ADAU1772

4 ADC, 2 DAC Low-Power Codec with Audio Processor

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Overview

Features and Benefits
Product Details

Features and Benefits

Programmable audio processing engine 192 kHz processing path
Biquad filters, limiters, volume controls, mixing
Low latency, 24-bit ADCs and DACs
102 dB SNR (signal through PGA and ADC with A-weighted filter)
107 dB combined SNR (signal through DAC and headphone with A-weighted filter)
Serial port sample rates from 8 kHz to 192 kHz
38 μs analog-to-analog latency

Four single-ended analog inputs—configurable as microphone or line inputs
Stereo analog audio output—single-ended or differential, configurable as either line output or headphone driver
PLL supporting any input clock rate from 8 MHz to 27 MHz
Full-duplex, asynchronous sample rate converters (ASRCs)
See data sheet for additional features

Product Details

The ADAU1772 is a codec with four inputs and two outputs that incorporates a digital processing engine to perform filtering, level control, signal level monitoring, and mixing. The path from the analog input to the DSP core to the analog output is optimized for low latency and is ideal for noise cancelling headsets. With the addition of just a few passive components, a crystal, and an EEPROM for booting, the ADAU1772 provides a complete headset solution.

APPLICATIONS

Noise cancelling headsets, headsets, and headphones
BlueTooth ANC headsets, headsets, and headphones
Personal navigation devices
Digital still and video cameras

Product Categories

Audio Products
- Audio CODECs

Markets and Technologies

Healthcare (3)

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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-ADAU1772

ADAU1772 Evaluation Board

EVAL-ADUSB2EBZ

ADUSB2EBZ Evaluation Board

EVAL-ADAU1772

View Detailed Evaluation Kit Information

This evaluation board provides full access to all analog and digital I/Os on the ADAU1772. The ADAU1772 core is controlled by Analog Devices, Inc., SigmaStudio™ software, which interfaces to the board via a USB connection. This evaluation board can be powered by a single AAA battery, by the USB bus, or by a single 3.8 V to 6 V supply; any of these are regulated to the voltages required on the board. The PC board 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 microphones and speakers. The master clock can be provided externally or by the on-board 12.288 MHz passive crystal.

Resources

UG-477: Evaluating the ADAU1772 Four ADC, Two DAC Low Power Codec with Audio Processor

PDF

1440 kB

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 & Resources

Data Sheets

ADAU1772: Four ADC, Two DAC Low Power Codec with Audio Processor Data Sheet (Rev. C)
7/18/2012

PDF

6163 kB

User Guides

UG-477: Evaluating the ADAU1772 Four ADC, Two DAC Low Power Codec with Audio Processor
11/26/2012

PDF

1440 kB

Software & Systems Requirements

Software Development Tools

SigmaStudio®

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

Tools & Simulations

IBIS Models

IBS

ADAU1772 IBIS Model

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.View our quality and reliability program and certifications for more information.

Part Number	Material Declaration	Reliability Data	Pin/Package Drawing	CAD Symbols, Footprints & 3D Models
ADAU1772BCPZ	Material Declaration	Reliability Data	40-Lead LFCSP (6mm x 6mm w/ EP)	Ultra Librarian SamacSys
ADAU1772BCPZ-R7	Material Declaration	Reliability Data	40-Lead LFCSP (6mm x 6mm w/ EP)	Ultra Librarian SamacSys
ADAU1772BCPZ-RL	Material Declaration	Reliability Data	40-Lead LFCSP (6mm x 6mm w/ EP)	Ultra Librarian SamacSys
Wafer Fabrication Data

PCN-PDN Information

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Support & Discussions

ADAU1772 Discussions

ADAU1772 How to use analog input reference pins (AINxREF)

5 week(s) ago in SigmaDSP Processors & SigmaStudio Dev. Tool

ADAU1772 REGOUT and DVDD

10 week(s) ago in SigmaDSP Processors & SigmaStudio Dev. Tool

RE: Testing ADAU1772 Serial I/O using APx555

11 week(s) ago in SigmaDSP Processors & SigmaStudio Dev. Tool

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(*)The 1Ku 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. 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.

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.