Automotive Low-Power 96kHz Mono Audio Codec



Product details


Number of ADC channels 1 DAC channels 1 Digital audio interface L, R, I2S, DSP, TDM Analog inputs 4 Sampling rate (Max) (kHz) 96 Rating Automotive ADC SNR (Typ) (dB) 92 DAC SNR (Typ) (dB) 102 open-in-new Find other Audio CODECs

Package | Pins | Size

VQFN (RHB) 32 25 mm² 5 x 5 VQFNP (RHM) 32 25 mm² 5 x 5 open-in-new Find other Audio CODECs


  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Temperature Grade 2: –40°C to +105°C
    • HBM ESD Classification 2
    • CDM ESD Classification C4B
  • Mono Audio DAC:
    • 102-dBA Signal-to-Noise Ratio
    • Supports Sample Rates From 8 kHz to 96 kHz
    • 3D, Bass, Treble, EQ, or De-Emphasis Effects
  • Mono Audio ADC:
    • 92-dBA Signal-to-Noise Ratio
    • Supports Sample Rates From 8 kHz to 96 kHz
    • Digital Signal Processing and Noise Filtering
  • Four Audio Input Pins:
    • Up to Two Differential Inputs
    • Up to Two Single-Ended Inputs
  • Six Audio Output Drivers:
    • One Fully Differential or Two Single-Ended Headphone Drivers
    • Mono Pair of Fully-Differential Line Outputs
  • Low Power: 14-mW Mono, 48-kHz Playback With 3.3-V Analog Supply
  • Ultra-Low Power Mode With Passive Analog Bypass
  • Front-End Programmable Gain Amplifier (PGA)
  • Programmable Digital Gain for DAC Playback
  • Automatic Gain Control (AGC) for Record
  • Programmable Microphone Bias
  • Programmable PLL for Flexible Clock Generation
  • I2C Control Bus
  • Audio Data Formats: I2S, Left- and Right-Justified, DSP, and TDM
  • Power Supplies:
    • Analog (AVDD, DRVDD): 2.7 V to 3.6 V
    • Digital Core (DVDD): 1.525 V to 1.95 V
    • Digital I/O (IOVDD): 1.1 V to 3.6 V
  • Available in Two VQFN-32 Package Options:
    • Non-Wettable (6PAIC3109TRHBRQ1)
    • Wettable-Flank (6PAIC3109TWRHMRQ1)

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The TLV320AIC3109-Q1 device is a low-power mono audio codec with a mono headphone amplifier and multiple input and output channels that are programmable in single-ended or fully differential configurations. The device includes extensive register-based power control, allowing 48-kHz digital-to-analog converter (DAC) playback at as little as
14-mW consumption, making the device well-suited for low-power applications.

The record path of the TLV320AIC3109-Q1 contains integrated microphone bias, a digitally controlled microphone preamplifier, automatic gain control (AGC), a flexible front-end multiplexer (MUX), and a front-end analog mixer (MIX). During record, programmable filters can remove audible noise. The playback path includes MIX and MUX capability from the mono DAC and selected inputs, through programmable volume controls, to the various outputs.

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Technical documentation

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Type Title Date
* Datasheet TLV320AIC3109-Q1 Automotive, Low-Power, 96-kHz, Mono Audio Codec datasheet (Rev. A) Nov. 16, 2017
Technical articles How to save space and BOM costs by sharing microphones across automotive subsystems Oct. 31, 2019
Application note How to Save Space and BOM Costs by Sharing Microphones Across Automotive Aubsyst Sep. 09, 2019
Application note Audio Serial Interface Configurations for Audio Codecs (Rev. A) Jun. 27, 2019
User guide TLV320AIC3109EVM-K User's Guide Sep. 07, 2017
Application note Common Noise Issues in Audio Codecs Jul. 21, 2017
Application note Using the MSP430 Launchpad as a Standalone I2C Host for Audio Products (Rev. A) Oct. 28, 2013
Application note Audio Serial Interface Configurations for Audio Codecs Sep. 22, 2010
Application note Headset Detection for TLV320AIC33 and TLV320AIC310x Family Jun. 22, 2010
Application note Interfacing an I2S Device to an MSP430 Device (Rev. A) Mar. 22, 2010
Application note Configuring I2S to Generate BCLK from Codec Devices & WCLK from McBSP Port Jul. 08, 2009
Application note TLV320AIC3104 Programming Made Easy Feb. 13, 2009
Application note Using TLV320AIC3x Digital Audio Data Serial Interface w/TDM Support Jul. 05, 2006

Design & development

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Hardware development

document-generic User guide

TLV320AIC3109EVM-K is a complete development kit used to evaluate, control, and configure the TLV320AIC3109-Q1 device. TLV320AIC3109-Q1 is a mono audio codec that features several inputs and outputs, extensive audio routing, mixing, and effect capabilities. 

TLV320AIC3109EVM-K is a combination of two (...)

  • Complete development kit for evaluation of TLV320AIC3109-Q1 mono audio codec
  • Connection points available for line inputs and outputs, external microphone, and mono headphone
  • Onboard microphone for analog-to-digital converter (ADC) evaluation
  • Direct access to digital audio signals and control interface (...)

Design tools & simulation

SLAM329.ZIP (86 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
  • (...)
SLAR163.ZIP (487 KB)

Reference designs

Automotive emergency call (eCall) audio subsystem reference design
TIDA-00724 The efficiency and diagnostics necessary for automotive emergency call (eCall) systems generate unique requirements for the audio subsystem, such as speaker diagnostics, and low power consumption.  This TI Design shows how to use TI's automotive two-channel audio codec (TLV320AIC3104-Q1) and a (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

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

Ordering & quality

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