TPA3221EVM

TPA3221 100W Stereo/ 200W Mono HD Analog-In Class-D Amplifier Evaluation Module

TPA3221EVM

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Overview

The TPA3221EVM HD-Audio evaluation module demonstrates the TPA3221 integrated circuit from Texas Instruments. TPA3221 is an ultra-low idle-loss Class-D amp which keeps your system cooler and your battery playing longer while supporting 100kHz high resolution audio and features single-rail power supply support, gain settings, mute, and integrated protection. The device features advanced integrated feedback design which allows very low distortion across the audio band and enables a high audio quality. The device is operated in either HEAD-mode (High-Efficiency-AD) or AD-mode Pulse Width Modulation (PWM) and can drive up to 2 x 100 W into 4-Ω load or 2 x 130 W into 3-Ω load. The TPA3221EVM features adjustable gain settings from 18-34dB, and allows for flexible input signals with a 1-2 VRMS single-ended / differential analog input interface. This EVM supports 2 x BTL (stereo) output channels or 1 x PBTL (mono) output channel configurations. 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

  • TPA3221EVM
  • Quick Start Guide

Speaker amps
TPA3221 100-W stereo, 200-W mono, 7- to 32-V supply, analog input Class-D audio amplifier w/ low idle

 

Linear & low-dropout (LDO) regulators
TLV1117 800-mA, 15-V, linear voltage regulator

 

Supervisor & reset ICs
TPS3802 400-ms delay, small supply voltage supervisors with manual reset

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Evaluation board

TPA3221EVM – TPA3221 100W Stereo/ 200W Mono HD Analog-In Class-D Amplifier Evaluation Module

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GUI for evaluation module (EVM)

TPA3221 & TPA3220 Setup Guide & Configuration Tool – SLAC766.ZIP (442KB)

TI's Standard Terms and Conditions for Evaluation Items apply.

Design files

TPA3221EVM Schematic SLAR148.PDF (429 KB) TPA3221EVM BOM SLAC763.PDF (57 KB) TPA3221EVM PCB SLAR149.PDF (889 KB)

Technical documentation

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Type Title Date
* User guide TPA3221 Evaluation Module User's Guide (Rev. B) Nov. 03, 2017
Certificate TPA3221EVM EU Declaration of Conformity (DoC) Jan. 02, 2019
Application note Multi-Device Configuration for TPA32xx Amplifiers Sep. 27, 2017

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