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AD1953 Dataheets PDF



Part Number AD1953
Manufacturers Analog Devices
Logo Analog Devices
Description SigmaDSP 3-Channel/ 26-Bit Signal Processing DAC
Datasheet AD1953 DatasheetAD1953 Datasheet (PDF)

a SigmaDSP™ 3-Channel, 26-Bit Signal Processing DAC AD1953 FEATURES APPLICATIONS 5 V 3-Channel Audio DAC System 2.0/2.1 Channel Audio Systems (2 Main Channels Digital Audio Output (2-Channel or 6-Channel Plus Subwoofer) Packed Mode) Multichannel Automotive Sound Systems Accepts Sample Rates up to 48 kHz Multimedia Audio 7 Biquad Filter Sections per Channel Mini Component Stereo Dual Dynamic Processor with Arbitrary Input/Output Home Theater Systems (AC-3 Postprocessor) Curve and Adjustable Tim.

  AD1953   AD1953


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a SigmaDSP™ 3-Channel, 26-Bit Signal Processing DAC AD1953 FEATURES APPLICATIONS 5 V 3-Channel Audio DAC System 2.0/2.1 Channel Audio Systems (2 Main Channels Digital Audio Output (2-Channel or 6-Channel Plus Subwoofer) Packed Mode) Multichannel Automotive Sound Systems Accepts Sample Rates up to 48 kHz Multimedia Audio 7 Biquad Filter Sections per Channel Mini Component Stereo Dual Dynamic Processor with Arbitrary Input/Output Home Theater Systems (AC-3 Postprocessor) Curve and Adjustable Time Constants Musical Instruments 0 ms to 6 ms Variable Delay/Channel for Speaker Alignment In-Seat Sound Systems (Aircraft, Motor Coaches) Stereo Spreading Algorithm for Phat Stereo™ Effect Program RAM Allows Complete New Program Download PRODUCT OVERVIEW via SPI Port The AD1953 is a complete 26-bit, single-chip, 3-channel digital Parameter RAM Allows Complete Control of More Than audio playback system with built-in DSP functionality for speaker 200 Parameters via SPI Port equalization, dual-band compression/limiting, delay compensaSPI Port Features Safe-Upload Mode for Transparent tion, and image enhancement. These algorithms can be used to Filter Updates compensate for real-world limitations of speakers, amplifiers, 2 Control Registers Allow Complete Control of Modes and listening environments, resulting in a dramatic improvement and Memory Transfers of perceived audio quality. Differential Output for Optimum Performance The signal processing used in the AD1953 is comparable to that 112 dB Signal-to-Noise (Not Muted) at 48 kHz Sample found in high end studio equipment. Most of the processing is Rate (A-Weighted Stereo) done in full 48-bit double-precision mode, resulting in very good 70 dB Stop-Band Attenuation low level signal performance and the absence of limit cycles or On-Chip Clickless Volume Control idle tones. The compressor/limiter uses a sophisticated two-band Hardware and Software Controllable Clickless Mute algorithm often found in high end broadcast compressors. Digital De-emphasis Processing for 32 kHz, 44.1 kHz, 48 kHz (continued on page 9) Sample Rates Flexible Serial Data Port with Right-Justified, Left-Justified, I2S Compatible, and DSP Serial Port Modes Auxiliary Digital Input Graphical Custom Programming Tools 48-Lead LQFP Plastic Package FUNCTIONAL BLOCK DIAGRAM SERIAL DATA OUTPUT 3 3 AD1953 SERIAL DATA INPUTS 3 3 MASTER CLOCK OUTPUT AUDIO DATA MUX 26 ؋ 22 DSP CORE DATA FORMAT: 3.23 (SINGLE PRECISION) 3.45 (DOUBLE PRECISION) MCLK MUX MCLK GENERATOR (256/512 fS) DAC – L DAC – R ANALOG OUTPUTS MASTER CLOCK INPUTS DAC – SW AUX SERIAL DATA INPUT SPI DATA OUTPUT SPI INPUT 3 DATA CAPTURE OUT/TDM OUT SERIAL CONTROL INTERFACE RAM ROM DIGITAL OUTPUT 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. Trademarks and registered trademarks are the property of their respective companies. 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 © 2003 Analog Devices, Inc. All rights reserved. AD1953 TABLE OF CONTENTS FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 APPLICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 PRODUCT OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 FUNCTIONAL BLOCK DIAGRAM . . . . . . . . . . . . . . . . . 1 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . 6 ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Package Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 PIN CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 PIN FUNCTION DESCRIPTIONS . . . . . . . . . . . . . . . . . . 7 TYPICAL PERFORMANCE CHARACTERISTICS . . . . . 8 PERFORMANCE PLOTS . . . . . . . . . . . . . . . . . . . . . . . . . . 8 PRODUCT OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Pin Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 SIGNAL PROCESSING . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Signal Processing Overview . . . . . . . . . . . . . . . . . . . . . . . 12 Numeric Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Coefficient Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Internal DSP Signal Data Format . . . . . . . . . . . . . . . . . . 13 High-Pass Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Biquad Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Volume ..


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