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Recent content by arm_learner

  1. A

    High Power for LED Display Board

    so, if there have a very large display, then there are few SMPSs will be used?
  2. A

    High Power for LED Display Board

    I would like to know that what is the current solution solving the high power needed for the Large Matrix LED Display Board? Thank you very much.
  3. A

    Baseband Processor in Mobile

    Hi, Any one can tell me that is there a baseband processor, PN is 554, from Suxplus? If so, May I have its datasheet? Thanks for help!
  4. A

    Basic C programming question

    Basic C Programming #define Z 1 #if Z A #else B #endif ******************** I want to know Z will select A or B? Thz!
  5. A

    Pull-up resistor value for I2C

    Hi bilgekaan, Because my I2C bus with gitch, I don't know it is caused by pull-up resistor or not. When I change to use small value, the noise seem reduced. Thz
  6. A

    Pull-up resistor value for I2C

    Hi, Could you teach me how to determine the pull-up resistor value for I2C Bus? Thz
  7. A

    Gitch problem on I2C clock pin

    Hi All, Any methods to solve the gitch problem which appear on I2C clock pin. Thz
  8. A

    How can I verify the gerber file in Power PCB?

    as title, thanks!
  9. A

    Question about interfering of traces

    Re: Routing trace skill It is a 2 layers PCB, ground planes on top and bottom layers. Thz
  10. A

    Question about interfering of traces

    Routing trace skill Hi All, When two traces is in perpendicular form but one trace on top layer and other on bottom layer. one trace is about 100kHz clock signal and other is data signal. Will they interfere with each other? Thz
  11. A

    Deciding the width of Trace

    trace width required for 200ma 2.8V and 1.8V @ 150-200mA How is the width enough for that application? Thanks
  12. A

    About Power Plane in double layers

    Got it~~ Thz
  13. A

    About Power Plane in double layers

    If you have to layout a double layer PCB, 1. Two Sides Copper Pour are Ground Plane. 2. Power and Ground Plane for each side copper pour. Which one is the best? Thanks
  14. A

    About Power Plane in double layers

    Hi All, Is it placing two ground copper pour in 2 layers PCB? Thanks
  15. A

    Layer for Power and Ground

    Hi, I would like to know that is it the best way of placing power signal in one layer? Don't mix it with ground layer or other signal layer? Thanks! :o
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