ADAU1777

PRODUCTION

Four-ADC, Two-DAC, Low Power Codec with Audio Processor

Data Sheet (Rev. 0) Product Selection Table

Part Models: 1
1ku List Price: Starting From $7.76

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Overview

Programmable audio processing engine
- Fast (up to 768 kHz) and slow processing paths
- Biquad filters, limiters, volume controls, and mixing
Low latency, 24-bit ADCs and DACs
- 102 dB SNR (through PGA and ADC with A weighted filter)
- 108 dB combined SNR (through DAC and headphone with A weighted filter)
Serial port sampling rate from 8 kHz to 192 kHz
5 μs analog-to-analog latency
4 single-ended analog inputs, configurable as microphone or line inputs
Dual stereo digital microphone 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)
Power supplies
- Analog and digital input/output of 1.8 V to 3.3 V
- Digital signal processing (DSP) core of 1.1 V to 1.8 V
Low power
I²C and SPI control interfaces, self boot from I2C EEPROM
7 multipurpose (MPx) pins for digital controls and outputs

The ADAU1777 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 canceling headsets. With the addition of just a few passive components, a crystal, and an EEPROM for booting, the ADAU1777 provides a complete headset solution.

Note that throughout this data sheet, multifunction pins, such as SCL/SCLK, are referred to either by the entire pin name or by a single function of the pin, for example, SCLK, when only that function is relevant.

Applications

Noise canceling handsets, headsets, and headphones
Bluetooth^® active noise cancelling (ANC) handsets, headsets, and headphones
Personal navigation devices
Digital still and video cameras

Part Models: 1
1ku List Price: Starting From $7.76

Documentation

Data Sheet 1

ADAU1777: Four-ADC, Two-DAC, Low Power Codec with Audio Processor Data Sheet (Rev.0) 12/22/2016

User Guide 1

UG-1055: Evaluating the ADAU1777 Four ADC, Two DAC, Low Power Codec with Audio Processor (Rev.0) 12/22/2016

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 Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
ADAU1777BCBZRL	36-Ball WLCSP (3.765mm x 3.195mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Software Resources

SigmaStudio®

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

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Evaluation Kits

ADAU1777 Evaluation Board

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Product Details

This evaluation board provides full access to all analog and digital inputs/outputs on the ADAU1777. The ADAU1777 core is controlled by Analog Devices, Inc., SigmaStudio™ software, which interfaces to the board via a USB connection. The This evaluation board provides full access to all analog and digital inputs/outputs on the ADAU1777. The ADAU1777 core is controlled by Analog Devices, Inc., SigmaStudio™ software, which interfaces to the board via a USB connection. The EVALADAU1777Z can be powered by a single AAA battery, by the USB bus, or by a single 3.8 V to 5.5 V supply; any of these supplies are 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 microphones and speakers. The master clock can be provided externally or by the on-board 12.288 MHz passive crystal.