SigmaDSP 28-/56-Bit Audio Processor with Two ADCs and Four ... SigmaDSP 28-/56-Bit Audio Processor with

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  • SigmaDSP 28-/56-Bit Audio Processor with Two ADCs and Four DACs

    ADAU1701

    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: 781.461.3113 ©2007–2011 Analog Devices, Inc. All rights reserved.

    FEATURES 28-/56-bit, 50 MIPS digital audio processor 2 ADCs: SNR of 100 dB, THD + N of −83 dB 4 DACs: SNR of 104 dB, THD + N of −90 dB Complete standalone operation Self-boot from serial EEPROM Auxiliary ADC with 4-input mux for analog control GPIOs for digital controls and outputs Fully programmable with SigmaStudio graphical tool 28-bit × 28-bit multiplier with 56-bit accumulator for full

    double-precision processing Clock oscillator for generating a master clock from crystal PLL for generating master clock from 64 × fS, 256 × fS,

    384 × fS, or 512 × fS clocks Flexible serial data input/output ports with I2S-compatible,

    left-justified, right-justified, and TDM modes Sampling rates of up to 192 kHz are supported On-chip voltage regulator for compatibility with 3.3 V systems 48-lead, plastic LQFP

    APPLICATIONS Multimedia speaker systems MP3 player speaker docks Automotive head units Minicomponent stereos Digital televisions Studio monitors Speaker crossovers Musical instrument effects processors In-seat sound systems (aircraft/motor coaches)

    GENERAL DESCRIPTION The ADAU1701 is a complete single-chip audio system with a 28-/56-bit audio DSP, ADCs, DACs, and microcontroller-like control interfaces. Signal processing includes equalization, cross- over, bass enhancement, multiband dynamics processing, delay compensation, speaker compensation, and stereo image widening. This processing can be used to compensate for real-world limitations of speakers, amplifiers, and listening environments, providing dramatic improvements in perceived audio quality.

    Its signal processing is comparable to that found in high end studio equipment. Most processing is done in full 56-bit, double precision mode, resulting in very good low level signal perfor- mance. The ADAU1701 is a fully programmable DSP. The easy to use SigmaStudio™ software allows the user to graphically configure a custom signal processing flow using blocks such as biquad filters, dynamics processors, level controls, and GPIO interface controls.

    ADAU1701 programs can be loaded on power-up either from a serial EEPROM through its own self-boot mechanism or from an external microcontroller. On power-down, the current state of the parameters can be written back to the EEPROM from the ADAU1701 to be recalled the next time the program is run.

    Two Σ-Δ ADCs and four Σ-Δ DACs provide a 98.5 dB analog input to analog output dynamic. Each ADC has a THD + N of −83 dB, and each DAC has a THD + N of −90 dB. Digital input and output ports allow a glueless connection to additional ADCs and DACs. The ADAU1701 communicates through an I2C® bus or a 4-wire SPI port.

    http://www.analog.com/adau1701

  • IMPORTANT LINKS FOR THE ADAU1701* Last content update 3/19/2013 6:33 PM.

    Selection Table for SigmaDSP Audio Processors

    HARDWARE & SOFTWARE

    Analog Audio Input, Class-D Output with the ADAU1701 SigmaDSP Codec, Low Power SSM2306 Class-D Amplifier, and ADP3336 LDO Regulator (CN0162)

    ADAU1701 Evaluation Board

    CAD Symbols & Footprints

    SigmaStudio™ Graphical Development Tool

    Firmware Loader for SigmaDSPs

    ADAU1701 Sound Audio System Linux Driver

    DESIGN COLLABORATION COMMUNITY

    Collaborate online with the ADI support team and other designers about select ADI products.

    Follow us on Twitter: www.twitter.com/ADI_News

    DESIGN SUPPORT Submit your support request here:

    Linear and Data Converters Embedded Processing and DSP

    Telephone our Customer Interaction Centers toll free: Americas: 1-800-262-5643 Europe: 00800-266-822-82 China: 4006-100-006 India: 1800-419-0108 Russia: 8-800-555-45-90

    Quality and Reliability Lead(Pb)-Free Data

    RELATED DOCUMENTATION SigmaDSP® Audio Processors Overview

    AN-951: Using Hardware Controls with SigmaDSP GPIO Pins

    AN-1006: Using the EVAL-ADUSB2EBZ

    AN-923: Designing a System Using the ADAU1701/ADAU1702 in Self-Boot Mode

    Sigma Studio Overview Video

    VisualDSP++ 5.0 Linker and Utilities Manual

    UG-072: Evaluation Board User Guide for ADAU1401

    RAQs index

    PURCHASING & CONTACT INFORMATION

    ADAU1701 View Price & Packaging Request Evaluation Board Request Samples Check Inventory & Purchase

