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Recent content by Joana

  1. J

    Can someone recomend me about DC/DC converter?

    Hi! I'm designing a board with both digital and analog supplies. for the digital supplies i need an isolated and regulalted DC/DC converter with 12v in and 3.3V out. my smile will grunt to those of you who would answering correctly:) Thanks! J.
  2. J

    Looking for DC/DC converter

    1 Device that has 4 supplies : +-12,+-5 Is anyone know such device? Thanks Jo.
  3. J

    Connecting FPGA's LVDS trasmiter to ethernet cable

    Thanks all I found an intersting articale about this issue https://focus.ti.com/lit/an/slyt163/slyt163.pdf
  4. J

    Connecting FPGA's LVDS trasmiter to ethernet cable

    Hi I'm connecting cyclone 2 lvds transmiter to 3 meters long ethernet cables(RJ45 connector), besides impedance matiching, sould i consider any other issue for this conections? Thanks Joana
  5. J

    Help needed in orcad spice

    Please Respond...I'v also need help on this issu.. Johana
  6. J

    channel array to pas through amplifier

    channel array to gain Hi all ! I have 128 channels, each channel output's a signals in the range of 10mV to 0.1V and from 0Hz to 1kHz, and I have to increase all of them by X100. My question is refer to all of you experienced folks: is there a device that acts as array of amps for this...
  7. J

    Some help withe amplifier classficition

    Hi all I dont understand what is the difference between 'Single-Ended' ,'Differential' and 'Pseudo-Differential' amplifiers.. Where can I find some materials/ articles about it? typical usage and schematics? thanks for the help:) Johana
  8. J

    Multiple channel sampling

    I'm designing a board and I have multiple analog channels witch I need to sample with the same A2D. So far, The only solution I thought of, is to use MUX and allocate a time slot to each channel and then sample it. before i'll start with these way, i want to ask if there is another way to deal...

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