On the basis of the mathematical analysis of analogue noise in acoustic domain

this article puts forward the engineering mathematics model which is used to solve the problems

and successfully designs a new

simple and applicable numerical control output circuit to counterthe special subject of the numerical control output analogue noise. It is also proved from both thetheory and practice that the pioneering work is reasonable and scientific. At the same time

the newcircuit can be used in every sort of D/A conversions. The plan is more valuable for reference andenables you to draw on the good experience of it in similar circuit designs. Thus it can be fur foerpoplarized.