    Find Local Distributors

    *This page was dynamically generated by Analog Devices, Inc. and inserted into this data sheet. Note: Dynamic changes to the content on this page (labeled ‘important links’) does not

    constitute a change to the revision number of the product data sheet. This content may be frequently modified.

    http://www.analog.com/adau1701?doc=adau1701.pdf http://www.analog.com/ps/psthandler.aspx?pstid=10304&la=en?doc=adau1701.pdf http://www.analog.com/en/circuits-from-the-lab/CN0162/vc.html?doc=adau1701.pdf http://www.analog.com/en/circuits-from-the-lab/CN0162/vc.html?doc=adau1701.pdf http://www.analog.com/en/circuits-from-the-lab/CN0162/vc.html?doc=adau1701.pdf http://www.analog.com/en/circuits-from-the-lab/CN0162/vc.html?doc=adau1701.pdf http://www.analog.com/en/audiovideo-products/audio-signal-processors/adau1701/products/EVAL-ADAU1701/eb.html?doc=adau1701.pdf http://www.analog.com/en/audiovideo-products/audio-signal-processors/adau1701/products/symbols-footprints.html?doc=adau1701.pdf http://www.analog.com/en/audiovideo-products/audio-signal-processors/adau1701/products/sigmastudio-overview/CU_over_SigmaStudio_graphical_dev_tool_overview/resources/fca.html?doc=adau1701.pdf http://wiki.analog.com/resources/tools-software/linux-drivers/sound/sigma?doc=adau1701.pdf http://wiki.analog.com/resources/tools-software/linux-drivers/sound/adau1701?doc=adau1701.pdf http://ez.analog.com/index.jspa?doc=adau1701.pdf http://www.twitter.com/ADI_News https://form.analog.com/Form_Pages/support/standard_linear/contacttechSupport.aspx?doc=adau1701.pdf http://forms.analog.com/Form_Pages/support/dsp/dspSupport.asp?doc=adau1701.pdf http://www.analog.com/en/quality-and-reliability/content/index.html?doc=adau1701.pdf http://www.analog.com/en/quality-and-reliability/adi-pb-free/content/master_listings_product_status_availability_rohs/fca.html?doc=adau1701.pdf http://www.analog.com/en/audiovideo-products/audio-signal-processors/adau1701/products/overview/CU_over_SigmaDSP_overview/resources/fca.html?doc=adau1701.pdf http://www.analog.com/static/imported-files/application_notes/AN-951.pdf?doc=adau1701.pdf http://www.analog.com/static/imported-files/application_notes/AN-1006.pdf?doc=adau1701.pdf http://www.analog.com/static/imported-files/application_notes/AN-923.pdf?doc=adau1701.pdf http://www.analog.com/static/imported-files/application_notes/AN-923.pdf?doc=adau1701.pdf http://videos.analog.com/video/products/audiovideo-products/760465732001/SigmaStudio-Graphical-Development-Tool--Overview/ http://www.analog.com/static/imported-files/software_manuals/50_lnkr_mn_rev_3.5.pdf?doc=adau1701.pdf http://www.analog.com/static/imported-files/user_guides/UG-072.pdf?doc=adau1701.pdf http://www.analog.com/en/content/RAQ_index/fca.html?doc=adau1701.pdf http://www.analog.com/adau1701?doc=adau1701.pdf http://www.analog.com/adau1701?doc=adau1701.pdf http://www.analog.com/adau1701?doc=adau1701.pdf http://www.analog.com/adau1701?doc=adau1701.pdf http://www.analog.com/adau1701?doc=adau1701.pdf http://www.analog.com/salesdir/continent.asp?doc=adau1701.pdf http://www.analog.com/en/precision-op-amps/low-offset-voltage-amplifiers/ada4528-1/products/symbols-footprints.html?doc=ada4528-1_4528-2.pdf http://www.facebook.com/sharer.php?s=100&p%5Burl%5D=http://www.analog.com/adau1701 http://twitter.com/?status=RT:%20@ADI_News%20http://www.analog.com/adau1701

  • ADAU1701

    Rev. B | Page 2 of 52

    TABLE OF CONTENTS Features .............................................................................................. 1 

    Applications....................................................................................... 1 

    General Description ......................................................................... 1 

    Revision History ............................................................................... 3 

    Functional Block Diagram .............................................................. 4 

    Specifications..................................................................................... 5 

    Analog Performance .................................................................... 5 

    Digital Input/Output.................................................................... 6 

    Power.............................................................................................. 6 

    Temperature Range ...................................................................... 6 

    PLL and Oscillator..............