微波EDA网,见证研发工程师的成长!
首页 > 研发问答 > 微波和射频技术 > 天线设计和射频技术 > 2.2 GHZ pll help required

2.2 GHZ pll help required

时间:04-12 整理:3721RD 点击:
I am developing a 2.2 ghz pll please help especially regarding pll design . please refer Ebooks and other resources for the design. i have uploaded my design specifications in the file attached.






Junaid Alam
Pakistan

there is a lot of application note and literature available:

http://www.minicircuits.com/application.html
http://www.alphaind.com/ (look for application notes)

simplest way is to use National Semiconductor PLL webench at: http://www.national.com/appinfo/power/webench/

I am sure that your design will work :)

Hi. I had taken a look at your spec/abstract. You should have some basic PLL parameter to start off your design.

Since you are designing a fixed frequency PLL, presumably you are not concerned about switching speed, but what about yout reference spur suppression, and phase noise requirement.

About your VCO design, things such as VCO tuning voltage level will design your loop filter topology.

Assume some basic spec for your PLL, for eg

Reference spur suppression @100MHz offset: XdBc
Phase Noise
@ 1KHz : -X1dBc/Hz
@10KHz : -X2 dBc/Hz
@100KHz -X3dBc/Hz
@1MHz -X4dBc/Hz

上一篇:Oscillator Design
下一篇:最后一页

Copyright © 2017-2020 微波EDA网 版权所有

网站地图

Top