本文提出了一种以单片机和高性能芯片为核心研制的全数控听觉测试仪。它输出的高精度频率和高纯度正弦信号，在频率和幅度上均采用数......

A digital-controlled measuring instrument for hearing, which is mainly composed of STC11F16EX, AD9833, ISD400416MS and L......

An open-ended and multifunctional double-channel signal generator, which based on a 32 bits monolithic integrated microc......