Audio Projects
Audio VU/Sound Level Meter with LM339
This is an “Audio VU Meter” or “Sound Level Meter”, it is a general-purpose bar-graph Audio VU meter designed for fun projects.
50W Stereo Audio Power Amplifier based on TPA3116D2
I designed an audio power amplifier board based around the TPA3116D2.
Phantom Powered Microphone Pre-Amplifier using SSM2019
The project published here is based on SSM2019 IC which is a latest-generation Pro audio preamplifier.
Stereo volume and balance control with Rotary Encoder using MAX5440
The project described here is a compact stereo volume and balance control with rotary encoder.
USB Powered Audio Amplifier using MAX4298
USB powered mini speaker amplifier is conveniently powered by USB and it is simple to set up.
Mini Speaker Attached Audio Amplifier using TS4871
This Mini Audio Power Amplifier is capable of delivering 1W of continuous RMS Output Power into 8 ohms load @ 5V.
Differential Microphone Pre-Amplifier
The project shown here is a microphone preamplifier that provides high quality amplification, optimized for use in computers, media and mobile applications.
Low Cost/Voltage 3W Class-D Stereo Audio Amplifier for Portable Gadgets
This low cost low voltage 3W class-D stereo amplifier is based on PAM8403 IC, The PAM8403 is a 3W, class-D audio amplifier.
Hi-Fi Stereo Headphone Amplifier using LME49600
This project is the ideal solution for high output, high performance high fidelity stereo head phone amplifier.
Universal OpAmp Evaluation Board Using LMV321
The Universal Op-Amp Development board is a general purpose blank circuit board that simplify prototyping circuits for a variety of Op-Amp circuits.
Tiny Professional Microphone Preamplifier
This board has been designed around INA217 low distortion, low noise instrumentation amplifier.
High Performance Stereo Audio Amplifier using LM3886
The LM3886 is a high-performance audio power amplifier capable of delivering 68W of continuous average power to a 4Ω load and 38W into 8Ω with 0.1% THD+N from 20Hz–20kHz.