发射机中频数字化的设计与实现

The design and implementation of the transmitter's IF digitalization

设计了一种发射机中频数字化方案.该方案的显著特点是:调制方式、调制速率、中频频率皆可编程设置.鉴于美国Intersil公司推出的HSP50415数字上变频可编程超大规模集成芯片的参考资料过于简单的问题,介绍了Intersil公司数字上变频器HSP50415的功能和特点,给出用HSP50415实现数字电台中频调制的例子,将对使用这个芯片的设计人员起到借鉴的作用.

A plan of the transmitter's IF digitalization is designed.The outstanding features of this plan lie in the programmable modulate mode,modulate rate, IF rate and so on.Since the reference materials of the digital Up-Converter HSP50415 developed by American Intersil corporation,the functions and characteristics of HSP50415 are introduced in detail.Examples of IF modulation of digital transmitter by HSP50415 are presented, such as DSB,USB and LSB,which can offter good reference to users of this chip.