ADAU1701

SigmaDSP® 28/56-Bit Audio Processor with Two ADCs and Four DACs
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Product Details

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.

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)

Product Lifecycle

checked Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits

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Product Details

This page contains evaluation board documentation and ordering information for evaluating the ADAU1701.

Product Details

The Analog Devices USBi “USB Interface” (EVAL-ADUSB2EBZ) board is the interface between your PC's USB port and SigmaDSP hardware's data input pins. This interface can be used with any evaluation board which includes an External SPI/I²C header (Aardvark Header). The EVAL-ADUSB2EBZ board is capable of both SPI and I²C communication (which is user selectable) and can supply IOVDD of either 3.3V or 1.8V.The USBi interface is powered from the computer's USB port.

To Install the USBi Board:
  • Connect the USB cable to the USBi Board a spare USB port on your PC.
  • The Windows “Found New Hardware Wizard” will launch.
  • Choose “Install from a list or a specific location” and click “Next”.
  • Select “Search for the best driver in these locations” and Check the box for “Include this location in the search.”
  • Press the “Browse” button and locate the appropriate driver file in the SigmaStudio application folder (default folder is C:\Program Files\Analog Devices Inc\Sigma Studio\USB drivers): Select the CyUSB.inf file.
  • Click “Continue Anyway” if you're prompted with “This software has not passed Windows Logo testing.”
Using USBi in SigmaStudio:
To communication between SigmaStudio and the USBi board, a communication channel block must be added to the Schematic design. To locate the block, select the Hardware Configuration Tab, int the ToolBox or Tree ToolBox window choose the “Communication Channels” category, and select the USBi block.

USBi

This block provides connections for multiple processors (ICs / DSPs), allowing you to use multiple processors in a single design. This block allows you to explicitly specify both the communication protocol (SPI or I²C) and the part's address, I²C address or SPI clatch line. The DSP hardware's address must match the block's selected address for communication to function properly. See the parts data sheet for more information about addressing (e.g. ADR_SEL, ADDR0, or ADDR1 pins). The default USBi protocol is I²C, to enable SPI, you must first select an SPI address in the block's drop down menu and then perform three write operations (e.g. press the write button the Register Read/Write Window 3 times). The USBi hardware has LEDs which indicate the current mode, I²C or SPI.

Software & Systems Requirements

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Software Development Tools

Tools & Simulations

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Design Resources

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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

ADAU1701 Material Declaration
PCN-PDN Information Quality And Reliability Symbols and Footprints

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Overview

4 Reviews
1 out of 2 (50%) customers recommend this product.
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Most Helpful Review

by EETwidget
I have been working with this little DSP for a few month now and I must say, it is a very capable little performer. I am developing a DSP systems using the ADAU1701 as the low end model and ADAU1442 for the high end. The 1701 is a great solution for a cheap yet feature rich DSP. With DACs and A/Ds built in, it's possible to develop a complete DSP system that requires few external components. When operating in self boot mode, this chip is almost too easy to use. Because of the way SigmaStudio handles dynamic memory, there are challenges when trying to use a ucontroller. Although the ADAU1442 proved easier to to develop, enough info can be found on analog Devices Engineering Forum to assist in a quick development. Overall I'm happy with the DSP, it fits well in our low end DSP and most code I write is compatible with the ADAU1442

Most Recent Review

by Anonymous
Segma DSP powerful audio processor,The tool allows not to write DSP code to experience design engineer easily DSP in its design, and the tool is still strong enough to meet the requirements of the design engineer with experience of DSP. Due to the SigmaDSP architecture design taking into account the SigmaStudio tool, so the generated code efficiency is 100%; the use of this tool will not reduce the processing ability of the DSP. The SigmaStudio tool evaluation board and ADI company and product design connection to provide complete on-chip real-time IC control.

All Reviews

by Anonymous, 13 Aug 14
powerful audio processor
Segma DSP powerful audio processor,The tool allows not to write DSP code to experience design engineer easily DSP in its design, and the tool is still strong enough to meet the requirements of the design engineer with experience of DSP. Due to the SigmaDSP architecture design taking into account the SigmaStudio tool, so the generated code efficiency is 100%; the use of this tool will not reduce the processing ability of the DSP. The SigmaStudio tool evaluation board and ADI company and product design connection to provide complete on-chip real-time IC control.
Was this Helpful?Helpful(0)
by Dick, 4 Jun 14
Problems with documentation and assistance
I'm giving the product an average review. That is because I have been unable to complete my design. I did contact the Sigma Studio help department and the someone (name unknown) did not return the call. i again went to the help site and sent a note with the issue i was trying to resolve. I still do not have an answer. i sort of need an answer to my question so I can finalize my design
Was this Helpful?Helpful(1)
by EETwidget, 9 Apr 14
ADAU1701
I have been working with this little DSP for a few month now and I must say, it is a very capable little performer. I am developing a DSP systems using the ADAU1701 as the low end model and ADAU1442 for the high end. The 1701 is a great solution for a cheap yet feature rich DSP. With DACs and A/Ds built in, it's possible to develop a complete DSP system that requires few external components. When operating in self boot mode, this chip is almost too easy to use. Because of the way SigmaStudio handles dynamic memory, there are challenges when trying to use a ucontroller. Although the ADAU1442 proved easier to to develop, enough info can be found on analog Devices Engineering Forum to assist in a quick development. Overall I'm happy with the DSP, it fits well in our low end DSP and most code I write is compatible with the ADAU1442
Was this Helpful?Helpful(1)
by Anonymous, 25 Sep 12
I do not know what to make of it
I playing with the ADAU without the EVAL-Board in connection with a PIC-mikrocontroller to transfer the data over I2C-bus. I wrote software to transfer the exported files from SIGMA-Studio into the PIC. I having no success. With the same files the ADAU making different results. If the DAC is open, I can hear a loud base noise, sometimes doing the ADAU what he should. But: there is no different between the DAC-channels. I listen everytimes MONO. So I thing the ADAU is defective and I have ordered a new sample. May be more luck in a secound run.
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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.


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Evaluation Boards Pricing displayed is based on 1-piece.
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.