GPRS无线通信模块MC35I及其外围电路设计

GPRS Module MC35I and Its Peripheral Circuit Design

介绍了Siemens公司的GPRS模块MC35I、MAXIM公司的电平转换芯片MAX3238,以及由其组成的移动终端,给出了相应的硬件电路,对具体的电路进行了简要的分析,指出了实际设计中出现的问题和解决办法。

In this paper, GPRS module of Siemens MC35I and MAX3238 chip of voltage switch are introduced, and the mobile terminal made up of them is analyzed. The hardware principle diagram and a brief description about the actual circuit has been given. At last, the author designates the questions in practical application and gives the solution accordingly.