基于AD9954芯片和AD630芯片的简易阻抗测试仪，在系统中，用到两片AD9954，一片做为激励信号源，一片做为相敏检波输入信号，代码为系统主程序代码，AD9954驱动代码-AD630 chip based on the AD9954 chip and a simple impedance tester, in the system, use two AD9954, as an incentive signal source, a phase-sensitive detector as the input signal, this part of the code for the AD9954 chip driver code