PLL design Mathcad code needed

Does anyone have mathcad code to design 4th-order or 5th-order charge pump PLL.

thanks a lot for your help.

did u checked www.circuitsage.com

khouly

Yes, I checked the website, but most of them are for 3rd-order PLL.

Go to National Semiconductor and download Dean Banerjee's PLL app note/book. Detail's on how to calculate 4th and 5th order PLL's. It's not in Mathcad, but it won't take you more than 1 afternoon to type it all in. (Assuming Mathcad doesn't crash ! )

Dave

u can use any good calculator to do this routine , 2 years ago , i implemted the 2nd and 3rd order designs with my ti92plus

khouly