Tag Archives: Oscillators

Digitally Programmable Oscillator

Posted on February 22, 2011 by Rend

The schematic diagram below shows a digitally programmable oscillator circuit. This programmable oscillator circuit is based on V/F (voltage to frequency) converter, which is programmable by an analog voltage at the input. To make it digitally programmable, a DAC (digital … Continue reading →

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Astable and Monostable Multivibrators

Posted on November 25, 2010 by Rust

Multivibrators is two state devices which is used extensively in digital electronics. The bistable multivibrators or called filp-flop are the basic memory devices used in sequential logic. Beside bistable multivibrator, there are also astable multivibrator which serves as an oscillator … Continue reading →

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Varactor – The Core of Voltage Controlled LC Tuner

Posted on November 25, 2010 by Rust

In hybrid system, analog system with digital control, a voltage controlled things is very important since it can be interfaced by DAC from digital system. For radio tuning with digital control, a voltage controlled LC circuit is needed. If we … Continue reading →

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