TLV320AIC3268 Ultra Low Power Stereo Audio Codec

TLV320AIC3268 Ultra Low Power Stereo Audio Codec



Product details


ADC channels 2 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) 95 DAC SNR (Typ) (dB) 105 open-in-new Find other Audio CODECs

Package | Pins | Size

VQFN (RGC) 64 81 mm² 9 x 9 open-in-new Find other Audio CODECs


  • 105dB SNR for Stereo Audio DAC to Differential
  • 95dB SNR for Stereo Line Input to Audio ADC
  • 8-192kHz Playback and Record
  • 24 mW output power from DirectPathTM
    Headphone Driver
  • 121 mW output power from Differential Receiver
    Output Driver
  • Class-D Speaker Driver with
    • 1.45 W (8Ω, 5V, 10% THDN)
    • 1.15 W (8Ω, 5V, 1% THDN)
  • Differential or Single-Ended Stereo Line
  • Eight Single-Ended or 4 Fully-Differential Analog
  • Analog Microphone Inputs, and Up to 4 Simultaneous
    Digital Microphone Channels
  • Extensive Signal Processing Options
  • Fully-programmable Enhanced miniDSP
  • Three Independent Digital Audio Serial Interfaces
    with Separate I/O Power Voltages
    • TDM and mono PCM support on all Audio Serial
      Interfaces (ASI)
    • 8-channel Input and Output on ASI 1
  • Programmable PLL, plus Low-Frequency Clocking
  • Programmable 12-Bit SAR ADC
  • SPI and I2C Control Interfaces
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The TLV320AIC3268 (AIC3268) provides users with an integrated method to implement an audio system with multiple digital and analog audio streams as sources, and multiple output devices such as high-powered audio amplifiers. The integrated miniDSP allows users to differentiate their products by enabling customization of signal processing on the audio streams. The low power consumption of this device is ideal for systems that are battery operated or that operate in a constrained power consumption environment.

The AIC3268 is an integrated, low-power, low-voltage stereo audio codec and also features four digital microphone inputs, plus programmable outputs, predefined and parameterizable signal processing blocks and an integrated PLL. Extensive register-based control of power, input and output channel configuration, gains, effects, terminal-multiplexing and clocks are included, allowing the device to be precisely targeted to its application.

The AIC3268 supports a range of applications from mono 8kHz voice to stereo 192kHz music, making it ideal for wide variety of low power battery-operated and consumer audio applications.

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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

document-generic User guide

The TLV320AIC3268EVM-U is a complete evaluation/demonstration kit for the TLV320AIC3268 audio codec. The TLV320AIC3268EVM-U uses TI's PurePath™ Console GUI (PurePathConsole – must be requested separately). PurePath Console is an intuitive, easy-to-use, powerful tool to learn, evaluate, and (...)

  •  Full-featured evaluation board for the TLV320AIC3268 stereo audio codec
  •  USB connection to PC provides power, control, and streaming audio data for easy evaluation
  •  Analog input and output jacks
  •  Connection points for external control and digital audio signals for quick connection to other (...)

Software development

SLAC654A.ZIP (23 KB)

Design tools & simulation

SLAM201.ZIP (190 KB) - IBIS Model

Reference designs

Ultrasonic Distance Measurement using the TLV320AIC3268 miniDSP CODEC Reference Design
TIDA-00403 The TIDA-00403 reference design uses off-the-shelf EVMs for ultrasonic distance measurement solutions using algorithms within the TLV320AIC3268 miniDSP. In conjunction with TI’s PurePath Studio design suite, a robust and user configurable ultrasonic distance measurement system can be designed (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
VQFN (RGC) 64 View options

Ordering & quality

Support & training

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PurePath Studio for portable audio (Part 3 of 3)

This is the final video in a series of three videos developed to help you create custom algorithms for TI’s family of miniDSP audio codecs.

Posted: 10-Oct-2010
Duration: 03:15

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