With so much attention on IBOC, it is appropriate to step back and review the basic principles of RF amplifiers. The radio transmitter is a collection of stages. Each stage modifies the signal in some ...

Oscillators and pulse-generators using operational-amplifier ICs have been proposed by many authors. Such generators can be found in a flood of articles in journals, magazines, books, and IC ...

The switching amplifier, or class D amplifier, has risen quickly to prominence in consumer audio applications, from MP3 devices including mobile phone handsets to games consoles, LCD-TVs, and home ...

Marked: "Grebe Radio / Richmond Hill, N.Y. / Type RORN / Tuned Radio Amplifier / 150 to 3000 M. / Serial No. 294." Plate: "Manufactured Under Grebe Patents Granted and Pending. Unit is a single stage ...

Though sometimes taken for granted, designers shouldn’t overlook the intricacies of voltage- and current-feedback op amps—integral players in the analog and mixed-signal worlds. Op amps amplify tiny ...

Video op amps have improved significantly since their debut in the early 1990s. The first versions operated from ±15V supplies, featured bandwidths of 50 MHz, and delivered slew rates in the low ...

This “Product How-To” article focuses how to use a certain product in an embedded system and is written by a company representative. Audio amplifier products are becoming more and more advanced in ...