Signal generator and memory

The invention relates to the field of semiconductor circuit design, in particular to a signal generator and a memory, and the signal generator comprises an oscillation generation module which is configured to generate an initial oscillation signal based on an oscillation control signal, and the oscillation control signal is used for adjusting the frequency of the generated initial oscillation signal; the duty ratio correction module is connected with the output end of the oscillation generation module and is configured to adjust the duty ratio of the initial oscillation signal based on the duty ratio control signal so as to generate an adjusted oscillation signal; the output interface is connected with the output end of the duty ratio correction module and used for outputting the adjustment oscillation signal to an external test system, and the external test system is used for testing whether the adjustment oscillation signal meets a preset condition or not; and the amplitude adjustment module is connected wi