Linear Vco

This VCO uses an LF356 op amp to produce a linear frequency vs. voltage characteristic using the CMOS HC4046. The frequency rang
Linear Vco - schematic

e can be changed by changing the capacitor connected between pins 6 and 7 of the HC4046. Using the HC4046`s internal transistor instead of an external component achieves the linearization in diagram.

Recommended videos

  • VCO Audio Applications Part 1- Synthesizer Building Block (Voltage Controlled Oscillator)
    Duration: 6:31.
  • Electronics: Introduction to LC Oscillators circa 1974 US Air Force Training Film
    Duration: 19:55.
  • VCO Audio Applications Part 2- Frequency Modulation (FM) Voltage Controlled Oscillator
    Duration: 7:11.