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Recent content by Ronnie

  1. Ronnie

    Capacitive sensor sensitivity

    Hi all, I am considering to use the following component in my design: IQS213A, however I didn't find in the datasheet parameters indicating how sensitive it is. Another IC that I reviewed is CAP1203 by microchip, this one includes some basic parameters indicating it's sensitivity such as...
  2. Ronnie

    HDMI high speed signal layout

    Thanks marce, but did you actually have a problem with such a board?
  3. Ronnie

    HDMI high speed signal layout

    Hi all, I have a question regarding HDMI layout: I have a HDMI board I need to layout, this board has just two connector: one connector is to my main board, and the other is a HDMI connector(i.e. this is a HDMI adapter board). In your professional opinion, if I don't match the lines to 100 ohms...
  4. Ronnie

    Photodiode Amplifier question

    hello, Can anyone explain the theory of operation of the attached circuit, I saw allot of application notes explaining that in this connection there is no voltage across the photo diode- only current, but if there is no voltage across the diode-what produces the current? Also my basic...
  5. Ronnie

    Biasing of OPAMP - a fix without needing to generate the -3v

    Re: Biasing of OPAMP you need to give more details of your application, why do you need -3v? what op amp are you using etc...
  6. Ronnie

    Question Regarding boost inductor selection

    Hello, Can anyone please explain what is the connection between boost switching frequancy and inductor value. why does low frequancy boosts requere larger inductor?
  7. Ronnie

    Lens for power LED question

    I thought about it but I would rather buy a lens, that will save me time on this project
  8. Ronnie

    Lens for power LED question

    Hello, I am looking for a lens to install on a power LED inteded for flash lightning for cmos camera(such as cree or luxeon). I found some lenses for this porpuse, but they are all too large (20mm diameter). Can anyone reccomend such a lens with smaller diameter (10mm~)?
  9. Ronnie

    Micron CMOS Image Sensor Question

    micron mt9d131 Hello, Does anyone have experience with micron MT9D131 image sensor? I am trying to operate it and have problems understanding how to do so.
  10. Ronnie

    CMOS image sensor question

    Hi, Can any one tell me-is it possible to design color CMOS camera that will have IR leds lightning?
  11. Ronnie

    Looking for info about i2c interfacing

    Re: i2c interfacing **broken link removed** This document explains it well, pay attention to START and STOP conditions on page 9, it will help you implement the protocol.
  12. Ronnie

    Question About Lens specification understanding

    Hello, I am currentlly designing a circuit with CMOS image sensor, and I need to find a suetable lens for my sensor. Does anybody have a link for application note for understanding lens specifications? For example what does the 'ELEMENT' parameter mean (such as 3G2P/1P/2P...)?
  13. Ronnie

    Which component has lower current consumption, MAX II or CoolRunner?

    coolrunner ii max ii Thanks nxtech, I have been reading some into their datasheets, and their timing performance seem to me to be not so great, for example MAXII the worst case pin to pin delay is about 7.5ns, am I not understanding this right, or does it mean that if I want to write data bus...
  14. Ronnie

    Which component has lower current consumption, MAX II or CoolRunner?

    Hi, I am currently working on a new design, and I am considering either MAXII by ALTERA or CoolRunnerII by Xilinx. The current consumption isue is very confusing to me, since I am new to these kind of components, and also because each vendor claims his component has the lowest current...
  15. Ronnie

    Camera luminance using IR LEDs

    Thank you AndrzejM, I did see a couple of App notes regarding current souce in visible light flash, some manufacturers suggest switching power supplies for this, does this seem necessary to you?

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