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  4. ADAU1777


Features and Benefits

  • 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

Product Details

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.


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

Product Lifecycle icon-recommended 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 (1)

Software & Systems Requirements

Software Development Tools

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
ADAU1777BCBZRL Material Declaration Reliability Data 36-Ball WLCSP (3.765mm x 3.195mm)
Wafer Fabrication Data

Support & Discussions

ADAU1777 Discussions

RE: DSP improvements since the adau1761
17 week(s) ago in SigmaDSP Processors & SigmaStudio Dev. Tool
ADAU1467 MFxLMS Filter
20 week(s) ago in Audio

Sample & Buy

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Evaluation Boards

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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.