A low-power high-resolution delta-sigma modulator for consumer audio chip is described. The modulator uses a 4th-order CRFF topology based on switched-capacitor ...

The circuit, which is presented here, is used to change the tune/melody into a different pitch level by devoid of loss in the tune. The characteristics of the signal might be varied at different ...

Silicon monolithic circuits are best suited for applications with low power dissipation. Conventional approaches to audio power amplifiers have a rather limited efficiency, and are therefore not ...

Here this circuit is based on the principle of audio amplification using operational amplifier and pulse width modulation using 555 Timer. In this article we are describing the principle, design and ...

The Audio Designline Blog is about all things related to audio design. It is written by Rich Pell, the site editor for Audio Designline and executive ...

M. Dessouky and A. Kaiser, “A 1-V 1-mW Digital-Audio Modulator with 88-dB Dynamic Range Using Local Switch Bootstrapping,” Proceedings of the IEEE Custom Integrated Circuits Conference, Orlando, 21-24 ...

International Rectifier introduced a Class D audio chipset comprising the IRS20965 digital audio driver IC with protected Pulse Width Modulation (PWM) switching and a full complement ...

The HFDA801A from STMicroelectronics is a 2MHz switching pulse-width modulation (PWM) Class-D amplifier designed for compact, cost-effective automotive applications. This new ASIL-ready ...