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TLV320ADC3120

ACTIVE

Stereo-channel, 768-kHz, Burr-Brown™ audio analog-to-digital converter (ADC) with 106-dB SNR

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Stereo-channel, 768-kHz, Burr-Brown™ audio analog-to-digital converter (ADC) with 106-dB SNR

TLV320ADC3120

ACTIVE

Product details

Parameters

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) 106 Rating Catalog open-in-new Find other Audio ADCs

Package | Pins | Size

WQFN (RTE) 20 open-in-new Find other Audio ADCs

Features

  • 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): 106 dB
    • THD+N: –95 dB
  • ADC channel summing mode, DR performance:
    • 109-dB, 2-channel summing
  • ADC input voltage:
    • Differential, 2-VRMS full-scale inputs
    • Single-ended, 1-VRMS full-scale inputs
  • ADC sample rate (fS) = 8 kHz to 768 kHz
  • Programmable channel settings:
    • Channel gain: 0 dB to 42 dB, 0.5-dB steps
    • Digital volume control: –100 dB to 27 dB
    • Gain calibration with 0.1-dB resolution
    • Phase calibration with 163-ns 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: 3.3 V or 1.8 V
  • I/O-supply operation: 3.3 V or 1.8 V
  • Power consumption for 1.8-V AVDD supply:
    • 9.5 mW/channel at 48-kHz sample rate
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Description

The TLV320ADC3120 is a Burr-Brown™ high-performance, audio analog-to-digital converter (ADC) that supports simultaneous sampling of up to two analog channels or four digital channels for the pulse density modulation (PDM) microphone input. The device supports line and microphone inputs, and allows for both single-ended and differential input configurations. The device 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, low-latency filter modes, and allows for sample rates up to 768 kHz, and allows for sample rates up to 192 kHz. 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, along with the ability to be powered from a single-supply of 3.3 V or 1.8 V, make the device an excellent choice for space-constrained audio systems in far-field microphone recording applications.

The TLV320ADC3120 is specified from –40°C to +125°C, and is offered in a 20-pin WQFN package.

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Similar functionality to the compared device.
PCM1862 ACTIVE 103-dB, 2-channel, software-controlled, audio ADC with universal front end Comparable performance in a larger package
TLV320ADC3140 ACTIVE Quad-channel 768-kHz Burr-Brown™ audio analog-to-digital converter (ADC) with 106-dB SNR 4-channel variant with identical performance

Technical documentation

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Type Title Date
* Data sheet TLV320ADC3120 2-Channel, 768-kHz, Burr-BrownTM Audio ADC datasheet (Rev. A) Jun. 25, 2021
Application note Input Common-Mode Tolerance and High CMRR Modes for TLV320ADCx120 Devices Jul. 07, 2021
User guide ADCx120EVM-PDK, PCMD3140EVM-PDK Evaluation Module User's Guide (Rev. A) Jun. 21, 2021
Application note TLV320ADCx120 Power Consumption Matrix Across Various Usage Scenarios Jun. 11, 2021
Application note Configuring and Operating TLV320ADCx120 as Audio Bus Controller May 28, 2021
Application note TLV320ADCx120 Programmable Biquad Filter Configuration and Application May 28, 2021
Application note TLV320ADCx120 Sampling Rates and Programmable Processing Blocks Supported May 07, 2021

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
document-generic User guide
199
Description

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 conferencing (...)

Features
  • Complete performance demonstration kit (PDK) for TLV320ADC3120
  • High-performance audio ADC: 106-dB dynamic range
  • Onboard microphone provided for voice-recording testing
  • Direct access to digital audio signals and control interface for simple end-system integration
  • USB connection to PC provides power (...)

Software development

SUPPORT SOFTWARE Download
SBAC291.ZIP (80 KB)

Design tools & simulation

SIMULATION MODEL Download
SBAM450.ZIP (67 KB) - IBIS Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
GERBER FILE Download
SBAC279.ZIP (256 KB)

CAD/CAE symbols

Package Pins Download
WQFN (RTE) 20 View options

Ordering & quality

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