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Class-D LC Filter Designer
LCFILTER-CALC-TOOL
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Description & Features

Technical documentation

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Description

Calculate and design audio Class-D LC filters in minutes using the Class-D LC Filter Designer.  Select from 4 different filter types based on Class-D output, switching topology and performance.  Input corner frequency and quality (Q) factor to fine tune the audio frequency response.  Finally, verify the selected LC components with multiple speaker loads using the frequency response graph and Q-factor calculations.  The Class-D LC Filter Designer is the perfect quick and easy tool to get started on your next Class-D audio design!

Features
  • Calculate LC filter inductor and capacitor values quickly
  • Select from 4 different Class-D filter types
  • Tune frequency response with corner frequency and quality factor (Q) inputs
  • Verify and graph filter response with multiple speaker loads


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LCFILTER-CALC-TOOL:
Class-D LC Filter Designer

 Free

ACTIVE
Technical documentation
Application notes (1)
Title Type Size (KB) Date
PDF 1559 09 Nov 2016
Design files (2)
Title Type Size (KB) Date
ZIP 167 22 Nov 2016
ZIP 280 23 Sep 2016

Hardware development (7)

Name Part Number Tool Type
TAS5634 300W Stereo/600W Mono HD Digital Input, 58V Class-D Amplifier Power Stage Evaluation Module  TAS5634EVM  Evaluation boards 
TPA3221 100W Stereo/ 200W Mono HD Analog-In Class-D Amplifier Evaluation Module  TPA3221EVM  Evaluation boards 
TPA3244 60W Stereo / 110W Peak Ultra-HD Analog-In Audio Class-D Pad-Down Module  TPA3244EVM  Evaluation boards 
TPA3245 115W Stereo / 230W Mono Ultra-HD Analog-In Audio Class-D Module  TPA3245EVM  Evaluation boards 
TPA3250 70W Stereo / 130W Peak Ultra-HD Analog-In Audio Class-D Pad-Down Module  TPA3250D2EVM  Evaluation boards 
TPA3251 175W Stereo / 350W Mono Ultra-HD, Analog-In Class-D Module  TPA3251EVM  Evaluation boards 
TPA3255 315W Stereo / 600W Mono Ultra-HD Analog-In Audio Class-D Module  TPA3255EVM  Evaluation boards 

TI Devices (8)

Part Number Name Product Family
TAS3251  175-W stereo, 350-W mono, 12- to 38-V supply, digital input Class-D Smart Audio Amplifier  Audio amplifiers 
TAS5634  300-W stereo, 600-W mono, 12- to 62-V supply, PWM input Class-D audio amplifier  Audio amplifiers 
TPA3221  100-W stereo, 200-W mono, 7- to 32-V supply, analog input Class-D audio amplifier w/ low idle  Audio amplifiers 
TPA3244  60-W stereo, 120-W mono, 12- to 31.5-V supply, analog input Class-D audio amplifier, pad-down  Audio amplifiers 
TPA3245  115-W stereo, 230-W mono, 12- to 31.5-V supply, analog input Class-D audio amplifier  Audio amplifiers 
TPA3250  70-W stereo, 140-W mono, 12- to 38-V supply, analog input Class-D audio amplifier, pad-down  Audio amplifiers 
TPA3251  175-W stereo, 350-W mono, 12- to 38-V supply, analog input Class-D Smart Audio Amplifier  Audio amplifiers 
TPA3255  315-W stereo, 600-W mono, 18- to 53.5-V supply, analog input Class-D audio amplifier  Audio amplifiers 

Support & training

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