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armstron osillator and work

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16y ago

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What are the advantages of clap oscillator?

clapp oscillator have frequency more stable and accurate than colpitts oscillator.


What is the difference between crystal and local oscillator?

oscillator frequency is different.crystal working piezo electric effect


What type of oscillator used in handwatches?

a crystal 32.768kHz oscillator.


Why you use capacitors with crystal oscillator?

To increase the efficiency. Comparison between crystal oscillator and ceramic resonator.


Which oscillator produces 1MHz frequency?

One type of oscillator that can produce a 1MHz frequency is a crystal oscillator. Crystal oscillators use a quartz crystal to generate stable and precise frequencies. They are commonly used in electronic devices like radios, computers, and microcontrollers to provide accurate timing signals.


Is RC phase shift oscillator more stable than a crystal oscillator or not?

no


Why is a crystal oscillator required in a radio transmitter?

SOME kind of oscillator is required, to create the AC signal that will be modulated, amplified, and eventually sent up to the antenna to be transmitted. It doesn't have to be a crystal oscillator, though.


Why use capacitors with crystal oscillator?

There are two kinds of crystal oscillators. One operates at what is called the "series resonance" of the crystal. This resonance is the frequency at which the (AC) impedance between the pins of the crystal is almost zero. The frequency is independent of how much capacitance happens to be in parallel with the crystal - its inside the oscillator and part of the circuit board, etc. But, even frequency that the oscillator runs at.The other kind of oscillator oscillates at "parallel resonance"of the crystal. At this frequency, the impedance from pin to pin of the crystal is almost infinite. This frequency depends on how much capacitance is connected in parallel with the crystal. This parallel capacitance is called "load capacitance". Generic signal-inverter oscillator is this kind of oscillator.The common oscillator connection is for the crystal to be connected from the inverter output to the input. And, there is a capacitor at each end of the crystal to ground. The NET load capacitance is SERIES equivalent value of those two capacitors.PLUS stray capacitance from the circuit board and the guts of the oscillator. Suppose that the crystal is rated for 22pF load capacitance. The stray capacitance is about 7pF. So, that leave 15pF to be made up from discrete external capacitors. If the external capacitors are equal, then their equivalent is half of their individual value. Thus, in this case, we would want a pair of 30pF capacitors.


What is the purpose of an oscillator crystal?

"A circuit within a computer that creates a series of pulses that pace the computer's electronic system. The oscillator clock synchronizes, paces and coordinates the operations of the computer's circuit." -- webopedia


What type of oscillator has got frequency stability?

A: desirable oscillator will have no frequency deviation as a function of external influences such as temperature and more. Stability is measured as a % factor considering outside interferences


Is crystal oscillator used in Varactor diode modulator?

YES


What is a pulse rate of a clock measured in?

frequency of an oscillator crystal