ADAU1701

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

Data Sheet

Rev. C

Production

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Overview

Features and Benefits
Product Details

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 a master clock from crystal
PLL for generating master clock from 64 × f_S, 256 × f_S, , 384 × f_S, , or 512 × f_S, clocks
See data sheet for additional features

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 Categories

Audio and Video Products
- SigmaDSP Audio Processors
- Audio CODECs

Processors and Microcontrollers
- SigmaDSP Audio Processors

A/D Converters (ADC)
- Audio CODECs

D/A Converters (DAC)
- Audio CODECs

Markets and Technologies

Healthcare (2)
- In Vitro Diagnostics
- Life Sciences & Medical Instrumentation

Comparable Parts Click to see all in Parametric Search

Product Lifecycle 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 (2)

EVAL-ADAU1701

ADAU1701 Evaluation Board

EVAL-ADUSB2EBZ

ADUSB2EBZ Evaluation Board

EVAL-ADAU1701

View Detailed Evaluation Kit Information

Small ADAU1701 SigmaDSP evaluation board with self-boot EEPROM and Stereo 2 W Class-D amplifier. USBi is included in the package and it provides the 5 V power supply for the board. This is the recommended board for evaluation of the ADAU1701 and ADAU1702. The EVAL-ADAU1401EBZ can be used if this board lacks some necessary functionality or interface.

Features & Benefits

EVAL-ADAU1701MINIZ

Other ADI Components:
SSM2306
ADM811
ADP3336
Analog In: 1 Stereo TRS (3.5mm)
Analog Out: Stereo Speaker, 1 Stereo TRS (3.5 mm)
Digital I/O: USBi-I2C/SPI
DC Supply: 5 V

Resources

EVAL-ADUSB2EBZ

View Detailed Evaluation Kit Information

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, in the ToolBox or Tree ToolBox window choose the “Communication Channels” category, and select the USBi block.

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 catch 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.

Features & Benefits

EVAL-ADUSB2EBZ "USBi"

Digital I/O: USB input, I2C/SPI output
DC Supply: 5 V (USB)

Documentation

Data Sheets (1)

PDF

1.07 M

ADAU1701: SigmaDSP 28-/56-Bit Audio Processor with Two ADCs and Four DACs Data Sheet (Rev. C)

Application Notes (3)

PDF

439 kB

AN-951: Using Hardware Controls with SigmaDSP GPIO Pins (Rev. A)

PDF

134 kB

AN-923: Designing a System Using the ADAU1701/ADAU1702 in Self-Boot Mode (Rev. 0)

AN-1006: Using the EVAL-ADUSB2EBZ

User Guides (1)

PDF

888 kB

UG-072: Evaluation Board User Guide for ADAU1401

Frequently Asked Questions (1)

Frequently Asked Questions

Software & Systems Requirements

Device Drivers

WIKI

Firmware Loader for SigmaDSPs

WIKI

ADAU1701 Sound Audio System Linux Driver

Software Development Tools

SigmaStudio®

Graphical development tool for programming, development, and tuning software for ADI DSP audio processors and A²B^® transceivers.

Tools & Simulations

Design Tools

SigmaDSP Processors: Software and Tools

Reference Designs (1)

CN0162

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

CN0162

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

CN0162

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

View Detailed Reference Design Information

Features & Benefits

Audio codec with class D amplifier
Capable of stereo audio processing
Configurations for both line output and amplified output

Parts Used

Resources

ADAU1701 Sound Audio System Linux Driver

WIKI

Reference Materials

Circuit Note (1)

CN-0162: Analog Audio Input, Class-D Output with the ADAU1701 SigmaDSP...

Design Resources

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.

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Support & Discussions

ADAU1701 Discussions

RE: Need Help Determining Schematic Size

4 day(s) ago in SigmaDSP Processors and SigmaStudio Development Tool

RE: Programming two ADAU1452 with two USBi, using the same computer

6 day(s) ago in SigmaDSP Processors and SigmaStudio Development Tool

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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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Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.

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.

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