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Recent content by eblue

  1. E

    negative resistance oscillator and feedback oscillator

    Hi, I think these theories are general. So you can use them in any freq. range. The feedback is more offen in schols, but in my opinion negative resistance is more practical. Regrads. eblue
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    interfaceing nokia handphone to microcontroller

    nokia rs232 circuit Hi, I bought Mbus/Fbus cable several years ago for 5 EUR. Before making your own try to find one for your Nokia. It has built in level shifter that takes current (power) from the computer's RS-232 port. The Mbus protocol alows only 9600 bit/s. If you use Fbus you can set...
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    p-file created by Matlab --> How to see the code ?

    Hi, in Matlab documentation they say to use this p-file to hide the algorithms in original m-file. You could look a litle bit more to see if there is some info on p-file format. Without the format you can't expect to see what is inside. I am not optimistic on this. regards. eblue
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    What is the best layout editor?

    Hi, Vitruoso/Virtuoso XL is my tool for layout. It is a part of Cadence design environment . Regards. eblue
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    Guess what this circuit is for !!! :)

    Hi, 1. Remote control of big consumer. 2. Audio processing circuit 3. Children toy bye, bye
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    what is your favor drawing software?

    latex block diagram software Hi, even Word or Excel could help you to do the block diagrams. Did you try them? For schematic I prefere EDA like OrCAD or LTSpice (free). My waveform favorite is MATLAB. Regards. eblue
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    Who have some lectures about <<cmos analog IC>>

    Re: Who have some lectures about <<cmos analog IC>& Phillip E. Allen lectures on CMOS analog IC design https://www.aicdesign.org/ regards, eblue
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    How to prove these binomial coefficients?

    Re: Binomial Coefficients It is impossible to prove. Left side is n^k / k^k, and right side is n^k / k! , double check the source.
  9. E

    fundamental & overtone crystal

    Fundamental mode is basic mode of oscillation. It's freq. is 1*f. Overtone modes are roughly odd multiplies of this frequency 3*f, 5*f, ... Find more at: https://www.corningfrequency.com/library.htm Regards, eblue
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    [SOLVED] What is the difference between a crystal and an oscillator

    difference between oscillator and crystal Oscillator is a circuit that oscillates. There are many types of it. We can say that crystal (usualy quartz crystal) is used to make the oscillations of oscillator very accurate. This oscillators are called crystal oscillators. Hope this helps. eblue
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    using PSoc temerature sensor

    Hi. In Cypress PSoC there is temp. sensor. Someone used it? What is the accuracy? Thanks. eblue
  12. E

    wireless optical communication using link lan

    What would you do when it rains or snows, or when there is a fog?
  13. E

    Wideband digital beamforming at subarray level

    Hi berraco, Look for ESPRIT and MUSIC super resolution algorithms. They are usualy used for that kind of processing.
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    poly1-poly2 cap vs metal-poly cap

    Go on www.mosis.org. There you will find TSMC technology data.
  15. E

    "analog layout automation"

    Hi whizking, What kind of job do you have?
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