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ADAU1401A:  SigmaDSP 28-/56-Bit Audio Processor with Two ADCs and Four DACs

Product Details

Product Status:Recommended for New Designs

The ADAU1401A is a complete, single-chip audio system with 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 limita-tions of speakers, amplifiers, and listening environments, providing dramatic improvements in perceived audio quality.

The signal processing of the ADAU1401A 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 performance. The ADAU1401A is a fully program-mable 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.

The ADAU1401A 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 ADAU1401A 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 ADAU1401A communicates through an I2C® bus or a 4-wire SPI port.

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)
  • Data Sheet, Rev. 0, 4/10

    FEATURES and BENEFITS

    • 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 master clock from crystal
    • See Data Sheet for Additional Information

    Functional Block Diagram for ADAU1401A

    Documentation

    Title Content Type File Type
    ADAU1401A: SigmaDSP 28-/56-Bit Audio Processor with Two ADCs and Four DACs Data Sheet (Rev A, 11/2010) (pdf, 1180 kB) Data Sheets PDF
    AN-951: Using Hardware Controls with SigmaDSP GPIO Pins  (pdf, 439 kB) Application Notes PDF
    AN-1006: Using the EVAL-ADUSB2EBZ  (pdf, 349 kB) Application Notes PDF
    AN-923: Designing a System Using the ADAU1701/ADAU1702 in Self-Boot Mode  (pdf, 134 kB) Application Notes PDF
    Sigma Studio Overview
    Familiar audio processing blocks can be wired together as in a schematic, and the compiler generates DSP-ready code and a control surface for setting and tuning parameters.
    Videos HTML
    VisualDSP++ 5.0 Linker and Utilities Manual (Revision 3.5, January 2011)  (pdf, 2290 kB) | Request a CD Software Manuals PDF
    UG-072: Evaluation Board User Guide for ADAU1401  (pdf, 888 kB) User Guides PDF
    SigmaDSP® Audio Processors Overview HTML
    Which SigmaDSP is right for my application? FAQs/RAQs HTML
    Which SigmaDSP parts are qualified for automotive applications? FAQs/RAQs HTML
    What evaluation boards are available for the SigmaDSP processors? FAQs/RAQs HTML
    What advanced algorithms are available for SigmaDSP? FAQs/RAQs HTML
    What is needed to boot a SigmaDSP processor? FAQs/RAQs HTML
    What is the processing power and RAM sizes of the different SigmaDSPs? FAQs/RAQs HTML
    How can I program and tune my target application using SigmaStudio? FAQs/RAQs HTML
    When should I use double precision and when should I use single precision filters? FAQs/RAQs HTML
    How do I protect my SigmaDSP design against power supply overvoltage and ESD? FAQs/RAQs HTML
    How can I get a copy of SigmaStudio? FAQs/RAQs HTML
    I already have a copy of SigmaStudio. How can I get the latest version? FAQs/RAQs HTML
    Where can I find a description of the changes made in the latest version of SigmaStudio? FAQs/RAQs HTML
    What are the PC requirements for SigmaStudio? FAQs/RAQs HTML
    What documentation is available for SigmaStudio? FAQs/RAQs HTML
    Can I use SigmaStudio without hardware connected? FAQs/RAQs HTML
    How can I write my own algorithms in SigmaStudio? FAQs/RAQs HTML
    After I link-compile-download my project, the bar at the bottom of SigmaStudio turns green. Does this mean my program downloaded to the DSP successfully? FAQs/RAQs HTML
    How can I check that I have proper communication between SigmaStudio and the SigmaDSP hardware? FAQs/RAQs HTML
    How can I see exactly what SigmaStudio is writing to the target hardware? FAQs/RAQs HTML
    How do I change the sampling rate of my design in SigmaStudio? FAQs/RAQs HTML
    Where can I see how much of the SigmaDSP resources my project consumes? FAQs/RAQs HTML
    My signal flow is running out of instructions. What can I do to save resources? FAQs/RAQs HTML
    I can't use the maximum delay memory in my project. What's happening? FAQs/RAQs HTML
    When the signal input to my compressor is above 6 dB, the compression stops and my signal starts increasing. What's happening? FAQs/RAQs HTML
    How can I eliminate pops when changing the delay parameter at run-time? FAQs/RAQs HTML
    My application requires that I use multiple blocks that generate many addresses that I then have to map to my microcontroller code. Can I fix specific memory addresses for specific blocks to avoid all this mapping overhead? FAQs/RAQs HTML
    What is the difference between the ADAU1701, ADAU1702, and ADAU1401? FAQs/RAQs HTML
    What evaluation boards are available for the ADAU1701, ADAU1702, and ADAU1401? FAQs/RAQs HTML
    How can I tune my own hardware design using SigmaStudio? FAQs/RAQs HTML
    How can I use the multipurpose pins on the ADAU1401/1701/1702? FAQs/RAQs HTML
    Can I use selfboot to load multiple different programs? FAQs/RAQs HTML
    Where can I get further support for the SigmaDSP? FAQs/RAQs HTML
    Glossary of EE Terms Glossary HTML

    Design Tools,Models,Drivers & Software

    Title Content Type File Type
    Firmware Loader for SigmaDSPs Device Drivers HTML
    ADAU1701 Sound Audio System Linux Driver (Wiki Site) Device Drivers HTML

    Evaluation Kits & Symbols & Footprints

    Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

    Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

    SampleSample & Buy

    Price, packaging, availability

    ADAU1401A Model Options
    Model Package Pins Temp.
    Range
    Packing,
    Qty
    Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    ADAU1401AWBSTZ Status: Production LQFP 1.4 MM 48 Auto Tray, 250 $6.29 $5.68 Y  Material Info Notify Me Purchase Sample
    ADAU1401AWBSTZ-RL Status: Production LQFP 1.4 MM 48 Auto Reel, 2000 - $5.68 Y  Material Info Notify Me Purchase
    Price Table Help

    The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

    ADUSB2EBZ Evaluation Board
    Model Description Price RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    EVAL-ADUSB2EBZ Status: Production USB Interface $80.00 Yes -
    ADAU1401 Evaluation Board
    Model Description Price RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    EVAL-ADAU1401AEBZ Status: Production Full Capability Engineering Evaluation Board $599.00 Yes -
    EVAL-ADAU1701MINIZ Status: Production Limited Capability Evaluation Board $195.00 Yes -

    Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

    Check Inventory & Purchase

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