Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

A question about 4th-order LPF in CP-PLL

Status
Not open for further replies.
S

serenade

Newbie level 6
Joined
Dec 1, 2002
Messages
11
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
77
4th order lpf

Hi, all,
I have a question about the design of 4th-order loop filter for charge-pump PLL. Dean give a method to design a loop filter by given pole ratios. In dean's method, the poles of the filter are all on the real axis, but I think it is possible to design a filter with a pair of complex pole, and It may have better attenuation.

Please give me some advise.

Thanks and best Regards.

Serenade
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top