Signal generator with external triggering synchronization function, and signal generation method

Abstract

The invention provides a signal generator with an external triggering synchronization function, and a signal generation method. The signal generator comprises a first clock module, a DAC module, a second clock module, a phase difference calculation unit, a waveform generating unit, a phase adjusting unit, a serial-to-parallel conversion unit and a DAC module, wherein the first clock module is usedfor generating a first clock; the DAC module is used for carrying out M frequency division on the first clock to generate a second clock; the second clock module is used for carrying out frequency division and phase shifting on the second clock to generate a third clock, a fourth clock group, a first clock enabler and a second clock enabler; the phase difference calculation unit is used for generating phase difference data and a waveform starting signal; the waveform generating unit is used for taking the third clock as a working clock and generating N paths of parallel first waveform data according to the phase difference data and the waveform starting signal; the phase adjusting unit is used for taking the third clock as the working clock, and generating second waveform data according to the phase difference data and the first waveform data; the serial-to-parallel conversion unit is used for taking the second clock as the working clock and converting the second waveform data into one path of serial third waveform data; and the DAC module is used for taking the first clock as the working clock and converting the third waveform data into a simulated waveform output.

Description

technical field [0001] The invention relates to the field of signal generators, in particular to a signal generator with an external trigger synchronization function and a signal generating method. Background technique [0002] This section is intended to provide a background or context for implementations of the invention that are recited in the claims. The descriptions herein are not admitted to be prior art by inclusion in this section. [0003] A signal generator is a device that provides electrical signals of various frequencies, waveforms, and output levels. It is used as a test signal source or excitation source when measuring the amplitude characteristics, frequency characteristics, transmission characteristics and other electrical parameters of various telecommunication systems or telecommunication equipment, as well as when measuring the characteristics and parameters of components. Functionally, signal generators can be divided into function generators, arbitrar...

AI Technical Summary

Problems solved by technology

If the working clock of the external device is not synchronous with the working clock of the signal generator, the external trigger input signal provided by the external device is also

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