介绍了AD420的引脚功能、电气特性，阐述了AD420与MSP430的接口技术，并给出了在MSP430控制下的实际应用电路及程序。
The pin function and the electric characteristics of AD420 are introduced and its interface with MSP430 is described. The application circuit and the programme in the control of MSP430 are given.
介绍该电路的特点、引脚功能和电气特性，给出其典型应用电路及工作原理。
The characteristics, pins function and electrical characteristics are introduced in this paper, the typical application circuit and working principle of FM2822 are given.
介绍该电路的特点、引脚功能和电气特性，给出其典型应用电路及工作原理。
The characteristics, pins function and electrical characteristics are introduced in this paper, the typical application circuit and working principle of FM2822 are given.
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