Abstract
This design mainly spoke the utilization simulation technology and the numeral technical design numeral demonstration multi-channel voltage some principle work method, as well as some matters which should pay attention in the design, moreover the detailed introduction has also used the chip in the design the function and some application method, because we design time the circuit diagram used Protel 2004 therefore also introduced Protel 2004 knowledge in this design. Although we introduced regarding this book design in the chip knowledge and the Protel 2004 knowledge are possibly many, looked by the experienced designer, this is not suitable, is not the matter which unnecessary does. But I thought if faces is these beginners as well as some amateurs is dissimilar, not only in this design knowledge can let them know the digital demonstration the manufacture process, the attention important regulation, moreover we introduced the elementary knowledge also can expand their thought to let them extrapolate in later design, has the very good help regarding they later design profession. In this design characteristic is simple, easy to understand, the basic block, is the beginner good choice. Certainly in this design also has very many insufficiencies, in the design cannot manifest specialized person's one side, hoped very much gives the comment, we correct promptly.
Key words: Digital demonstration multi-channel voltages, simulation technology, digital technology, Protel 2004
