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.
charge pump phase noise measurement
as far as i know, it include the phase noise in each module(divider, charge pump, vco and etc) by simple addition. but this document just indicate that we should include the phase noise of each module, but how can i got the phase noise of divider and charge...
ads phase noise simulation
I read this before.
that why i need to know how can i simulate the phase noise of the divider and charge pump?
without phase noise of divider and charge pump,
i can not estimate the whole pll phase noise.......
charge pump noise simulation
How to simulate phase noise of the divider and charge pump by spectre?
I try to simulate it with similar setting as phase noise simulation of VCO.
But the result look like incorrect.
Anyone know how to simulate it?
How can I determine the motional C of the crystal model.
From the crystal vendor spec. i can not find any motional C or motional L value.
How do I build the crystal model for my simulation?
Thx
I use a piecewise linear approximation to achieve logarithmic function.
When I simulate the RSSI transfer curve, the dynamic range is very low.
I think it is due to the poor performance of Full wave rectifier.
How can I know that the full wave rectifier(FWR) is good enough?
according to the...
qpss spectre
For RF analyses in Spectre
pss, qpss, pac,psp ... and etc.
As I am not a RF engineer.
what is the use of those analysis?
any reference I know study such that I know what are they?
thx
Any sigma delta modulator example in circuit level.
I read the paper IEEE Transaction on Instrumentation and Measurement VOL 40, No3, JUNE 1991.
a three stage sigma delta moduletor is implementated by accumulator.
I can read the similar structure in some other paper or thesis.
but I do not have...
I just add some on chip decoupling capacitor for the 8-bit MCU.
but I just wonder whether or not it will have any side effect.
as far as I know, the side effect are:
1) some leakage due to the MOS cap
2) the power noise may coupling from the decap to analog circuit if adding improperly.
Added...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
