Product details

Number of ADC channels 2 Number of DAC channels (#) 2 Digital audio interface L, R, I2S, DSP Analog inputs 6 Sampling rate (Max) (kHz) 96 Rating Catalog ADC SNR (Typ) (dB) 90 DAC SNR (Typ) (dB) 100
Number of ADC channels 2 Number of DAC channels (#) 2 Digital audio interface L, R, I2S, DSP Analog inputs 6 Sampling rate (Max) (kHz) 96 Rating Catalog ADC SNR (Typ) (dB) 90 DAC SNR (Typ) (dB) 100
VQFN (RHB) 32 25 mm² 5.0 x 5.0
  • Stereo Audio DAC
    • 100 dB A Signal-to-Noise Ratio
    • 16/20/24/32-Bit Data
    • Supports Rates From 8 kHz to 96 kHz
    • 3D/Bass/Treble/EQ/De-Emphasis Effects
  • Stereo Audio ADC
    • 92 dB A Signal-to-Noise Ratio
    • Supports Rates From 8 kHz to 96 kHz
  • Six Audio Input Pins
    • Six Stereo Single-Ended Inputs
  • Six Audio Output Drivers
    • Stereo 8-, 500 mw/Channel Speaker Drive Capability
    • Stereo Fully-Differential or Single-Ended Headphone Drivers
    • Fully Differential Stereo Line Outputs
  • Low Power: 14-mW Stereo, 48-kHz Playback With 3.3-V Analog Supply
  • Programmable Input/Output Analog Gains
  • Automatic Gain Control (AGC) for Record
  • Programmable Microphone Bias Level
  • Programmable PLL for Flexible Clock Generation
  • I2C Control Bus
  • Audio Serial Data Bus Supports I2S, Left/Right-Justified, DSP, and TDM Modes
  • Extensive Modular Power Control
  • Power Supplies:
    • Analog: 2.7 V - 3.6 V
    • Digital Core: 1.65 V - 1.95 V
    • Digital I/O: 1.1 V - 3.6 V
  • Available Packages: 5 × 5 mm, 32-Pin QFN

  • Stereo Audio DAC
    • 100 dB A Signal-to-Noise Ratio
    • 16/20/24/32-Bit Data
    • Supports Rates From 8 kHz to 96 kHz
    • 3D/Bass/Treble/EQ/De-Emphasis Effects
  • Stereo Audio ADC
    • 92 dB A Signal-to-Noise Ratio
    • Supports Rates From 8 kHz to 96 kHz
  • Six Audio Input Pins
    • Six Stereo Single-Ended Inputs
  • Six Audio Output Drivers
    • Stereo 8-, 500 mw/Channel Speaker Drive Capability
    • Stereo Fully-Differential or Single-Ended Headphone Drivers
    • Fully Differential Stereo Line Outputs
  • Low Power: 14-mW Stereo, 48-kHz Playback With 3.3-V Analog Supply
  • Programmable Input/Output Analog Gains
  • Automatic Gain Control (AGC) for Record
  • Programmable Microphone Bias Level
  • Programmable PLL for Flexible Clock Generation
  • I2C Control Bus
  • Audio Serial Data Bus Supports I2S, Left/Right-Justified, DSP, and TDM Modes
  • Extensive Modular Power Control
  • Power Supplies:
    • Analog: 2.7 V - 3.6 V
    • Digital Core: 1.65 V - 1.95 V
    • Digital I/O: 1.1 V - 3.6 V
  • Available Packages: 5 × 5 mm, 32-Pin QFN

The TLV320AIC32 is a low-power stereo-audio codec with a stereo headphone amplifier, as well as multiple inputs and outputs, programmable in single-ended or fully-differential configurations. Extensive register-based power control is included, enabling stereo 48-kHz DAC playback as low as 14 mW from a 3.3-V analog supply, making it ideal for portable, battery-powered audio and telephony applications.

The record path of the TLV320AIC32 contains integrated microphone bias, digitally-controlled stereo-microphone pre-amp, and automatic gain control (AGC), with mix/mux capability among the multiple analog inputs. The playback path includes mix/mux capability from the stereo DAC and selected inputs, through programmable volume controls, to the various outputs.

The TLV320AIC32 contains four high-power output drivers as well as two fully differential output drivers. The high-power output drivers are capable of driving a variety of load configurations, including up to four channels of single-ended 16-Ω headphones using ac-coupling capacitors, or stereo 16-Ω headphones in a cap-less output configuration. In addition, pairs of drivers can be used to drive 8-Ω speakers in a BTL configuration at 500 mW per channel.

The stereo audio DAC supports sampling rates from 8 kHz to 96 kHz and includes programmable digital filtering in the DAC path for 3D, bass, treble, midrange effects, speaker equalization, and de-emphasis for 32 kHz, 44.1 kHz, and 48 kHz rates. The stereo-audio ADC supports sampling rates from 8 kHz to 96 kHz and is preceded by programmable gain amplifiers providing up to +59.5 dB analog gain for low-level microphone inputs.

