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Texas Instruments TPA3221EVM HD-Audio Evaluation Module (EVM)

Texas Instruments TPA3221EVM HD-Audio Evaluation Module (EVM) demonstrates the TPA3221 integrated circuit. The TPA3221 is an ultra-low idle-loss Class-D amplifier that keeps your system cooler and battery playing longer while supporting 100kHz high-resolution audio. The TPA3221 features single-rail power supply support, gain settings, mute, and integrated protection. The device also features an advanced integrated feedback design which allows very low distortion across the audio band and enables high audio quality. The TPA3221EVM evaluation module features adjustable gain settings ranging from 18db to 34dB and allows for flexible input signals with a 1-2 VRMS single-ended / differential analog input interface. This evaluation module supports 2xBTL (stereo) output channels or 1xPBTL (mono) output channel configurations. Texas Instruments TPA3221EVM is a complete reference design for TPA3221, ready for evaluation and excellent listening.

Features

  • Stereo HD Audio evaluation module
  • Integrated protection system (short circuit, clip, and thermal)
  • Device-integrated support for Single-Ended (SE) and differential analog input signals
  • BTL and PBTL output configurations supported
  • Double-sided, plated-through, 2oz. Cu 2 layer PCB layout
  • Convenient XLR input connections for differential input

Required Equipment

  • TPA3221EVM evaluation module
  • Power supply 5–14A, 12–30VDC
  • Two 2–8Ω speaker or resistor loads (ensure speaker/load is appropriately sized for required wattage output)
  • Four speakers, banana cables
  • Four XLR or two RCA input cables
  • Analog output audio source

Board Layout

Mechanical Drawing - Texas Instruments TPA3221EVM HD-Audio Evaluation Module (EVM)
Inilathala: 2018-01-15 | Na-update: 2022-10-18