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Recent content by Rodres

  1. R

    need help choosing lcd graphic module

    Hello: check this: www.azdisplays.com/prod/moduleg.htm www.eio.com/lcdmanuf.htm
  2. R

    Looking for microspy microphone design

    Re: spy microphone ? Look at this site: **broken link removed** It's very good
  3. R

    Working of BJT & FET Transistors ?

    fet working Check this: www.csee.umbc.edu/courses/undergraduate/ CMPE413/Fall04/cpatel2/lectures/chap1_lect01_basics.pdf Linear Amplifier Basics **broken link removed** Digital Circuits: Inverter Basics **broken link removed** and basically revise the main page where you find interesting...
  4. R

    Where should I start learning CMOS?

    Re: CMOS I think this is a good book but it is not focused toward the design of microelectronic circuits and doesn't explain the techniques that actually are being used. However, the new edition (fifth edition) is very good and explain everything about the design of IC's. Analysis and design...
  5. R

    USB Host controllers Help

    O.k. thanks. I saw some of philips microcontrollers and the SL811HS. I read in some paper this about it: "The host/slave functionality provides support for both full and low speed devices in host mode and the SL811HS/T switches automatically to slave mode when a connection to a USB host is...
  6. R

    PMOS and NMOS folded cascode?

    However, the designer usually prefer a folded cascode because it allow to implement a lower power supply even when the output swing still good (but is the technology of the transistor mainly that allows to lower porwer supply because the threshold voltage goes down).
  7. R

    PMOS and NMOS folded cascode?

    An input folded cascode has a better output swing but it has a lower bandwith, larger power consumption, bigger IC area and lower gain than a NMOS telescopic cascode. This you can find it in the book "Análisis and desig of analog integrated circuits" by Gray and Meyer and ...
  8. R

    firmware explanation, please help

    So, is the firmware kind of description hardware by the software?
  9. R

    Whats the benefit of the rail to rail of opamp?

    Re: rail to rail This is de document. I hope it is useful.
  10. R

    Whats the benefit of the rail to rail of opamp?

    Re: rail to rail Hello I think that you can use a charge pump to improve your desing. Using this technique you can provides the local supply voltage for the input differential pair, so the input signal can swing between the rails (rail to rail). I have a paper that explain this technique and...
  11. R

    what is the windows API for USB? please help

    Hello: I'm trying to control a device from the pc using C++ and USB protocol. Could anyone tell me what is the windows API for USB?. I'll be grateful for your information. Thanks
  12. R

    USB Host controllers Help

    O.k but this IC doesn't support the USB host mode. I need a controller that support Host/Device modes. Which could I use? Thanks
  13. R

    USB Host controllers Help

    Hello: I'm working in a proyect and I need to use an USB Host controller. I need to conect it into a ucontroller but I have to use the minimum number of pines to conect them. Could somebody tell me which is the best controller in the market (cypress or philips or which)?. Is better to use an...
  14. R

    Documents about implementing USB based devices for beginners

    Re: USB beginner could somebody tell me which is the osi model for USB?. If someone has information about please share it.
  15. R

    firmware explanation, please help

    firmware explanation what does firmware mean? Please help. Thanks :)

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