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Recent content by Chaitanya Varma D

  1. C

    SPI PIC18F458 interfacing. Problem with reading data...

    HI there, any help would be appreciated.. I am trying to read from the AD0831 ADC through the SPI inteface in proteus lite sim . It seems that I have set the correct flags and every thing but the ADC doesnot communiccate with the micocontroller at all. This is my configuration: SCK is RC3...
  2. C

    converting single supply to dual supply

    Here I can suggest you an IC which can convert positive supply to negative supply. It is LTC660. Data sheet @ http://cds.linear.com/docs/en/datasheet/660fa.pdf. The IC can source a max of 100mA, but in you case since its a motor, I shall cascade them so that I can get enough current.
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    [Moved]: SNR calcualtion for the filter LTSPICE.

    Hi, (Please find the data in the pdf file attached). I am simulating a filter in the LTSPICE. The input to the filter is the quantised and sampled version of the sine wave( i generated the wave from data in the MATLAB by my code and I gave the data set to the filter which is 2nd order butter...
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    [SOLVED] PCB design(2 layer) Topology

    Hi Barry, In my design the FPGA is not attached on to the board, but there is a module TINY TIF that i am programming now. Actually it has a board all alone with pins to interface to outside. Actually my idea is to mount the FPGA module on the board by the use of jumpers pins. (It replicates...
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    [SOLVED] PCB design(2 layer) Topology

    Hi, I am designing a circuit board for my project. I chose to use surface mounted devices and PCB is 2 layered. I have knowledge on the basic PCB design, but i need to know some topology(placement) related aspects of the circuit design. My circuit has both analog components(like ADC and DAC...
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    ADC AD7091R problem with inerfacing

    Hi every one, (please read ADC ADC7091R datasheet carefully before answering, please post an answer if you worked on the ADC). I am using ADC AD7091R for my project. I am interfacing it with a micro-controller. The power supply I have given to the AD7091R is +3.3V The power supply I have...
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