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Re: what is a field?
a field actually ONLY means a set of pre-defined values, those values in the field satisfying predefined rules. thus to understand a field, u need to know its ranges, and its rule.
when we pick up a value from a field, we said that thsis value is in the field.
scalar...
Hi, Guys:
Thank you for all your helpful replies...
I use a 2^22 points of FFT to get the power spectrum I needed. I believe my approach makes sense. Because due to the winder effect, the resultion is decided by the window length. This is explained in Sanjit's book "digital signal...
get a power from fft
Hello:
I have struggled for days on this problem:
I have a sequency of time points. Assume they are correponding to the zero-cross time points of a sine-like
waveform. From this wave, I can approximately re-construct some sample points by assuming a sine wave connecting...
over-sampling spread the noise, the loop forms a high-pass filter for noise, then a decimation filter or a low-pass filter gets rid of high-frequency noise.
Re: designing 60MHz PLL with integrated loop filter??
i am same curious on the value of your computeed caps and ressitors, could you post them for sharing? and what is the area you estimate to use for cap and resistor? thanks
sonsivri
this is hard, will you design a board-level circuit or an integrated circuit? if it is board-lveel, i donot think there is a practical way of doing that.
Yes, I think this make sense. Because in this case the
PFD actually add some delay into the equation.
In general linear model, we usually assume that
the feedback happens in a very small instant and
ignore any delay effect. This assumption hold true
when you are useing laplace model because...
catch short pulse
I am wondering whether it is practical to catch a
1 ns pulse, no matter by what means? The method
should be able to tell the time length of a
pulse...
For example, an integrator, it can reasonablly tell me that I catch a 1 us or 2 uS pulse by checking its
output.
I am...
Hi, Skyhigh:
You are right, that the both methods are basically same. But I just feel that the a series ressitor won't make much difference, because here it is the slew current which decide the risetime in my case, thus a resistor will not
affest this slew current. That is what I think.
I also...
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