Picosecond level high-frequency pulse generator with adjustable pulse width based on crystal oscillator frequency difference

Abstract

The invention discloses a picosecond-level high-frequency pulse generator with adjustable pulse width based on the frequency difference of crystal oscillators, which relates to the technical field of digital information transmission and signal transmission, including: a first crystal oscillator module and a second crystal oscillator module respectively generate second pulses with different frequencies A crystal oscillator frequency and a second crystal oscillator frequency; the pulse trigger module receives the first crystal oscillator frequency and the second crystal oscillator frequency, and is used to generate a pulse signal according to the crystal oscillator frequency difference between the first crystal oscillator frequency and the second crystal oscillator frequency; the clock synchronization comparison module receives the first crystal oscillator frequency The crystal oscillator frequency and the second crystal oscillator frequency are used to obtain a frequency comparison result according to the first crystal oscillator frequency and the second crystal oscillator frequency; the control module receives the frequency comparison result and is used to control the first crystal oscillator module or the second crystal oscillator module according to the frequency comparison result. Adjust the frequency of the crystal oscillator generated by the fixed working state, and select the required pulse signal among the pulse signals according to the frequency difference of the crystal oscillator and the required pulse width. Automatically adjust the crystal oscillator frequency output by the crystal oscillator module; the pulse width can be flexibly selected.

Description

Picosecond-level high-frequency pulse generator with adjustable pulse width based on crystal frequency difference technical field The present invention relates to digital information transmission and signal transmission technical field, particularly relate to a kind of frequency difference based on crystal oscillator Adjustable pulse width picosecond high frequency pulse generator. Background technique High-frequency pulse signal generator is mainly used to generate the generation of rectangular pulses with adjustable width, amplitude and repetition frequency , which can be used to test the transient response of linear systems, or use analog signals to test radar, multiplexing, and other pulsed digital system performance. When analyzing RF signals in RF circuits, pulse signals with the highest pulse width of picoseconds are required as parameters. However, the existing high-frequency pulse signal generator needs to use a complex processor, the cost is relatively hig...

AI Technical Summary

Problems solved by technology

When analyzing RF signals in RF circuits, the pulse signal with the highest picosecond pulse width is required as a reference, while the existing high-frequency pulse signal generator needs to use a complex processor, which is costly, or mostly uses LC oscillators , there is a problem of easy drift, which requires real-time calibration

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