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  4. ADAU1961


Overview

Features and Benefits

  • 24-bit stereo audio ADC and DAC: >98 dB SNR
  • Sampling rates from 8 kHz to 96 kHz
  • Low power: 17 mW record, 18 mW playback, 48 kHz
  • 6 analog input pins, configurable for single-ended or differential inputs
  • Flexible analog input/output mixers
  • Stereo digital microphone input
  • Analog outputs: 2 differential stereo, 2 single-ended stereo, 1 mono headphone output driver
  • PLL supporting input clocks from 8 MHz to 27 MHz
  • Analog automatic level control (ALC)
  • Microphone bias reference voltage
  • Analog and digital I/O: 3.3 V
  • I2C and SPI control interfaces
  • Digital audio serial data I/O: stereo and time-division multiplexing (TDM) modes
  • Software-controllable clickless mute
  • 32-lead, 5 mm × 5 mm LFCSP
  • −40°C to +105°C operating temperature

Product Details

The ADAU1961 is a low power, stereo audio codec that supports stereo 48 kHz record and playback at 35 mW from a 3.3 V analog supply. The stereo audio ADCs and DACs support sample rates from 8 kHz to 96 kHz as well as a digital volume control.

The record path includes an integrated microphone bias circuit and six inputs. The inputs can be mixed and muxed before the ADC, or they can be configured to bypass the ADC. The ADAU1961 includes a stereo digital microphone input.

The ADAU1961 includes five high power output drivers (two differential and three single-ended), supporting stereo head-phones, an earpiece, or other output transducer. AC-coupled or capless configurations are supported. Individual fine level controls are supported on all analog outputs. The output mixer stage allows for flexible routing of audio.

The serial control bus supports the I2C and SPI protocols. The serial audio bus is programmable for I2S, left-/right-justified, and TDM modes. A programmable PLL supports flexible clock generation for all standard integer rates and fractional master clocks from 8 MHz to 27 MHz

Applications

  • Automotive head units
  • Automotive amplifiers
  • Navigation systems
  • Rear-seat entertainment systems
  • 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.

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    IBIS Models

    ADAU1361/ADAU1761 IBIS Models

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    Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
    ADAU1961WBCPZ Material Declaration Reliability Data 32-Lead LFCSP (5mm x 5mm w/ EP)
    ADAU1961WBCPZ-R7 Material Declaration Reliability Data 32-Lead LFCSP (5mm x 5mm w/ EP)
    ADAU1961WBCPZ-RL Material Declaration Reliability Data 32-Lead LFCSP (5mm x 5mm w/ EP)
    Wafer Fabrication Data

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