High Performance Dual Core DSP/MCU Audio Processor


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TQFP (PAG) 64 144 mm² 12 x 12 open-in-new Find other Digital signal processors (DSPs)


  • Digital Audio Processor
    • Fully Programmable With the Graphical, Drag-and-Drop PurePath Studio™ Software Development Environment
    • 135-MHz Operation
    • 48-Bit Data Path With 76-Bit Accumulator
    • Hardware Single-Cycle Multiplier (28 × 48)
    • Five Simultaneous Operations Per Clock Cycle
    • Usable 768 Words Data RAM (48 Bit), Usable 1k Coefficient RAM (28 Bit)
    • Usable 2.5K Program RAM
    • 122 ms at 48 kHz, 5.8k Words 24-Bit Delay Memory
    • Slave Mode Fs is 44.1 kHz and 48 kHz
    • Master Mode Fs is 48 kHz
  • Analog Audio Input/Output
    • Two 3:1 Stereo Analog Input MUXes
    • Four Differential ADCs (102 dB DNR, Typical)
    • Four Differential DACs (105 dB DNR, Typical)
  • Digital Audio Input/Output
    • Two Synchronous Serial Audio Inputs (Four Channels)
    • Two Synchronous Serial Audio Outputs (Four Channels)
    • Input and Output Data Formats: 16-, 20-, or 24-Bit Data Left, Right, and I2S
  • System Control Processor
    • Embedded 8051 WARP Microprocessor
    • Programmable Using Standard 8051 C Compilers
    • Up to Four Programmable GPIO Pins
  • General Features
    • Two I2C Ports for Slave or Master Download
    • Single 3.3-V Power Supply
    • Integrated Regulators
    • MP3 Player/Music Phone Docks
    • Speaker Bars
    • Mini/Micro-Component Systems
    • Musical Instruments
    • Speaker Equalization
    • Studio Monitors

PurePath Studio Is a trademark of Texas Instruments

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The TAS3204 is a highly-integrated audio system-on-chip (SOC) consisting of a fully-programmable, 48-bit digital audio processor, a 3:1 stereo analog input MUX, four ADCs, four DACs, and other analog functionality. The TAS3204 is programmable with the graphical PurePath Studio™ suite of DSP code development software. PurePath Studio is a highly intuitive, drag-and-drop environment that minimizes software development effort while allowing the end user to utilize the power and flexibility of the TAS3204’s digital audio processing core.

TAS3204 processing capability includes speaker equalization and crossover, volume/bass/treble control, signal mixing/MUXing/splitting, delay compensation, dynamic range compression, and many other basic audio functions. Audio functions such as matrix decoding, stereo widening, surround sound virtualization and psychoacoustic bass boost are also available with either third-party or TI royalty-free algorithms.

The TAS3204 contains a custom-designed, fully-programmable 135-MHz, 48-bit digital audio processor. A 76-bit accumulator ensures that the high precision necessary for quality digital audio is maintained during arithmetic operations.

Four differential 102 dB DNR ADCs and four differential 105 dB DNR DACs ensure that high quality audio is maintained through the whole signal chain as well as increasing robustness against noise sources such as TDMA interference.

The TAS3204 is composed of eight functional blocks:

  1. Clocking System
  2. Digital Audio Interface
  3. Analog Audio Interface
  4. Power supply
  5. Clocks, digital PLL
  6. I2C control interface
  7. 8051 MCUcontroller
  8. Audio DSP – digital audio processing
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No design support from TI available

This product does not have ongoing design support from TI for new projects, such as new content or software updates. If available, you will find relevant collateral, software and tools in the product folder. You can also search for archived information in the TI E2ETM support forums.

Technical documentation

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Type Title Date
* Datasheet TAS3204 Audio DSP With Analog Interface datasheet (Rev. C) Mar. 17, 2011
* Errata TAS3204 Errata Mar. 18, 2010
Technical articles Bringing the next evolution of machine learning to the edge Nov. 27, 2018
Technical articles Industry 4.0 spelled backward makes no sense – and neither does the fact that you haven’t heard of TI’s newest processor yet Oct. 30, 2018
Technical articles How quality assurance on the Processor SDK can improve software scalability Aug. 22, 2018
Technical articles Clove: Low-Power video solutions based on Sitara™ AM57x processors Jul. 21, 2016
Application note TAS3204 Low Power Operation May 21, 2007

Design & development

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