TPA3220 50W Stereo / 100W Peak HD Analog-In, Pad-Down Class-D Module
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The TPA3220EVM HD-Audio evaluation module demonstrates the TPA3220 pad-down integrated circuit from Texas Instruments. TPA3220 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 a pad-down package which does not require a heatsink and instead dissipates the device heat into the PCB while saving space and material cost. 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 TPA3220EVM 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. TPA3220EVM is a complete reference design for TPA3220, ready for evaluation and excellent listening.

  •  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 4 layer PCB layout
  •  Convenient XLR input connections for differential input

What's Included

  • TPA3220EVM

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TPA3220 50W Stereo / 100W Peak HD Analog-In, Pad-Down Class-D Module


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Technical Documents
User guides (1)
Title Type Size (KB) Date
PDF 1592 29 Aug 2019
More literature (1)
Title Type Size (KB) Date
PDF 38 02 Jan 2019

Software (2)

Name Part Number Software Type
Class-D LC Filter Designer  LCFILTER-CALC-TOOL  Application Software & Frameworks 

Design Kits & Evaluation Modules  ( 1 )

Name Part Number Tool Type
TPA3220 50W Stereo / 100W Peak HD Analog-In, Pad-Down Class-D Micro Module  TPA3220EVM-MICRO  Evaluation Modules & Boards 

TI Devices (4)

Part Number Name Product Family
OPA1632  Fully Differential I/O Audio Amplifier  Operational amplifiers (op amps) 
TLV1117  Single Output LDO, 800mA, Fixed and Adj., Internal Current limit, Thermal Overload Protection  Power management 
TPA3220  50W Stereo / 100W Peak HD Analog-Input Pad-Down Class-D Amplifier  Audio amplifiers 
TPS3802  Small Supply Voltage Supervisors with Manual Reset  Power management 

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