Pulse-width-adjustable picosecond-level high-frequency pulse generator based on crystal oscillator frequency difference

Abstract

The invention discloses a picosecond-level high-frequency pulse generator with adjustable pulse width based on crystal oscillator frequency difference, which relates to the technical field of digital information transmission and signal transmission, and comprises a first crystal oscillator module and a second crystal oscillator module which respectively generate a first crystal oscillator frequency and a second crystal oscillator frequency with different frequencies; the pulse trigger module receives the first crystal oscillator frequency and the second crystal oscillator frequency and is used for generating 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 and the second crystal oscillator frequency and is used for obtaining a frequency comparison result according to the first crystal oscillator frequency and the second crystal oscillator frequency; and the control module receives the frequency comparison result, and is used for controlling the first crystal oscillator module or the second crystal oscillator module to adjust the generated crystal oscillator frequency according to the set working state according to the frequency comparison result, and selecting the required pulse signal from the pulse signals according to the crystal oscillator frequency difference and the required pulse width. The crystal oscillator frequency output by the crystal oscillator module is automatically adjusted; and the pulse width can be flexibly selected.

Description

technical field [0001] The invention relates to the technical field of digital information transmission and signal transmission, in particular to a picosecond-level high-frequency pulse generator with adjustable pulse width based on crystal oscillator frequency difference. Background technique [0002] The high-frequency pulse signal generator is mainly used to generate a rectangular pulse generator with adjustable width, amplitude and repetition frequency, which can be used to test the transient response of a linear system, or use an analog signal to test radar, multiplex communication and other pulse digital system performance. 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. Contents ...

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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