Stereo audio DAC with stereo 500-mW speaker amp, stereo 18-mW headphone driver & audio processing


Product details


Audio input type Analog Input, Digital Input Architecture Class-D Speaker channels (Max) Stereo Power stage supply (Max) (V) 3.6 Power stage supply (Min) (V) 3.6 Load (Min) (ohms) 8 Output power (W) 2.7 THD + N @ 1 kHz (%) 0.028 Iq (Typ) (mA) 4 Control interface I2C Closed/open loop Closed Analog supply (Min) (V) 2.7 Analog supply (Max) (V) 3.6 Sampling rate (Max) (kHz) 96 PSRR (dB) 52 Operating temperature range (C) -40 to 85 open-in-new Find other Speaker amps

Package | Pins | Size

VQFN (RHB) 32 25 mm² 5 x 5 VQFN (RHB) 32 25 mm² 5.0 x 5.0 open-in-new Find other Speaker amps


  • Stereo Audio DAC
    • 95-dBA 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
  • Two Audio Input Pins
    • Allows Analog Bypass Path
  • Four Audio Output Drivers
    • Stereo 8-, 500-mW/Channel Speaker Drive Capability
    • Stereo Fully Differential or Single-Ended Headphone Drivers
  • Low Power: 18-mW Stereo 48-kHz Playback With 3.3-V Analog Supply
  • Programmable Input/Output Analog Gains
  • Programmable Microphone Bias Level
  • Headphone Jack Detection
  • 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
  • Internal Selectable LDO Allows Operation From Single 3.3-V Supply
  • Power Supplies:
    • Analog: 2.7 V-3.6 V.
    • Digital Core: 1.525 V-1.95 V
    • Digital I/O: 1.1 V-3.6 V
  • Package: 5 × 5 mm 32-QFN

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The TLV320DAC32 is a low power stereo audio DAC with and integrated power amplifier designed to drive stereo headphones or speakers. This device also has a pair of analog inputs which allow routing of external signals to the output amplifiers. The playback path includes a mix/mux capability from the stereo DAC and analog inputs, through programmable volume controls, to the headphone outputs. Extensive register-based power control is included, enabling stereo 96-kHz playback as low as 20mW from a 3.3-V analog supply, making it ideal for portable battery-powered audio and telephony applications.

The TLV320DAC32 contains four high-power output drivers. These 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 configuraton. 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 serial control bus uses 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 TLV320DAC32 operates from analog supplies of 2.7 V - 3.6 V, a digital core supply of 1.525 V - 1.95 V, and a digital I/O supply of 1.1 V - 3.6 V. An internal LDO regulator allows the device to internally generate the lower voltage power supply needed for digital core logic, thereby allowing full operation from a single 3.3-V supply voltage.

The TLV320DAC32 is a software-compatible subset of the existing TLV320AIC32 and TLV320AIC33 audio codecs, allowing simple transition from a system with record and playback to a system with playback only.

The device is available in a 5 x 5mm 32-lead QFN package.

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Technical documentation

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Type Title Date
* Data sheet Low Power Stereo Audio DAC for Portable Audio/Telephony datasheet (Rev. B) Nov. 13, 2008
* Errata TLV320DAC32 Errata Oct. 18, 2006
Application note Out-of-Band Noise Measurement Issues for Audio Devices (Rev. A) Dec. 31, 2019
Application note Interfacing an I2S Device to an MSP430 Device (Rev. A) Mar. 22, 2010

Design & development

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Hardware development

document-generic User guide

The TLV320DAC32EVM is an EVM manufactured in Texas Instruments modular EVM form factor. The modular form factor allows direct evaluation of the TLV320AIC32 mono-input/stereo-output audio codec. Audio data is communicated to the board using I²S bus. The modular EVM is also compatible with the (...)

  • Full featured evaluation board to evaluate/test the TLV320AIC32 device
  • Build using TI's modular design to allow use of 5-6K DSP Interface Board
  • Communicates with the host processor through a standard SPI serial Interface
  • Includes an on-chip temperature sensor capable of 10°C resolution
  • Battery (...)
document-generic User guide

The TLV320DAC32EVM-PDK is a complete evaluation/demonstration kit for the test and evaluation of theTLV320DAC32EVM. The kit, which includes the TLV320DAC32EVM and a USB-based motherboard, can obtain power from the PCs USB port. Also included with the TLV320DAC32M-PDK is the evaluation software for (...)

  • A complete evaluation/demonstration kit for the TLV320DAC32EVM
  • The TLV320DAC32EVM-PDK can obtain power from terminals or the USB port
  • Power can be supplied with a 6VDC-10VAC/DC external wall supply (NOT INCLUDED)
  • LEDs on the USB-MOD Circuit Board indicates system power
  • Filtered audio outputs can be (...)

Software development

TLV320DAC32EVM Software

Design tools & simulation

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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
VQFN (RHB) 32 View options

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