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Recent content by js0p

  1. J

    Buying ARM development board suggestions

    Thank you bob for your suggestion. I suppose you refered to this board **broken link removed** , which is very nice but it is too expensive for me :( I found this one in the Olimex website https://www.olimex.com/dev/lpc-e2468.html as maheshkuruganti suggested. It comes with a pre-loaded uC...
  2. J

    Low pice PIC Microcontrollers

    pic microcontroller sample order sri lanka Hi, I'm not sure if the Microchip samples policy has changed last months but it was possible to request 5 samples of 3 different chips (or something similar) for free. So, in that case, you only need to login with some different email accounts until...
  3. J

    Buying ARM development board suggestions

    futurlec lpc2368 Dear all, hi :D. I would like to purchase an ARM based development board but there are so many boards available that I don't know which one to choose, so I will appreciate any piece of advice. I want the board has USB, Ethernet and SD/MMC and also an embedded linux can run in...
  4. J

    Analog layout examples

    Hi everybody. Can anyone tell me any references (books, websites, etc) where there are analog layout examples (comparators, voltage references, ...)? Thanks in advance.
  5. J

    Substrate charge pump

    Thanks for reply. The Baker's book is really helpful. Any other references?
  6. J

    Best voltage reference in variable substrate voltage circuit

    build accurate voltage reference Hi, I'm working on a charge pump circuit design to make the substrate voltage level at negative values (-0.8 ~ -1.2 V). A level shifter, an accurate voltage reference and a comparator with hysteresis are used for the sake of make an stable substrate voltage...
  7. J

    How can I download the class video from standford Univ ?

    Maybe it can be downloaded at P2P networks :| Best regards!
  8. J

    Who usually does IC layout?

    Re: Who does IC layout? "Digital Integrated Circuits A Design Perspective" - Jan M.Rabaey is a good book. Also, "CMOS Circuit Design Layout and Simulation" - Baker, Li, Boyce is a great book about VLSI analog design. Best regards!
  9. J

    Substrate charge pump

    Hello. I need to design a substrate charge pump to generate a negative substrate bias. I'm newbie in analog design... Can anyone recommend any books or references? Thanks in advance.
  10. J

    Help please , to convert This ....

    A fasor has 2 explicit variables (amplitude and phase) and 1 implicit(frequency). So, a fasor is defined for a given frequency. In your case: Y=4.5cos(2π*1600t) It's clear that the frequency is 1600Hz, so its fasor will be defined for that frequency. Amplitude is 4.5. The phase has to be...
  11. J

    Laptop computer for oscillscope and function generator

    If your PC have not installed any instrumentation card, you can use just the soundcard. A very powerful and commonly used program is Virtins Sound Card MultiInstrument (you can download it at p2p networks). It can be used as function generator, oscilloscope, spectrum analyzer and more (in audio...
  12. J

    Substrate charge pump basic cell design

    substrate bias charge pump Hello. I need to design a substrate charge pump to generate a negative substrate bias. The picture shows a simple substrate pump basic cell proposed in the Baker Li "CMOS Circuit Design, Layout and Simulation". Can anyone tell me any formulas to design this...
  13. J

    Design Kit for Cadence

    Hello everybody. I've just installed IC5033 at RHEL3 and works fine! :D But now I need a design kit... Could someone share a design kit for Cadence? Any design kit that works in Cadence will be good for me. (If it's the AMS-C35B4C3 Design Kit it would be better). Anticipated and very...
  14. J

    Problem with Cadence IC5033 shortcuts

    keyboard shortcuts cadence It works! Thanks a lot! :D
  15. J

    Problem with Cadence IC5033 shortcuts

    cadence shortcuts Hello everybody I've just finished to install Cadence IC5033 on RHEL 3.0 AS and works fine. The only problem is that any shortcut is enabled. For example, if I use the Virtuoso schematic editor I cannot use shortcuts to add instances, move, delete, etc using only the...

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