A method of multi-channel pulse acquisition synchronization

In multi-channel pulse acquisition system, it needs to ensure two kinds of synchronization. One is channel synchronization, the other is pulse synchronization. In order to ensure the two synchronizations, a method was proposed by using ADC reset signal to control ADC start-up simultaneously and sequential logic of internal sampling clock fixed. Through the analysis of multi-channel pulse acquisition system architecture, ADC start-up simultaneously could ensure channel synchronization. By the analysis of sequential logic, fixed phase of internal sampling clock could ensure pulse synchronization. Through experiments, channel synchronization deviation is less than 2ps and pulse synchronization deviation is less than 5ps.