Devices |
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1 / 61 page  Audio Codec for Recordable DVD ADAV803 Rev. A Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2004–2007 Analog Devices, Inc. All rights reserved. FEATURES Stereo analog-to-digital converter (ADC) Supports 48 kHz/96 kHz sample rates 102 dB dynamic range Single-ended input Automatic level control Stereo digital-to-analog converter (DAC) Supports 32 kHz/44.1 kHz/48 kHz/96 kHz/192 kHz sample rates 101 dB dynamic range Single-ended output Asynchronous operation of ADC and DAC Stereo sample rate converter (SRC) Input/output range: 8 kHz to 192 kHz 140 dB dynamic range Digital interfaces Record Playback Auxiliary record Auxiliary playback S/PDIF (IEC 60958) input and output Digital interface receiver (DIR) Digital interface transmitter (DIT) PLL-based audio MCLK generators Generates required DVDR system MCLKs Device control via I2C-compatible serial port 64-lead LQFP package FUNCTIONAL BLOCK DIAGRAM ANALOG-TO-DIGITAL CONVERTER REFERENCE SRC DIGITAL-TO-ANALOG CONVERTER ADAV803 DIT AUX DATA OUTPUT RECORD DATA OUTPUT CONTROL REGISTERS PLL DIGITAL INPUT/OUTPUT SWITCHING MATRIX (DATA PATH) PLAYBACK DATA INPUT AUX DATA INPUT DIR VINL VINR VREF VOUTR FILTD OLRCLK OBCLK OSDATA OAUXLRCLK OAUXBCLK OAUXSDATA DITOUT ZEROL/INT ZEROR VOUTL Figure 1. APPLICATIONS DVD-recordable All formats CD-R/W GENERAL DESCRIPTION The ADAV803 is a stereo audio codec intended for applications such as DVD or CD recorders that require high performance and flexible, cost-effective playback and record functionality. The ADAV803 features Analog Devices, Inc. proprietary, high performance converter cores to provide record (ADC), playback (DAC), and format conversion (SRC) on a single chip. The ADAV803 record channel features variable input gain to allow for adjustment of recorded input levels and automatic level control, followed by a high performance stereo ADC whose digital output is sent to the record interface. The record channel also features level detectors that can be used in feedback loops to adjust input levels for optimum recording. The playback channel features a high performance stereo DAC with independent digital volume control. The sample rate converter (SRC) provides high performance sample rate conversion to allow inputs and outputs that require different sample rates to be matched. The SRC input can be selected from playback, auxiliary, DIR, or ADC (record). The SRC output can be applied to the playback DAC, both main and auxiliary record channels, and a DIT. Operation of the ADAV803 is controlled via an I2C®-compatible serial interface, which allows the programming of individual control register settings. The ADAV803 operates from a single analog 3.3 V power supply and a digital power supply of 3.3 V with an optional digital interface range of 3.0 V to 3.6 V. The part is housed in a 64-lead LQFP package and is character- ized for operation over the commercial temperature range of −40°C to +85°C. |
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