Is an example for a frequency multiplier?
__________ is an example for a frequency multiplier. Explanation: A non linear device has the ability to generate the harmonics of the input sinusoidal signal. Transistor and diodes are non linear devices and hence can be used as a frequency multiplier.
What does a frequency multiplier do?
In electronics, a frequency multiplier is an electronic circuit that generates an output signal and that output frequency is a harmonic (multiple) of its input frequency. Frequency multipliers consist of a nonlinear circuit that distorts the input signal and consequently generates harmonics of the input signal.
Which circuit is used to double the frequency?
Abstract: A simple circuit consisting of a comparator and an exclusive-OR gate is sufficient to double the frequency of a reference signal.
Which statement is true about frequency multipliers?
Explanation: Frequency multiplier multiplies the frequency of the input by an integer, such that the output is a multiple of the input. Frequency multipliers are generally class C amplifiers.
How do you find the desired amount of multiplication in frequency multiplier?
1. How to obtain a desired amount of multiplication in frequency multiplier? Explanation: The desired amount of multiplication can be obtained by properly selecting a divide by N-network. For example, to obtain the output frequency fout=5×fin, a divide by N = 5 network is needed.
Which statement is true about frequency multipliers *?
Which diode is used in frequency multiplier circuit?
Planar Schottky varactor diodes
Planar Schottky varactor diodes are commonly used in frequency multipliers, taking the advantage of GaAs substrateless technology to reduce substrate loss. The drive sources can be BWOs or solid-state sources such as Gunn and IMPATT oscillators, with relatively high output power in the range of 50 GHz to 150 GHz.
What is frequency multiplier circuit?
In electronics, a frequency multiplier is an electronic circuit that generates an output signal whose output frequency is a harmonic of its input frequency. A subsequent bandpass filter selects the desired harmonic frequency and removes the unwanted fundamental and other harmonics from the output.
Why mixing is used in communication?
Mixers are widely used to shift signals from one frequency range to another, a process known as heterodyning, for convenience in transmission or further signal processing. Frequency mixers are also used to modulate a carrier signal in radio transmitters.
Which of the following statement is true about frequency modulation?
1. Which of the following statement is true about frequency modulation? Explanation: In frequency modulated system, noise is inversely proportional to the frequency deviation. Thus, if we increase deviation then the noise in system gets decreases.
Which diode is used for frequency multiplication and tuning?
Can a XOR be used for digital logic?
An XOR is very useful for this. For digital logic, we generally aim to use a phase comparator based on ‘edges’, just like those square waves and flip-flops which play so nicely together. Certain builds can even introduce a third state into the mix – reducing voltage below zero .
Why is the output of the XOR gate high?
The XOR output is therefore high. If the pin-4 input is now driven high, the XOR gate responds immediately by driving its output low. But after the delay circuit responds (about 15ns in this case), the XOR output returns high.
Can a PLL be used to double the input frequency?
A PLL is overkill for some applications, however, especially if the input frequency needs only to be doubled. For those cases a simpler approach—such as the circuit in Figure 1 — will do the job just as well.
When does an XOR function return’true’?
For the uninitiated, XOR, or exclusive or, is a function which will return ‘true’ when and odd number of inputs are ‘true’. For a two input XOR function, that means only one will be high.