100 mhz frequency to voltage converter

Frequency to voltage converter is used in measurements and instrumentation like Tachometer uses Frequency to voltage converter to calculate the speed of a motor. Different kind of gauge meters, speedometers also use this technique. Would I use 5V to supply the IC? KA IC KA is a voltage to frequency converter which is used to make a simple low-cost analog to digital converter , but it can also be used as a frequency to voltage converter. Get Our Weekly Newsletter!

Helena St. Related Content. Pull Up and Pull Down Resistor. Log in or register to post Comment. You must choose component values so that your source signal is able to drive the circuit. Notice if your input resistance is very high, then it will change the RC time constant, which will alter the shape of your rolloff curve. BradtheRad said:.

Click to expand Thank you BradtheRad. What exactly is the function of the peak detector in the circuit? As in, why is it needed? The HPF produced a voltage proportional to the input frequency anyways right? Hi, A clock signal is square wave Therefore the RC may introduce some unlinearity.

Use the VCO input signal. It is as linear as the VCO's V-f linearity. Give the counter values to a DAC. Clear counter, count the clock pulses for exactely 10us, send the counter value to a 10 bit DAC. KlausST said:. I assumed you wanted DC output, that is the purpose of the peak detector. Shandong Ozer Electric Technology Co. Sign In. Join Free. Inquiry Basket. Get Apps Download App!

Search by image. Products Suppliers Sourcing Requests Products. All Categories. Post Sourcing Request. Frequency to Voltage Converter 1MHz. The operational amplifiers are used for signal processing.

And the RC networks are used to remove the frequency dependent ripples. The diagram below shows the basic circuit of frequency to voltage converter using op-amp and RC networks:.

The input frequency given to this converter can be in the range of kHz. And the output can be between 0 to V. The above block diagram shows a frequency to voltage converter.

The circuit charges the capacitor to a certain level. An integrator is connected in it and the capacitor discharges into this integrator or a low pass circuit. This happens for all the cycles of the input waveform. The precision switch and the monostable multivibrator generate a pulse of a specific amplitude and period which is fed into the averaging network. Hence we get a DC voltage at the output. This is the circuit diagram of frequency to voltage converter using LM This IC is basically a voltage to frequency converter but it can be used as a frequency to voltage converter.

Its applications also include A to D conversion and long term integration. In this circuit, lm is used to convert frequency into voltage. The voltage on the output is proportional to the frequency at the input.