30-W Stereo Analog Input Class-D Audio Amplifier Evaluation Module


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The TPA3118D2 evaluation module showcases TI’s 30-W Stereo Analog Input Class-D Audio Amplifier with a small number of external components mounted on a circuit board that can be used to directly drive a speaker with an external analog audio source as the input; the evaluation module can also be configured as a 60-W, Class-D mono audio amplifier in PBTL mode. TPA3118D2 requires no external heatsink as its pad-down package allows a PCB plane to be used as heatsink.

System designers can quickly evaluate TPA3118D2’s sound quality and verify system specifications with the TPA3118D2EVM evaluation module. The TPA3118D2EVM User's Guide contains the schematic, layout and bill of materials for a reference design.

  • 2x30W into 8Ω at 24V with <1% THD+N in Stereo BTL mode
  • 1x60W into 3Ω at 24V with <1% THD+N in Mono PBTL mode
  • No external heatsink needed: Pad-Down HTSSOP package allows PCB plane to act as heatsink
  • Wide supply voltage range: 4.5V to 26V
  • Wide Switching Rates 400 kHz – 1.2 MHz
  • Four Selectable, Fixed Gain Settings
  • Integrated Self-Protection Circuits Including Overvoltage, Undervoltage, Overtemperature, DCDetect and Short Circuit with Error Reporting
Speaker amps
TPA3118D2 30-W stereo, 60-W mono, 4.5- to 26-V supply, analog input Class-D audio amplifier
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Evaluation board

TPA3118D2EVM — TPA3118D2 Evaluation Module

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Design files

Technical documentation

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Type Title Date
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 26 Aug 2019
Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 27 Jun 2019
Certificate TPA3118D2EVM EU Declaration of Conformity (DoC) 02 Jan 2019
Data sheet TPA3116D2 15-W, 30-W, 50-W Filter-Free Class-D Stereo Amplifier Family With AM Avoidance datasheet (Rev. G) PDF | HTML 07 Dec 2017
Technical article What are the building blocks of Bluetooth speakers? 21 Feb 2017
Application note AN-1737 Managing EMI in Class D Audio Applications (Rev. A) 01 May 2013
User guide 2x30W Class D Stereo Amplifier with AM Avoidance (Rev. A) 19 Dec 2012

Related design resources

Hardware development

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