The serial control bus supports the I2C protocol, while the serial-audio data bus is programmable for I2S, left/right justified, DSP, or TDM modes. A highly programmable PLL is included for flexible clock generation and support for all standard audio rates from a wide range of available MCLKs, varying from 512 kHz to 50 MHz, with special attention paid to the most popular cases of 12 MHz, 13 MHz, 16 MHz, 19.2 MHz, and 19.68 MHz system clocks.

The TLV320AIC32 operates from an analog supply of 2.7 V - 3.6 V, a digital core supply of 1.65 V - 1.95 V, and a digital I/O supply of 1.1 V - 3.6 V. The device is available in a 5 × 5 mm, 32-lead QFN package.

The TLV320AIC32 is a low-power stereo-audio codec with a stereo headphone amplifier, as well as multiple inputs and outputs, programmable in single-ended or fully-differential configurations. Extensive register-based power control is included, enabling stereo 48-kHz DAC playback as low as 14 mW from a 3.3-V analog supply, making it ideal for portable, battery-powered audio and telephony applications.

The record path of the TLV320AIC32 contains integrated microphone bias, digitally-controlled stereo-microphone pre-amp, and automatic gain control (AGC), with mix/mux capability among the multiple analog inputs. The playback path includes mix/mux capability from the stereo DAC and selected inputs, through programmable volume controls, to the various outputs.

The TLV320AIC32 contains four high-power output drivers as well as two fully differential output drivers. The high-power output drivers are capable of driving a variety of load configurations, including up to four channels of single-ended 16-Ω headphones using ac-coupling capacitors, or stereo 16-Ω headphones in a cap-less output configuration. In addition, pairs of drivers can be used to drive 8-Ω speakers in a BTL configuration at 500 mW per channel.

The stereo audio DAC supports sampling rates from 8 kHz to 96 kHz and includes programmable digital filtering in the DAC path for 3D, bass, treble, midrange effects, speaker equalization, and de-emphasis for 32 kHz, 44.1 kHz, and 48 kHz rates. The stereo-audio ADC supports sampling rates from 8 kHz to 96 kHz and is preceded by programmable gain amplifiers providing up to +59.5 dB analog gain for low-level microphone inputs.

The serial control bus supports the I2C protocol, while the serial-audio data bus is programmable for I2S, left/right justified, DSP, or TDM modes. A highly programmable PLL is included for flexible clock generation and support for all standard audio rates from a wide range of available MCLKs, varying from 512 kHz to 50 MHz, with special attention paid to the most popular cases of 12 MHz, 13 MHz, 16 MHz, 19.2 MHz, and 19.68 MHz system clocks.

The TLV320AIC32 operates from an analog supply of 2.7 V - 3.6 V, a digital core supply of 1.65 V - 1.95 V, and a digital I/O supply of 1.1 V - 3.6 V. The device is available in a 5 × 5 mm, 32-lead QFN package.

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Technical documentation

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Type Title Date
* Data sheet Low Power Stereo Audio Codec for Portable Audio/Telephony datasheet (Rev. C) 12 Nov 2008
Application note Out-of-Band Noise Measurement Issues for Audio Devices (Rev. A) 31 Dec 2019
Application note Audio Serial Interface Configurations for Audio Codecs (Rev. A) 27 Jun 2019
Application note Using the MSP430 Launchpad as a Standalone I2C Host for Audio Products (Rev. A) 28 Oct 2013
Application note Audio Serial Interface Configurations for Audio Codecs 22 Sep 2010
Application note Interfacing an I2S Device to an MSP430 Device (Rev. A) 22 Mar 2010
Application note Solving Enumeration Errors in USB Audio DAC and CODEC Designs 30 Oct 2009
Application note Configuring I2S to Generate BCLK from Codec Devices & WCLK from McBSP Port 08 Jul 2009
Application note TLV320AIC32 WinCE 5.0 Driver 17 Mar 2007
Application note Using TLV320AIC3x Digital Audio Data Serial Interface w/TDM Support 05 Jul 2006
User guide TLV320AIC32EVM - User Guide 02 Nov 2005
Application note TLV320AIC3x WinCE 5.0 Drivers 27 Sep 2005
Application note The Built-In AGC Function in TSC2100/2101 & TLV320AIC26/28/32/33 Devices 13 Sep 2005
Application note How to Set the TSC/AIC EVM to Record & Playback Audio or Other Sound Through PC 14 Dec 2004

Design & development

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

Driver or library

TLV320AIC3XSW-LINUX — Linux Driver for TLV320AIC3X

The Linux driver supports the TLV320AIC3x family of low-power stereo CODECs, and communication through the I2C bus and interfaces with the Linux Dynamic Audio Power Management for Portable Devices (DAPM) class.
Linux main line status

Available in Linux main line: Yes
Available through git.ti.com: N/A

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Simulation model

TLV320AIC32 IBIS Model

SLAM114.ZIP (86 KB) - IBIS Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
Calculation tool

COEFFICIENT-CALC — Coefficient Calculator For Digital Biquad Filters

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 (...)
Package Pins Download
VQFN (RHB) 32 View options

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