CD4093 is 2 input terminal four with non-Schmidt trigger. CD4093 has requirements for the input voltage threshold. If the input voltage threshold is enough, the output will emit a square wave.
The sine wave input waveform is low, CD4093 does not flip, and the output is an induced sine wave. Increase the input sine wave voltage, there is a negative voltage, will damage the chip.
Translate and amplify your sine-wave input signal into CD4093.