Clock phase-splitting technology-based precise digital time delay synchronous machine and time delay method

Abstract

The invention relates to a digital time delay synchronous machine and a time delay method, in particular to a clock phase-splitting technology-based precise digital time delay synchronous machine and a time delay method. In order to solve the problems on complexity in setting up a charge-discharge constant-current source and a phase detection and phase compensation circuit in the prior art, the invention provides a precise digital time delay synchronous machine based on a clock phase-splitting technology, which ensures that precise time delay compensation of the time delay synchronous machine is achieved, and circuit setting-up is simple and reliable and is low in power consumption. In the technical scheme, the precise digital time delay synchronous machine comprises a front-end signal conditioning module, a delay synchronous control module, a signal driving module and an upper computer control module, and the delay synchronous control module comprises a clock phase-splitting circuit module, a counting delay circuit for accomplishing counting and data comparison and a communication interface module. Before synchronous signals enter each path, the digital time delay synchronous machine is applied to carry out predelay to compensate the nonuniformity of each path of system so that the output of each system is in an occasion of the synchronous signals.

Description

technical field [0001] The invention relates to a digital delay synchronization machine and a delay method, in particular to a digital delay synchronization machine and a delay method based on clock phase separation technology. technical background [0002] In the physical test of multi-channel systems, it is often required that the signals of each system reach a certain circuit node at the same time, but because the circuit components and installation processes used by each system cannot be completely consistent, a group of synchronous signals passes through each system. After the delay, it becomes an asynchronous signal, which requires an instrument to do a pre-delay before the synchronous signal enters each channel to compensate for the inconsistency of each system, so that the output of each system is a synchronous signal, which is Delay sync machine. Trigger error, delay step and delay range are important technical indicators of delay synchronous machine. [0003] "Nu...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the complex problems of building charge and discharge constant current source, phase detection, and phase compensation circuits in the prior art, and provide a digital delay synchronization machine and a delay method based on clock phase separation technology, so that the delay synchronization machine The delay compensation is more precise, the circuit is simple and reliable, and the power consumption is low

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