Low-Power Stereo CODEC With Integrated Class-D Speakers, Earpiece Driver, DirectPath™



Product details


Number of ADC channels 2 Number of DAC channels (#) 2 Digital audio interface I2S, TDM, DSP, L&R, PCM Analog inputs 8 Sampling rate (Max) (kHz) 192 Rating Catalog ADC SNR (Typ) (dB) 93 DAC SNR (Typ) (dB) 100 open-in-new Find other Audio CODECs

Package | Pins | Size

DSBGA (YZF) 81 25 mm² 4.85 x 4.85 open-in-new Find other Audio CODECs


  • Stereo Audio DAC With 101=dB SNR
  • 2.7-mW Stereo 48-kHz DAC Playback
  • Stereo Audio ADC With 93-dB SNR
  • 5.6-mW Stereo 48-kHz ADC Record
  • 8 kHz to 192 kHz Playback and Record
  • 30-mW DirectPath™ Headphone Driver
    Eliminates Large Output DC-Blocking Capacitors
  • 128-mW Differential Receiver Output Driver
  • Stereo Class-D Speaker Drivers
    • 1.7 W (8 Ω, 5.5 V, 10% THDN)
    • 1.4 W (8 Ω, 5.5 V, 1% THDN)
  • Stereo Line Outputs
  • PowerTune™ - Adjusts Power vs SNR
  • Extensive Signal Processing Options
  • Eight Single-Ended or 4 Fully-Differential Analog
  • Stereo Digital and Analog Microphone Inputs
  • Low Power Analog Bypass Mode
  • Programmable PLL, Plus Low-Frequency Clocking
  • Programmable 12-Bit SAR ADC
  • SPI and I2C Control Interfaces
  • Three Independent Digital Audio Serial Interfaces
  • 4.81 mm × 4.81 mm × 0.625 mm 81-Ball WCSP
    (YZF) Package
open-in-new Find other Audio CODECs


The TLV320AIC3212 (also referred to as the AIC3212) device is a flexible, highly-integrated, low-power, low-voltage stereo audio codec. The AIC3212 features digital microphone inputs and programmable outputs, PowerTune capabilities, selectable audio-processing blocks, predefined and parameterizable signal processing blocks, integrated PLL, and flexible audio interfaces. Extensive register-based control of power, input and output channel configuration, gains, effects, pin-multiplexing and clocks are included, allowing the device to be precisely targeted to its application.

Combined with the advanced PowerTune technology, the device can execute operations from 8-kHz mono voice playback to stereo 192-kHz DAC playback, making it ideal for portable battery-powered audio and telephony applications.

The record path of the TLV320AIC3212 covers operations from 8-kHz mono to 192-kHz stereo recording, and contains programmable input channel configurations which cover single-ended and differential setups, as well as floating or mixing input signals. It also provides a digitally-controlled stereo microphone preamplifier and integrated microphone bias. One application of the digital signal processing blocks is removable of audible noise that may be introduced by mechanical coupling, for example, optical zooming in a digital camera. The record path can also be configured as a stereo digital microphone Pulse Density Modulation (PDM) interface typically used at 64 Fs or 128 Fs.

The playback path offers signal processing blocks for filtering and effects; headphone, line, receiver, and Class-D speaker outputs; flexible mixing of DAC; and analog input signals as well as programmable volume controls. The playback path contains two high-power DirectPath headphone output drivers which eliminate the need for ac coupling capacitors. A built in charge pump generates the negative supply for the ground centered headphone drivers. These headphone output drivers can be configured in multiple ways, including stereo, and mono BTL. In addition, playback audio can be routed to integrated stereo Class-D speaker drivers or a differential receiver amplifier.

The integrated PowerTune technology allows the device to be tuned to just the right power-performance trade-off. Mobile applications frequently have multiple use cases requiring very low-power operation while being used in a mobile environment. When used in a docked environment power consumption typically is less of a concern while lowest possible noise is important. With PowerTune the TLV320AIC3212 can address both cases.

The required internal clock of the TLV320AIC3212 can be derived from multiple sources, including the MCLK1 pin, the MCLK2 pin, the BCLK1 pin, the BCLK2 pin, several general purpose I/O pins or the output of the internal PLL, where the input to the PLL again can be derived from similar pins. Although using the internal fractional PLL ensures the availability of a suitable clock signal, TI does not recommend this for the lowest power settings. The PLL is highly programmable and can accept available input clocks in the range of 512 kHz to 50 MHz. To enable even lower clock frequencies, an integrated low-frequency clock multiplier can also be used as an input to the PLL.

The TLV320AIC3212 has a 12-bit SAR ADC converter that supports system voltage measurements. These system voltage measurements can be sourced from three dedicated analog inputs (IN1L/AUX1, IN1R/AUX2, or VBAT pins), or, alternatively, an on-chip temperature sensor that can be read by the SAR ADC.

The TLV320AIC3212 also features three full Digital Audio Serial Interfaces, each supporting I2S, DSP/TDM, RJF, LJF, and mono PCM formats. This enables the digital playback (DAC) and record (ADC) paths to select from three independent digital audio buses or chips.

The device is available in the 4.81 mm × 4.81 mm × 0.625 mm 81-Ball WCSP (YZF) package.

open-in-new Find other Audio CODECs

Technical documentation

Design & development

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

Hardware development

TLV320AIC3212 Evaluation Module
document-generic User guide

The TLV320AIC3212EVM-U is a complete evaluation module for the TLV320AIC3212 Audio Codec, which is a Low Power Stereo Codec, Integrated Class-D Speakers, Earpiece Driver and DirectPath™ Stereo Headphone Outputs. With three audio serial interfaces, the AIC3212 also allows for multiple connections (...)

  • Full-featured evaluation board for TLV320AIC3212 stereo audio codec
  • USB connection to PC provides power, control, and streaming audio data for easy evaluation
  • Various types of input and output connectors provide easy access to all input and output digital signals
  • On-board SRC4392 provides audio (...)
  • Software development

    TLV320AIC32XX CODEC family Linux driver support
    TLV320AIC32XX-DRIVERS — These Linux drivers support our low-power audio CODECs in the TLV320AIC32xx device family, and include both .c and .h files. The "Go to third party" buttons below will allow you to downlod the appropriate drivers from

    Linux main line status

    Available in Linux main line: Yes
    Available (...)

    SLAC523.ZIP (2747 KB)
    SLAC597.ZIP (25 KB)

    Design tools & simulation

    SLAM151.ZIP (190 KB) - IBIS Model
    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 (...)
    • 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
    • (...)

    CAD/CAE symbols

    Package Pins Download
    DSBGA (YZF) 81 View options

    Ordering & quality

    Information included:
    • RoHS
    • REACH
    • Device marking
    • Lead finish/Ball material
    • MSL rating/Peak reflow
    • MTBF/FIT estimates
    • Material content
    • Qualification summary
    • Ongoing reliability monitoring

    Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

    Support & training

    TI E2E™ forums with technical support from TI engineers

    Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

    If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​