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TAA3020

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Stereo-channel 768kHz Burr-Brown™ audio analog-to-digital converter (ADC) with 104dB SNR

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Data sheet

TAA3020

ACTIVE
Data sheet Order now

Product details

Number of ADC channels 2 Analog inputs 2 Digital audio interface I2S, L, TDM Control interface I2C Sampling rate (max) (kHz) 768 ADC SNR (typ) (dB) 104 Rating Catalog Analog outputs 0 Operating temperature range (°C) -40 to 105
Number of ADC channels 2 Analog inputs 2 Digital audio interface I2S, L, TDM Control interface I2C Sampling rate (max) (kHz) 768 ADC SNR (typ) (dB) 104 Rating Catalog Analog outputs 0 Operating temperature range (°C) -40 to 105
WQFN (RTE) 20 9 mm² 3 x 3
  • Multichannel high-performance ADC:
    • 2-channel analog microphones or line-in
    • 4-channel digital PDM microphones
    • Up to 2 analog and up to 2 digital microphone channels
  • ADC line and microphone differential input performance:
    • Dynamic range (DR): 104dB
    • THD+N: –95dB
  • ADC channel summing mode, DR performance:
    • 107dB, 2-channel summing
  • ADC input voltage:
    • Differential, 2VRMS full-scale inputs
    • Single-ended, 1VRMS full-scale inputs
  • ADC sample rate (fS) = 8kHz to 768kHz
  • Programmable channel settings:
    • Channel gain: 0dB to 42dB, 0.5dB steps
    • Digital volume control: –100dB to 27dB
    • Gain calibration with 0.1dB resolution
    • Phase calibration with 163ns resolution
  • Programmable microphone bias or supply voltage generation
  • Low-latency signal processing filter selection
  • Programmable HPF and biquad digital filters
  • Automatic gain controller (AGC)
  • Voice activity detection (VAD)
  • I2C control interface
  • Integrated high-performance audio PLL
  • Automatic clock divider setting configurations
  • Audio serial data interface:
    • Format: TDM, I2S, or left-justified (LJ)
    • Word length: 16 bits, 20 bits, 24 bits, or 32 bits
    • Master or slave interface
  • Single-supply operation: 3.3V or 1.8V
  • I/O-supply operation: 3.3V or 1.8V
  • Power consumption for 1.8-AVDD supply:
    • 9.5mW/channel at 48kHz sample rate
  • Multichannel high-performance ADC:
    • 2-channel analog microphones or line-in
    • 4-channel digital PDM microphones
    • Up to 2 analog and up to 2 digital microphone channels
  • ADC line and microphone differential input performance:
    • Dynamic range (DR): 104dB
    • THD+N: –95dB
  • ADC channel summing mode, DR performance:
    • 107dB, 2-channel summing
  • ADC input voltage:
    • Differential, 2VRMS full-scale inputs
    • Single-ended, 1VRMS full-scale inputs
  • ADC sample rate (fS) = 8kHz to 768kHz
  • Programmable channel settings:
    • Channel gain: 0dB to 42dB, 0.5dB steps
    • Digital volume control: –100dB to 27dB
    • Gain calibration with 0.1dB resolution
    • Phase calibration with 163ns resolution
  • Programmable microphone bias or supply voltage generation
  • Low-latency signal processing filter selection
  • Programmable HPF and biquad digital filters
  • Automatic gain controller (AGC)
  • Voice activity detection (VAD)
  • I2C control interface
  • Integrated high-performance audio PLL
  • Automatic clock divider setting configurations
  • Audio serial data interface:
    • Format: TDM, I2S, or left-justified (LJ)
    • Word length: 16 bits, 20 bits, 24 bits, or 32 bits
    • Master or slave interface
  • Single-supply operation: 3.3V or 1.8V
  • I/O-supply operation: 3.3V or 1.8V
  • Power consumption for 1.8-AVDD supply:
    • 9.5mW/channel at 48kHz sample rate

The TAA3020 is a high-performance, audio analog-to-digital converter (ADC) that supports simultaneous sampling of up to two analog channels or four digital channels for a pulse density modulation (PDM) microphone input. The device supports line and microphone inputs and allows single-ended and differential input configurations. The device allows for sample rates up to 768kHz and integrates programmable channel gain, digital volume control, a programmable microphone bias voltage, a phase-locked loop (PLL), a programmable high-pass filter (HPF), biquad filters, and low-latency filter modes. The device supports time-division multiplexing (TDM), I2S, or left-justified (LJ) audio formats, and can be controlled with the I2C interface. These integrated high-performance features and the ability to be powered from a single supply of 1.8V or 3.3V make the device an excellent choice for space-constrained audio systems in far-field microphone recording applications.

The TAA3020 is specified from –40°C to +105°C, and is offered in a 20-pin WQFN package.

The TAA3020 is a high-performance, audio analog-to-digital converter (ADC) that supports simultaneous sampling of up to two analog channels or four digital channels for a pulse density modulation (PDM) microphone input. The device supports line and microphone inputs and allows single-ended and differential input configurations. The device allows for sample rates up to 768kHz and integrates programmable channel gain, digital volume control, a programmable microphone bias voltage, a phase-locked loop (PLL), a programmable high-pass filter (HPF), biquad filters, and low-latency filter modes. The device supports time-division multiplexing (TDM), I2S, or left-justified (LJ) audio formats, and can be controlled with the I2C interface. These integrated high-performance features and the ability to be powered from a single supply of 1.8V or 3.3V make the device an excellent choice for space-constrained audio systems in far-field microphone recording applications.

The TAA3020 is specified from –40°C to +105°C, and is offered in a 20-pin WQFN package.
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Technical documentation

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Type Title Date
* Data sheet TAA3020 2-Channel, 768kHz, 104dB Dynamic Range Audio ADC datasheet PDF | HTML 02 Oct 2024
Certificate TAA3020 EU Declaration of Conformity (DoC) 02 Dec 2024
User guide TAA3020 EVM's User Guide PDF | HTML 22 Oct 2024

Design & development

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Evaluation board

ADC3120EVM-PDK — TLV320ADC3120 evaluation module for stereo-channel, 768-kHz, Burr-Brown™ audio ADC with 106-dB SNR

The ADC3120EVM-PDK is an evaluation module (EVM) that allows the user to test the capabilities of the TLV320ADC3120, which is a two-channel, high-performance, audio analog-to-digital converter (ADC). TLV320ADC3120 is intended for voice-activated systems, professional microphones, audio (...)

User guide: PDF | HTML
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Development kit

TAA3020EVM-PDK — TAA3020 product development kit

The TAA3020 product development kit (PDK) allows the user to test the capabilities of Texas Instruments’ TAA3020, a stereo-channel, high-performance Audio ADC, which is intended for applications in voice-activated systems, professional microphones, audio conferencing, portable computing, (...)

User guide: PDF | HTML
Not available on TI.com
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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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