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Recent content by james.smith

  1. J

    LED driver circuit using microcontroller

    Hi, That seems like a reasonable approach. You may need to experiment a bit until you find something that works. Good luck! James
  2. J

    distinguish btwn signals of same frequency and different data

    Hi there, Signals at *exactly* the same frequency would be very difficult to distinguish from each other. The only way that I could think of to do it would be some sort of time-division multiplexing. See the following Wiki page to get you started...
  3. J

    (DC) Wafer probing for dummies?

    Hi all, A quick search of this forum yields only this thread: https://www.edaboard.com/threads/78463/ I am a masters' student who has been busy with design and simulation work up to now, but I have to (soon) measure my IC, a fairly simple transistor arrangement. My professor is overseas for...
  4. J

    Common-emitter biasing on an IC

    Hi Dick, Thanks for the suggestion. Could you perhaps point me to a diagram of what such a circuit would look like? I understand what the bias voltages / currents need to be. The equations are in any microelectronics textbook... What confuses me is that most texts just put a "V_BIAS" sort of...
  5. J

    [Moved] problem in saving data to eeprom

    Re: problem in saving data to eeprom Hey, I realise that this post is almost two years old but maybe if there's still someone looking for an answer. If you look at the datasheet of that EEPROM, http://www.atmel.com/Images/doc0180.pdf on p. 5 it describes a write cycle time. After you write to...
  6. J

    Common-emitter biasing on an IC

    Hi all, New here, recently discovered the resource. I have a question about biasing a common-emitter amplifier on-chip. I've done a good few audio amplifiers with op-amps or discrete transistors, and there a four-resistor network works well. However, I've now started working with Cadence for...

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