Tag: Audio

This is a headphone amplifier project for audio digital-to-analog converters (DACs) with differential voltage outputs. This circuit converts the differential voltage output of the DAC to a single-ended, ground-referenced signal and provides the additional current necessary for...

A couple of days back, Raspberry Pi announced the four most popular IQAudio products to join the Raspberry Pi product line which, as the name suggests, are Audio add-ons. IQAudio previously sold expansion boards knowing the capabilities of Raspberry Pi for hi-fi audio.  This is the...

This is an “Audio VU Meter” or “Sound Level Meter”, it is a general-purpose bar-graph Audio VU meter designed for fun projects. All you need is to hook up one wire to the output of the audio amplifier’s speaker pin along with GND and see the magic. The response of the circuit...

Ruben Henares has designed a Maxmix controller with a stylist knob that could save us the stress of having to always go through the menus and on-screen sliders to change the volume of individual apps on our PCs. The knob on the controller takes an input from the encoder/button to...

Good news for all audio enthusiasts: we are proud to present yet another all-analog circuit developed entirely in house. Despite the simple design of this audio power amp with just one pair of transistors in the output stage, Q-Watt can deliver over 200 quality watts into 4 ohms with...

While the ATtiny series of microcontrollers have been around for a long time, their popularity until recently was low. DIY enthusiasts and Professional designers now use them in diverse projects, most of which, in the past, would have featured an Arduino or a bigger MCU like the...

Infineon Technologies AG developed the world’s first fully self-contained Raspberry Pi audio amplifier HAT (Hardware attached on Top) board. It offers high definition audio at boom box power levels in a small form factor. The Infineon proprietary multilevel technology ensures minimum...

The EVAL_AUDAMP24 e-mode GaN HEMT-based evaluation board from Infineon Technologies is a 2-channel, 225W/ch (4Ω at ±43V) or 250 W/ch (8Ω at ±63V) half-bridge class D audio power amplifier for high-end Hi-Fi audio systems. This evaluation board demonstrates how to use the IGT40R070D1...