SIM卡与GSM/DCS双频手机的接口设计

A Design of the Interface between SIM and GSM/DCS Handset

在介绍 GSM Phase 2 SIM卡的组成、类别、物理结构和电性能的基础上设计了一种 SIM卡与 GSM/ DCS双频手机之间的接口电路并对其工作原理和数据传输等作了详细说明。

In this paper, the composition, category, physical structure and the electrical performance of the SIM (GSM Phase 2) are introduced, and an interface circuit between a SIM and GSM/DCS handset is designed, and the principle and data transfer of the interface are expounded in details.