EDN

Create radio receiver circuits with the LM386 audio amplifier

Although the ubiquitous LM386 IC was designed to be used as an audio amplifier, it has a number of undocumented characteristics that can be exploited to create simple radio receiver circuits that ...
EDN

Ku-band RF PLLs have integrated VCO for low phase-noise local oscillator circuits

The TFF100xHN family of Ku-band RF PLLs has integrated VCO intended for low phase-noise local oscillator (LO) circuits in Ku-band VSAT transmitters and transceivers. Manufactured in a high-performance ...
Hackaday

rf oscillator

There are plenty of hobbies around with huge price tags, and ham radio can certainly be one of them. Experienced hams might have radios that cost thousands of dollars, with huge, steerable antennas on ...
RF Globalnet

Breaking Down The Barriers In High-Frequency RF Engineering

Engineers designing RF systems at millimeter wave frequencies face exponentially increasing challenges as losses compound, ...
Electronic Design

Use Current-Mirror Biasing To Avoid Squegging In RF Oscillators

If you've ever designed an RF oscillator, you've probably encountered squegging. Sometimes called "motor boating," squegging causes oscillators to start and stop at frequencies much lower than the ...
Nature

A Simple Method of Producing Wide-Band Frequency Modulation

THE resistance-capacity tuned oscillator is well known as a very good generator of audio-frequency oscillations. In a recent communication by Rakshit and Bhattacharyya 1 it was pointed out that the ...
Electronic Design

Simple Tester Provides Readout of Crystal Frequency

Using this Pierce-oscillator circuit, users can test and verify the basic operation of a crystal in parallel-resonance mode. It allows the user to calculate and set the critical external capacitor ...