This paper presents the key circuits of a 1MHz bandwidth, 750kb/s GMSK transmitter. The fractional-N synthesizer forming the basis of the transmitter uses a combined phasefrequency detector (PFD) and digital-to-analog converter (DAC) circuit elemen

PLL system LPF/PFD/VCO/Divider model in Matlab,在Matlab中将PLL系统的各个模块模型话，便于分析整个PLL的环路稳定特性，锁定时间等…… 附录中包含完整的Matlab code

一本介绍怎样将输入法murphytalk.pinyin_0.03移植到qtopia2.2的平台上面的PFD文档，非常有利于学习qtopia2的程序移植经验。-One describes how to input murphytalk.pinyin_0.03 ported to the platform above qtopia2.2 PFD document is very conducive to learning qtopia2 transplant program experience.