With very low harmonic distortion, 2N4416 JFET is suitable to smoothly oscillate in a circuit. On application where low harmonic content is required for a good mixer circuit, JFET local oscillator is very good. Below is the circuit diagram of Low Distortion Oscillator:
And here’s the 20 MHz Oscillator Values
- C1 = 700 pF L1 = 1.3 mH
- C2 = 75 pF L2 = 10T 3/8″ DIA 3/4″ LONG
- VDD = 16V ID = 1 mA
20 MHz OSCILLATOR PERFORMANCE
- LOW DISTORTION 20 MHz OSC.
- 2ND HARMONIC -60 dB
- 3RD HARMONIC > -70 dB
[Source: National Semiconductor Application Note]
Possibly Related Articles:
- Low Distortion Crystal Oscillator
This is a Low Distortion Crystal Oscillator circuit. This circuit generate a sinewave that has low phase noise and distortion. This circuit can be used to perform a crystal with... - Low Distortion Adjustable Audio frequency Oscillator
Low distortion circuit is very important if we want to measure distortion level of an audio equipment, but this is just one example of low distortion oscillator circuit application. Here... - Colpitts Crystal Oscillator
Crystal Colpitts oscillator can be implemented using a transistor and a parallel mode crystal. Here is the schematic diagram of the circuit: In this circuit, the crystal acts as an... - Voltage Controlled Oscillator with Varactor
This is a Voltage Controlled Oscillator (VCO) circuit. This circuit is based on Hartley oscillator. The frequency depend on the value of C1 and L1. The oscillation-frequency will change as... - Stable Low Frequency Crystal Oscillator
This is a Colpitts-crystal oscillator circuit. It is suitable for low frequency crystal oscillator circuits. Using the 2N3823 JFET, this circuit has excellent stability because the temperature will not vary... - PLL Oscillator for Medium Wave Application
PLL oscillator is used to get very stable frequency woth very low distortion of sine wave output. The stability is equal to crystal-based oscillator, and the low distortion level of... - Pierce XTAL Oscillator Using JFET
This circuit is conventional “Pierce” type oscillator that uses a JFET. The circuit uses fundamental mode crystals. It has decent performance and reliability if we use a low noise JFET.... - High Frequency Colpitts Crystal Oscillator
Op-amps has been widely used in low frequency oscillator (frequency <= 100kHz), but we can actually use it for high frequency crystal oscillator as long as we have an op-amp... - Crystal Oscillator Using Transistor, Capable of Overtone Operation
This circuit is a simple crystal oscillator that can be operated in overtone mode. Overtone mode permit the operation at higher frequency than specified by the crystal. The circuit uses... - Bubba Oscillator
Bubba oscillator is another example of phase shift oscillator. The Bubba oscillator takes the advantage of quad op-amp package to get 45 degree phase shift for each section. The result... - Quadrature Oscillator
Quadrature oscillator generate two sine-wave signal, but one signal is shifted 90 degree from the other signal. One output that lead the other called cosine signal, and the other is... - Sawtooth Wave Oscillator
Sawtooth wave oscillator is used in cathode ray tube deflection circuitry, in a PWM modulator, or in a analog to digital conversion. You can also use it in your own...
| 
