oscilator

I'm trying to find the oscillator circuit in a ti 84 plus ce, and the oscillator is integrated inside an ASIC with ram and cpu, but there would be a circuit that leads out of it. I've tried voltage testing the test points and frequency testing, but there's many voltages that match and the...

Hi. I am looking into a project that would involve measuring the frequency of crystal osc. Aim is to measure accurately without using lab bench equipment. Accuracy: enough to track its deviation from nominal frequency. Nominal freq. of crystal: not decided yet but preferably 10/20 MHz. I'm...

Hi i make an oscillator circuit ( colpitts) and the circuit work in multisim NI produce a sine wave with f=330 kHz if i setup this circuit in bread board i some case not work ? what happen thank George

I need to create an oscillator circuit that works like the following: There are 3 capacitors of equal value. One capacitor charges until it reaches a threshold voltage, and then it is instantly discharged and then the next capacitor gets to start charging. The cycle continues. Only one...

I made this oscillator and the output voltage is 1V, and I need another amplifier to go to 5V and some mv ideally to 10mV, but that is harder. I made this but it doesn't work very well and I don't understand why. I can't work with OpAmps, with only transistors. I put a common emitter with a...

Hello, Im looking for anyone that may be able to help me figure out why my Colpitts oscillator simulation isn't generating a waveform. This circuit has already been tested as a prototype and generates the desired waveform, but for some reason, it won't do it for the simulation. I suspected that...

Hi i run a colpitts oscilator in multisim but the circuit not working on the contrary the circuit in the Breadboard working what happen ?

First, sorry for the bad english. It's not the first time I've been looking for help on this circuit on the forum. I'm from Brazil, I'm doing a university project using which basically consists of using a colpitts oscillator with differential pair, with a SAW sensor in its feedback loop. The SAW...

Hello everyone, I'm building a radio transmitter with a Colpitts oscillator schema and everything works fine. I built the circuit and tested in the Oscilloscope and with L=470uH, C1=100pF, C2=100nF I created a 549KHz 6Vpp senoidal (with 5v as source), as we can see bellow: Theoretically, the...

First, sorry for my bad english. I'm building a project using a Colpitts Oscillator with Differential Pair, designed for ~117.6MHz. I'm using LTspice for simulation. The oscillator individually oscillates, but I need it to oscillate when I add a sensor model (as seen in the image in the...