Wireless Subwoofer Amplifier Reference Design


Design files


This wireless subwoofer amplifier reference design demonstrates the ease of integrating wireless connectivity to a traditional analog input subwoofer design.The wired or wireless mode is controlled by an MSP430. The reference design includes a high performance stereo digital audio amplifier system with software for monitoring and control. The design features the CC8520 PurePath Audio Wireless RF SoC module for audio streaming in wireless mode. Schematics, bill of materials and design considerations for the boards and EVMs used in the reference design are provided.

  • Easy integration of wireless connectivity to analog subwoofer design
  • High performance stereo digital input amplifier system
  • Volume, bass, mute control
  • Selectable bass frequency
  • Wireless Subwoofer system comprising Analog & Wireless Control board, Audio RF SoC module board digital input Class D audio amplier board (EVM), software
  • The design is tested and includes a Quick Start Guide
  • Personal electronics

    A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

    Design files & products

    Design files

    Download ready-to-use system files to speed your design process.

    TIDU358.PDF (191 K)

    Test results for the reference design, including efficiency graphs, test prerequisites and more

    TIDRAF4.PDF (194 K)

    Detailed schematic diagram for design layout and components

    TIDR655.PDF (241 K)

    Detailed schematic diagram for design layout and components

    TIDR656.PDF (114 K)

    Detailed schematic diagram for design layout and components

    TIDR657.PDF (112 K)

    Complete listing of design components, reference designators, and manufacturers/part numbers

    TIDR658.PDF (36 K)

    Complete listing of design components, reference designators, and manufacturers/part numbers

    TIDC446.ZIP (706 K)

    Design file that contains information on physical board layer of design PCB


    Includes TI products in the design and potential alternatives.

    Audio ADCs

    PCM180824-bit, 99-dB SNR, 96-kHz stereo ADC with single-ended inputs

    Data sheet: PDF | HTML
    Analog switches & muxes

    TS5A231575-V, 2:1 (SPDT), 2-channel analog switch

    Data sheet: PDF | HTML
    MSP430 microcontrollers

    MSP430F213216 MHz MCU with 8KB Flash, 512B SRAM, 10-bit ADC, comparator, I2C/SPI/UART

    Data sheet: PDF
    Other wireless technologies

    CC8520PurePath™ Wireless 2.4 GHz for wireless digital audio streaming supporting up to 2 channels

    Data sheet: PDF
    PWM modulators

    TAS55588-Channel HD compatible audio processor with SRC & PWM output

    Data sheet: PDF | HTML
    Protocol-specific switches & muxes

    TS3V3303.3-V, 2:1 (SPDT), 4-channel video switch

    Data sheet: PDF
    Speaker amps

    TAS5624A150-W stereo, 400-W mono, 12- to 38-V, PWM input Class-D audio amplifier w/ thermal enhancement

    Data sheet: PDF | HTML

    Technical documentation

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    View all 3
    Type Title Date
    More literature High-Power Audio Amplifiers TPA322x/4x/5x Dec. 01, 2017
    Test report TIDA-00232 Test Results May 19, 2014
    User guide TIDA-00232 Quick Start Guide May 19, 2014

    Related design resources

    Software development

    PUREPATH-WL-CFG PurePath™ Wireless configurator
    CCSTUDIO Code Composer Studio™ integrated development environment (IDE)

    Support & training

    TI E2E™ forums with technical support from TI engineers

    View all forum topics

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