The BCD code needs the synchronous multi-clocks system; therefore,it works step by step at a low speed and can be adapted to the single-chip design of DDS signal generator whose frequency is under 10MHz.

• 由于BCD码逐位计算需使用同步多时钟系统；其工作速度较慢；所以它适合应用于频率范围在数MHz以下的DDS信号发生器的单片式设计.