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21 Threads found on edaboard.com: **Rms Noise Phase**

most spectrum analyzers simply measure the power spectral density of the **phase** **noise**, and integrated it to show **rms** jitter. On the average, it is an accurate calculation.

RF, Microwave, Antennas and Optics :: 03-01-2017 10:21 :: biff44 :: Replies: **3** :: Views: **459**

As for a free-run oscillator, the jitter accumulates over time. The wavescope calculates jitter in a certain time windows. My question is if I want to know the **rms** jitter of a oscillator in a time range of ,maybe 4us , then what the is the frequency range for the integral of **phase** **noise** in reponse. （mainly, the lower limit of (...)

Analog Circuit Design :: 01-08-2017 08:50 :: Kristya :: Replies: **0** :: Views: **493**

See equation for **rms** Period Jitter in attached figure.
How to derive this equation ?
Especially, how is sin() term from ?

RF, Microwave, Antennas and Optics :: 03-11-2016 13:46 :: pancho_hideboo :: Replies: **1** :: Views: **665**

In a **phase**-modulation scheme,**rms** **phase** error is very critical,it should be less than 2deg in most cases.
This **rms** **phase** error directly relates to in-loop **phase** **noise** of pll output.
while working with PLL frequency synthesizer, we come across two formulae to calculate (...)

RF, Microwave, Antennas and Optics :: 09-26-2012 00:38 :: afz23 :: Replies: **1** :: Views: **1074**

In a **phase**-modulation scheme,**rms** **phase** error is very critical,it should be less than 2deg in most cases.
This **rms** **phase** error directly relates to in-loop **phase** **noise** of pll output.
while working with PLL frequency synthesizer, we come across two formulae to calculate (...)

Analog Circuit Design :: 09-25-2012 16:07 :: afz23 :: Replies: **0** :: Views: **938**

When I simulated the **phase** **noise** of a ring oscillator based VCO using Spectre p**noise** analysis, I found the **rms** accumulated jitter increasing with increasing the maximum number of sidebands. And the dominant **noise** contributor was the induced gate **noise** of some swtiched off units (Vds = 0) in (...)

Analog Circuit Design :: 01-22-2012 12:58 :: murali83.july :: Replies: **0** :: Views: **637**

Hello
See this topic The Designer's Guide Community Forum - **rms** **noise** value calculation

RF, Microwave, Antennas and Optics :: 06-01-2011 07:38 :: pavel_adameyko :: Replies: **2** :: Views: **5609**

In a CW carrier, the time jitter is figured out by integrating the **phase** **noise**, thereby converting it to pk-pk or **rms** time jitter.
If one is deliberately FM modulating a carrier, then that FM modulation will easily dominate over the **phase** **noise** effect. So all you have to do is analyze the fm modualtion (...)

RF, Microwave, Antennas and Optics :: 03-17-2011 15:33 :: biff44 :: Replies: **3** :: Views: **729**

In general it will depend on the application but good tests include:
- minimum load for stability
- **phase** margin
- gain and GBW
- slew rate OR settling time to a specific level and accuracy
- input common range
- PSRR
- **rms** **noise**
Let us know if you need specific ideas

Analog Integrated Circuit (IC) Design, Layout and Fabrication :: 03-11-2011 16:07 :: dgnani :: Replies: **3** :: Views: **1026**

PLL **phase** Error **rms** = 107 x √ Loop_Bw x 10^(**phase**_**noise** / 20)

RF, Microwave, Antennas and Optics :: 07-04-2010 19:47 :: vfone :: Replies: **11** :: Views: **2553**

1. Power Meter (peak, average, **rms**, etc), Two RF Signal Generators with multiple modulations, Spectrum Analyzer, Load Pull Tuners, Power Supply with accurate current and voltage readings.
2. Network Analyzer, Two RF signal Generators, Spectrum Analyzer with NF measurement option.
3. Spectrum Analyzer with **phase** **noise** measurement option, (...)

RF, Microwave, Antennas and Optics :: 05-21-2009 06:51 :: vfone :: Replies: **2** :: Views: **1039**

I have **phase** **noise** data in on a number of candidate clocks. I need to convert that into time jitter in a certain sample period. For example, I need to find the **rms** time jitter during a 10 millisecond sample period. I do not know how to do that!
I can find all sorts of programs out there to convert **phase** (...)

RF, Microwave, Antennas and Optics :: 01-26-2009 14:20 :: biff44 :: Replies: **1** :: Views: **1851**

question about pll **noise** ,thanks
we have designed a pll,with nearly 4ps **rms** jitter with OSC measured. but with the Spectrum Analyzer ,the **phase** **noise** has the different value in the different frequency point .
we want to know the different of the **rms** jitter and **phase** **noise**: (...)

Analog Circuit Design :: 05-05-2008 07:06 :: eagleliujun :: Replies: **1** :: Views: **771**

I have **rms** jitter specification for a pll. what actually this refers to?
Is this random jitter?
If we do the **phase** **noise** simulation and calculate jitter value, what jitter we get?

Analog Circuit Design :: 09-18-2007 06:48 :: satyasiva :: Replies: **2** :: Views: **1944**

If you know the spectrum of **phase** **noise**, you can get the **rms** jitter by integration. In the website of ADI, you can find some papers about how to integrate, e.x. AN-756.

Analog Integrated Circuit (IC) Design, Layout and Fabrication :: 07-31-2007 13:02 :: borislee :: Replies: **3** :: Views: **1167**

RF, Microwave, Antennas and Optics :: 03-16-2007 09:13 :: vfone :: Replies: **9** :: Views: **4722**

how to convert **phase** **noise** to jitter(**rms**)?

Analog Circuit Design :: 02-15-2007 12:57 :: pillar_chen :: Replies: **4** :: Views: **1383**

I don't think you are able to generate an eye diagram from a clock signal (1010). The eye diagram is generated from a PRBS signal such as PRBS7 or PRBS23, etc..
For a clock signal the important parameters are rise/fall time, **rms** jitter (**phase** **noise**), Vout_pp vs. Frequency.

Analog Integrated Circuit (IC) Design, Layout and Fabrication :: 10-13-2006 06:15 :: krashkealoha :: Replies: **3** :: Views: **1843**

Longly we believe:
ΔTabs,**rms**=(2π/To)? *lim∑Φ?n,j / N (1)
then in Razavi's book IC in optical circuits' P28, it will becomes:
ΔTabs,**rms**=(2π/To)? lim∫Φ?n(t)dt / T (2)
then by Parceval's law: ΔTabs,**rms**= (2π/To)?∫SΦ(f)df ; (3)
Therefore, we (...)

RF, Microwave, Antennas and Optics :: 11-05-2005 16:30 :: neoflash :: Replies: **2** :: Views: **1545**

EVM (%) = 1.74 * **rms** **phase**_error (°)

RF, Microwave, Antennas and Optics :: 08-16-2005 20:52 :: vfone :: Replies: **12** :: Views: **11215**

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