ADAU1452

SigmaDSP Digital Audio Processor
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Product Details

The ADAU1452/ADAU1451/ADAU1450 are automotive qualified audio processors that far exceed the digital signal processing capabilities of earlier SigmaDSP® devices. The restructured hardware architecture is optimized for efficient audio processing. The audio processing algorithms are realized in sample-by-sample and block-by-block paradigms that can both be executed simul-taneously in a signal processing flow created using the graphical programming tool, SigmaStudio™. The restructured digital signal processor (DSP) core architecture enables some types of audio processing algorithms to be executed using significantly fewer instructions than were required on previous SigmaDSP generations, leading to vastly improved code efficiency.

The 1.2 V, 32-bit DSP core can run at frequencies of up to 294.912 MHz and execute up to 6144 instructions per sample at the standard sample rate of 48 kHz. However, in addition to industry standard rates, a wide range of sample rates are available. The integer PLL and flexible clock generator hardware can generate up to 15 audio sample rates simultaneously. These clock generators, along with the on board asynchronous sample rate converters (ASRCs) and a flexible hardware audio routing matrix, make the ADAU1452/ADAU1451/ADAU1450 ideal audio hubs that greatly simplify the design of complex multirate audio systems.

The ADAU1452/ADAU1451/ADAU1450 interface with a wide range of ADCs, DACs, digital audio devices, amplifiers, and control circuitry, due to their highly configurable serial ports, S/PDIF interfaces (on the ADAU1452 and ADAU1451), and multipurpose input/output pins. They can also directly interface with PDM output MEMS microphones, thanks to integrated decimation filters specifically designed for that purpose.

Independent slave and master I2C/SPI control ports allow the ADAU1452/ADAU1451/ADAU1450 not only to be programmed and configured by an external master device, but also to act as masters that can program and configure external slave devices directly. This flexibility, combined with self boot functionality, enables the design of standalone systems that do not require any external input to operate.

The power efficient DSP core executes full programs while consuming only a few hundred milliwatts (mW) of power and can run at a maximum program load while consuming less than a watt, even in worst case temperatures exceeding 100°C. This relatively low power consumption and small footprint make the ADAU1452/ADAU1451/ADAU1450 ideal replacements for large, general-purpose DSPs that consume more power at the same processing load.

DIFFERENCES BETWEEN THE ADAU1452, ADAU1451, AND ADAU1450

The three variants of this device are differentiated by memory, DSP core frequency, availability of S/PDIF interfaces, and ASRC configuration.

Because the ADAU1450 does not contain an S/PDIF receiver or transmitter, the SPDIFIN and SPDIFOUT pins are nonfunctional. Also, the settings of any registers related to the S/PDIF input or output in the ADAU1450 do not have any effect on the operation of the device. Likewise, because the ADAU1450 does not contain ASRCs, the settings of any registers related to the ASRCs in the ADAU1450 do not have any effect on the operation of the device.

APPLICATIONS

  • Automotive audio processing
    Head units
    Navigation systems
    Rear seat entertainment systems
    DSP amplifiers (sound system amplifiers)
  • Commercial and professional audio processing

Product Lifecycle

checked Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits

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EVAL-ADAU1452 Circuit Diagram

Product Details

This evaluation board provides access to the digital serial audio ports of the ADAU1452, as well as some of its general purpose I/O. Analog I/O is provided by the included AD1938 codec. The ADAU1452 core is controlled by Analog Devices, Inc., SigmaStudio™ software, which interfaces to the board via a USB connection. The board is powered by a 6 V DV supply, which is regulated to the voltages required on the board. The printed circuit board (PCB) is a 4-layer design, with a single ground plane and a single power plane on the inner layers. The board contains connectors for external analog inputs and outputs and optical S/PDIF interfaces. The master clock is provided by the integrated oscillator circuit and on-board 12.288 MHz passive crystal.

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.

ADAU1452 Material Declaration
PCN-PDN Information Quality And Reliability Symbols and Footprints

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Overview

3 Reviews
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Most Helpful Review

by Jan
Very interesting IC. In conjunction with the Sigma Studio opens the way for non DPS skilled persons. Maybe it would be good to extend the studio with additional functions(mono reverb, chorus..)

Most Recent Review

by Eli
Was up and running in about 15 minutes. I was able to start playing around with tone controls on my guitar very quickly. I love the sigma studio approach. It very easy to edit parameters in real time.

All Reviews

by Eli, 14 Jan 15
Awesome
Was up and running in about 15 minutes. I was able to start playing around with tone controls on my guitar very quickly. I love the sigma studio approach. It very easy to edit parameters in real time.
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by TomC, 16 Apr 14
Low Quality of Power Supply forces fail of Total Product
While I am aware that the ADAU1452 and the evaluation board are most powerful, the power supply was defective. After attempting to get the board operational - spending an hour - I'd noticed that the power LED was not on but periodically flasihing. I had immediately filed a report with ADI and had gotten NO RESPONSE for over a week - then I got a response saying I had needed to contact some other website! It's been over a month now and I still am not able to use this board - that I paid for out of my personal funds. Most frustrating and uncacceptalbe! thank youf or your attention, TomC (even this webpage design is flawed as I'm typing down here)
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by Jan, 11 Mar 14
Very interesting IC.
Very interesting IC. In conjunction with the Sigma Studio opens the way for non DPS skilled persons. Maybe it would be good to extend the studio with additional functions(mono reverb, chorus..)
Was this Helpful?Helpful(5)

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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.