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


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The TPA3116D2 evaluation module showcases TI’s 50-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 100-W, Class-D mono audio amplifier in PBTL mode.

System designers can quickly evaluate TPA3116D2’s sound quality and verify system specifications with the TPA3116D2EVM evaluation module. The TPA3116D2EVM User's Guide contains the schematic, layout and bill of materials for a reference design.

  • 2x50W into 4Ω at 24V with <1% THD+N in Stereo BTL mode
  • 1x100W into 3Ω at 24V with 10% THD+N in Mono PBTL mode
  • 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
TPA3116D2 50-W stereo, 100-W mono, 4.5- to 26-V supply, analog input Class-D audio amplifier w/ SpeakerGuard™ TPA3116D2-Q1 Automotive, 50-W, 2-ch, 4.5- to 26-V supply analog input Class-D audio amplifier TPA3118D2-Q1 Automotive, 30-W, 2-ch, 4.5- to 26-V supply analog input Class-D audio amplifier

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Evaluation board

TPA3116D2EVM — TPA3116D2 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) Aug. 26, 2019
Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) Jun. 27, 2019
Certificate TPA3116D2EVM EU Declaration of Conformity (DoC) Jan. 02, 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 Dec. 07, 2017
Technical article What are the building blocks of Bluetooth speakers? Feb. 21, 2017
EVM User's guide TPA3116D2 EVM User's Guide (Rev. B) Dec. 20, 2013
Application note AN-1737 Managing EMI in Class D Audio Applications (Rev. A) May 01, 2013

Related design resources

Hardware development

TPA3118D2EVM 30-W Stereo Analog Input Class-D Audio Amplifier Evaluation Module TPA3128D2EVM TPA3128D2 2×30-W Class-D Amplifier With Low Idle Power Dissipation Evaluation Module

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