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## Pll Natural Frequency |

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natural frequency pll , natural frequency , pll with fixed frequency , pll frequency synthesizer

natural frequency pll , natural frequency , pll with fixed frequency , pll frequency synthesizer

10 Threads found on edaboard.com: **Pll Natural Frequency**

The **natural** **frequency** of a system is the **frequency** at which it would oscillate (say, for a step input) if there is no damping.
So does this mean, the ideal **natural** **frequency** should be as low as possible? So that it does not oscillate and just settles quickly
I have a **pll** with an output (...)

Analog Integrated Circuit (IC) Design, Layout and Fabrication :: 10-13-2015 08:33 :: amsdesign :: Replies: **1** :: Views: **956**

What is the formula for the 3dB bandwidth of a **pll** in terms of the **natural** **frequency** and damping???
All the formulas I see online are giving me one answer, but when I create a simple linear AC test
bench in Cadence and do an AC simulation, I am getting a different answer. Can somebody look at
this test bench and tell me if I am doing (...)

Analog Circuit Design :: 05-21-2015 15:59 :: mischivis :: Replies: **0** :: Views: **668**

Hi,
Loop filter is to proved dc voltage to VCO and hence VCO provides **frequency** based upon input control voltage. There are calculations from loop filter for stable operation of **pll** like Bandwidth, damping factor, **natural** frequrency, phase margin.
Bye.

Analog Circuit Design :: 02-05-2011 09:17 :: coolstuff07 :: Replies: **3** :: Views: **1088**

Hi,
If I am building a **pll** to lock on to a shifting signal around the range of 160Mhz, I would like to achieve a faster lock time... what is the parameter I can tweak to achieve this?
Can I simply increase the **frequency** resolution? meaning smaller channel BW
Thanks
regards

Elementary Electronic Questions :: 10-28-2009 07:08 :: watertreader :: Replies: **1** :: Views: **1148**

1,
When designing **pll**, it is always said that **pll**'s bandwidth should be set to be smaller than Fref/10. what's the **pll** bandwidth? Is it Wc(open loop unit gain bandwidth), Wn( **natural** **frequency**) or W-3db ( closed loop -3db **frequency**)?
2,
and I know Wc means the **frequency** (...)

Analog Integrated Circuit (IC) Design, Layout and Fabrication :: 03-12-2009 15:27 :: flesher :: Replies: **1** :: Views: **2175**

I am just curious to know why you would want to use a 3rd order loop filter?Is it because of jitter considerations(since the VCO ripple is reduced?).
As far as I know, all the papers on **pll**s have used only a 2nd order LPF with the 3rd pole being far enough so as to not interfere with stability.
Further, may be you can derive the transfer functi

Analog Circuit Design :: 07-17-2008 20:02 :: A_U_J :: Replies: **4** :: Views: **5320**

1) **pll** **natural** **frequency** <=Hsync **frequency**/**pll** Stability Ratio
2)**pll** **natural** **frequency** = square root
Ct=0.082uF Ip=charge pump current
N=**pll** Divide Ratio P=Post Divide Factor*
pi=3.14 Kvco=MHz/V
Can anyone (...)

Analog Circuit Design :: 04-09-2007 03:29 :: evence :: Replies: **0** :: Views: **1321**

Hi,
I would like to ask: how can you estimate the damping factor and the **natural** **frequency** from the plot of the transfer function of a device (say **pll**)?
Added after 2 hours 2 minutes:
I actually found the method to estimate those parameter. I uploaded the file just in case anyone wants to reference to it

Analog Circuit Design :: 10-25-2006 15:31 :: ericnguyen :: Replies: **1** :: Views: **1226**

Capture range, ?ωL, is the range of frequencies were if the **frequency** of the reference signal, Sr, get into it, the **pll** will try to acquire lock in at most one period of the **natural** **frequency**, Wn.

Analog Integrated Circuit (IC) Design, Layout and Fabrication :: 10-25-2006 20:20 :: Miguel Gaspar :: Replies: **2** :: Views: **1564**

hi
Can you pls explain the meaning and physical significance of the following terms which we usually use with **pll**.
1. **natural** **frequency** ( Wn)
2. Loop bandwidth. (Wc)
yours
SavithRu

Analog Circuit Design :: 06-20-2006 06:44 :: savithru :: Replies: **4** :: Views: **7142**

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lcd starter kit | coplanar wave port | atmega16 pwm | ads kit design | hfss error | switching power supply design | rfid diagram | spectre measure | grid matlab | cyclic prefix matlab