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Hello, I am trying to make almost the same simulation, finding eingen frequencies with FEM eigenmode simulation of just a single SRR. I want to do this, in order to compare the results of the simulation of a single SRR magnetically-excited by a microstrip line and measuring the resonant...
Hy moylando,
I am interested on this instability issue of SD modulators. I am having the same problem for a 2nd-order continuous-time modulator, however for higher amplitudes (-3dBFS). I am also using the same DC gain and constant time for both integrators. Anyone could provide some comments...
It's very useful to simulate in SIMULINK to get an idea of the amplitude and frequency of the signals in the different points of the modulator. You should specify correctly the simulation step and make that each block has the correct sample frequency. Also, if you want to see the fft of the...
Re: Maybe silly question about first-order sigma-delta modul
I've been designing also a 1st- order sigma-delta modulator but with switch capacitors technique. The maximum frequency is limited by the opamp you use int he integrator. In the Jhons & Martin Integrated circuit design book, says that...
Why don´t u try :
understanding sigma-delta data converters by Schreir & Temes.
I´ve read it, but i don´t have the electronical version. If you get it, please send me the link to download it.
741 opamp comparator
Opamps are not design for such applications. Use a comparator instead. They don´t have the same compensation techniques as opamps, so they are faster.
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