TLV320ADC3101

ACTIVE

92-dB SNR low-power stereo ADC with digital microphone support and miniDSP

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92-dB SNR low-power stereo ADC with digital microphone support and miniDSP

TLV320ADC3101

ACTIVE

Product details

Parameters

ADC channels 2 Analog inputs 6 Digital audio interface DSP, I2S, L, PCM, R, TDM Control interface I2C Sampling rate (Max) (kHz) 96 ADC SNR (Typ) (dB) 92 Rating Catalog open-in-new Find other Audio ADCs

Package | Pins | Size

VQFN (RGE) 24 16 mm² 4 x 4 open-in-new Find other Audio ADCs

Features

  • Stereo Audio ADC
    • 92-dBA Signal-to-Noise Ratio
    • Supports ADC Sample Rates From 8 kHz to
      96 kHz
  • Instruction-Programmable Embedded miniDSP
  • Flexible Digital Filtering With RAM Programmable
    Coefficient, Instructions, and Built-In Processing
    Blocks
    • Low-Latency IIR Filters for Voice
    • Linear Phase FIR Filters for Audio
    • Additional Programmable IIR Filters for EQ,
      Noise Cancellation or Reduction
    • Up to 128 Programmable ADC Digital Filter
      Coefficients
  • Six Audio Inputs With Configurable Automatic
    Gain Control (AGC)
    • Programmable in Single-Ended or Fully
      Differential Configurations
    • Can Be 3-Stated for Easy Interoperability With
      Other Audio ICs
  • Low Power Consumption and Extensive Modular
    Power Control:
    • 6-mW Mono Record, 8-kHz
    • 11-mW Stereo Record, 8-kHz
    • 10-mW Mono Record, 48-kHz
    • 17-mW Stereo Record, 48-kHz
  • Dual Programmable Microphone Bias
  • Programmable PLL for Clock Generation
  • I2C Control Bus
  • Audio Serial Data Bus Supports I2S, Left/Right-
    Justified, DSP, PCM, and TDM Modes
  • Digital Microphone Input Support
  • Two GPIOs
  • Power Supplies:
    • Analog: 2.6 V to 3.6 V
    • Digital: Core: 1.65 V to 1.95 V,
      I/O: 1.1 V–3.6 V
  • 4-mm × 4-mm 24-Pin RGE (VQFN)
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Description

The TLV320ADC3101 device is a low-power, stereo audio analog-to-digital converter (ADC) supporting sampling rates from 8 kHz to 96 kHz with an integrated programmable-gain amplifier providing up to 40-dB analog gain or AGC. A programmable miniDSP is provided for custom audio processing. Front-end input coarse attenuation of 0 dB, –6 dB, or off, is also provided. The inputs are programmable in a combination of single-ended or fully differential configurations. Extensive register-based power control is available via an I2C interface, enabling mono or stereo recording. Low power consumption makes the TLV320ADC3101 ideal for battery-powered portable equipment.

The AGC programs to a wide range of attack (7 ms to 1.4 s) and decay (50 ms to 22.4 s) times. A programmable noise-gate function is included to avoid noise pumping. Low-latency IIR filters optimized for voice and telephony are available, as well as linear-phase FIR filters optimized for audio. Programmable IIR filters are also available and may be used for sound equalization, or to remove noise components. The audio serial bus can be programmed to support I2S, left-justified, right-justified, DSP, PCM, and TDM modes. The audio bus may be operated in either master or slave mode.

A programmable integrated PLL is included for flexible clock generation and provides support for all standard audio rates from a wide range of available MCLKs, varying from 512 kHz to 50 MHz, including the most popular cases of 12-MHz, 13-MHz, 16-MHz, 19.2-MHz, and 19.68-MHz system clocks.

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Technical documentation

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$59.00
Description

The Bluetooth and MSP430 Audio Source reference design can be used by customers to create a variety of applications for low-end, low-power audio source solutions for applications including toys, projectors, smart remotes and any audio streaming accessories. This reference design is a cost-effective (...)

Features
  • Enables Bluetooth audio (SBC encode/decode) with low cost, low power MSP430F5229
  • Design offloads audio processing from MCU to the Bluetooth device which enables low power audio
  • Cost-effective low end wireless audio solution with a four layer layout and QFN packages
  • Core of the solution is TI's (...)
EVALUATION BOARDS Download
document-generic User guide
$199.00
Description

The TLV320ADC3101EVM is in the Texas Instruments (TI) modular EVM form factor, which allows direct evaluation of the device performance and operating characteristics and eases software development and system prototyping. The TLV320ADC3101EVM-K is a complete evaluation/demonstration kit, which (...)

Features
  • Full-featured evaluation board for the TLV320ADC3101 stereo audio analog-to-digital converter (ADC)
  • USB connection to PC provides power, control, and streaming audio data for easy evaluation
  • Dual onboard microphones and line inputs for ADC evaluation
  • Connection points for external control and digital (...)

Software development

IDES, CONFIGURATION, COMPILERS & DEBUGGERS Download
PurePath™ Studio graphical development environment
AICPUREPATH_STUDIO PurePath™ Studio Graphical Development Environment is a powerful, easy-to-use tool designed specifically to simplify software development for Audio products with a miniDSP/ Audio Processing capability.

The GDE permits these devices to be programmed to support the processing requirements of a wide (...)

Design tools & simulation

SIMULATION MODELS Download
SLAM171.ZIP (144 KB) - IBIS Model
CALCULATION TOOLS Download
Coefficient Calculator For Digital Biquad Filters
COEFFICIENT-CALC COEFFICIENT-CALC (TIBQ) calculates the coefficients for the digital filter biquad transfer function implemented in TI audio codecs. The characteristics of the digital filter are adjusted by selecting a filter type and moving a control point within a window that shows the transfer function gain and (...)

Reference designs

REFERENCE DESIGNS Download
High fidelity, near-field two-way audio reference design with noise reduction and echo cancellation
TIDA-01589 — Man machine interaction requires an acoustic interface for providing full duplex hands-free communication. In hands-free mode, part of the far-end or near-end audio signal from the speaker is coupled to the microphones. Furthermore, in noisy environments the microphones also capture ambient noise in (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Bluetooth and MSP MCU Audio Source Reference Design
BT-MSPAUDSOURCE-RD The Bluetooth and low-power MSP microcontroller Audio Source reference design can be used by customers to create a variety of applications for low-end, low-power audio source solutions for applications including toys, projectors, smart remotes and any audio streaming accessories. This reference (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
VQFN (RGE) 24 View options

Ordering & quality

Support & training

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