【摘要】 介绍了一种中低速调制解调芯片 MSM75 12 B的基本功能和工作原理 ,阐述了基于该芯片的调制解调软硬件设计 ,给出了它在单片机数据通信中的应用 .该芯片具有成本低、外围电路简单、解调灵敏度高的特点 ,可适用于多种远程监控及数据远程传输等场合 .更多还原

【Abstract】 MSM7512’s functions and application are introduced first,then a modem for data transmission based on Msm7512 are investigated. Msm7512 has the advantage of low cost, ease of circuit design, and high demodulation sensibility. It can be used in remote monitoring, data transmission, and other circumstances.更多还原