PFD noise contribution in PLL

We know that PFD, Charge pump,LOOP filter all contribute in-band noise for an integer-N PLL. Which is the main noise sources to contribute in-band noise, PFD or charge pump,or other block?[/img]

I think it should be Charge pump. and the resistor of LOOP　Ｆｉｌｔｅｒ　ｗｉｌｌ　ｃｏｎｔｒｂｕｔｅ　ａｌｓｏ．

Thanks for your reply.
We know that if the on time Ton of Charge pump decreases, the noise of Charge pump will also decrease. So i think if Ton is very small(about 1ns), the noise of Charge pump will be very negligible. And I think the loop filter will contribute the majority in band noise of PLL.
Please comment on my idea.