许多工程人员对选择频率合成器,感到是个难题。因为合成器对他们来说,仍然是比较新鲜。而且合成器中的某些方面(如相位噪声和转换速率)在其他设备上是不同的。在大多数频率合成器的使用中,最重要的有四个方面,即稳定度、假信号含量、残余相位噪声和转换速率。使用还决定其他方面的相对重要性,如输出振幅、搜索扫描能力、频率 Many engineers find it difficult to choose a frequency synthesizer. Because synths are still new to them. And some aspects of the synthesizer (such as phase noise and slew rate) are different on other devices. In most frequency synthesizers, the four most important ones are stability, false signal content, residual phase noise, and slew rate. The use also determines the relative importance of other aspects such as output amplitude, search scan capability, frequency