Third-overtone crystal oscillator

The current draw should be between 80 and 100 mA. The exact value is highly dependent on the Si570, its version (CMOS vs. LVDS), the frequency setting, and variations in the circuit components. The SW1 programming of U3 can...

This circuit functions as an astable multivibrator, also known as an oscillator. The two transistors are interconnected in a manner that allows the circuit to alternate between two states. In one state, the base of transistor Q1 is approximately...

Phase-shift oscillator. An oscillator in which a network has a phase shift of 180 degrees. A phase-shift oscillator is a type of electronic oscillator that generates a sinusoidal output signal. It typically consists of an amplifier and a phase-shifting network...

The Hartley Oscillator is a valuable circuit for generating high-quality sine wave signals in the RF range (30 kHz to 30 MHz). However, at the upper limits of this range and beyond, the Colpitts oscillator is typically favored. Both...

Using two gates from a CMOS 4011 NAND chip, a simple square wave oscillator can be made. Alternatively, a CMOS 4001 chip can also be used, or a TTL equivalent. In this circuit, the mark-space ratio can also be...

The timing resistor R can be adjusted to any value between 10 kΩ and 50 MΩ to achieve a frequency range from 400 kHz to 100 Hz. Connecting the timing resistor to the collector of Q1 ensures that Q1...