Many electronic projects require the use of a small audio amplifier. Be it a radio transceiver, a digital voice recorder, or an intercom, they all call for an audio amp that is small, cheap, and has ...

As Axiom’s chief R&D engineer Tom Cumberland describes it, a digital amplifier is a “power DAC”, and of course a DAC (Digital-to-Analog Converter) is the basis of all digitally recorded media, whether ...

International Solid-State Circuits Conference in San Francisco always seems to make space for audio amplifier developments, and this year is no exception, with some extraordinary distortion and noise ...

Click modulation is a coding technique that was developed in the mid 80's by Logan (1984) to retrieve information encoded by the zero crossings of certain bipolar signals. Somewhat akin to pulse-width ...

In a balanced op-amp circuit, the op-amp inputs see equal impedances looking into the circuit. Balanced circuits provide better performance by cancelling some input errors and have a simple R F /R I ...

Two of the most often used amplifier building blocks in audio amplifier design are the common emitter amplifier with emitter degeneration and the emitter follower using the same circuit biasing. The ...

If you know anything about a transistor, it’s probably that it’s a three terminal device whose output pin forms part of a potential divider whose state is dependent on what is presented to its input ...

There is a revolution happening in audio. The days of heavy, hot, power-sucking audio amplification are fast passing, replaced by an era of a new type of digital audio amplifier, the “T” amp. These ...

STMicroelectronics has unveiled new class-D automotive audio amplifiers for smart-cockpit applications, engineered for tiny overall dimensions and with a digital input that simplifies circuit design.

If you can find one, the new STA333IS digital audio chip and power amplifier from STMicroelectronics (STM) offers a quick and easy solution for converting digital audio into a 10 watt/channel stereo ...