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意法半导体公司生产的ST7538单片IC是一种为电力(交流电源)线通信网络应用而设计的半双工同步/异步FSK调制解调器。ST7538操作由内部的寄存器控制,该寄存器通过同步串行接口可以编程。基本结构和引脚功能 ST7538的内部结构框图如图1所示。ST7538采用44引脚TQF封装,外形和引脚排列如图2所示。ST7538各个引脚功能如表1所列。
The STMicroelectronics ST7538 monolithic IC is a half-duplex synchronous / asynchronous FSK modem designed for power (AC) line communications network applications. The ST7538 operation is controlled by an internal register that can be programmed via the synchronous serial interface. The basic structure and pin functions ST7538 internal block diagram shown in Figure 1. The ST7538 is available in a 44-pin TQF package, with the outline and pinout shown in Figure 2. ST7538 pin functions listed in Table 1.