On the product web page you can find information about available package options for the ADF4212, and the ADF4212BCPS is not listed among them. For this part we provide only 20-lead TSSOP package (ADF4212BRUZ).
In the datasheet there is information about…

您好！

1，是的

2，Vp为电荷泵供电电压，其范围为AVdd~6V，如果压控电压最大为3V，那么供电电压最小为3V，但应注意应大于AVdd

3，对于环路滤波器的设计，带宽和相位裕度请见附件内文档

4，压控灵敏度为VCO的调谐参数，具体请参考VCO数据手册。

楼主，附件有问题，解压不开。重传了一个。