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Recent content by shanmathi

  1. S

    Second order sigma delta modulator

    please find attached the simulation logfile and netlist file
  2. S

    Second order sigma delta modulator

    It does operate with lower clock frequency. TIQ stands for Threshold Inverter Quantizer. It is a 1-bit comparator. what is SCE to AUX? I'm new to cadence. pls explain.
  3. S

    Second order sigma delta modulator

    Hi all, I have developed a second order sigma delta modulator. however, the output doesn't look as expected. For positive input cycle I get a series of short pulses and for negative input cycle the positive pulse is modulated. what might be the mistake? I have attached the output and schematic...
  4. S

    Couldn't plot dc gain in cadence

    Re: couldn't plot dc gain in cadence i need to supply a input bias of vdd/2. when i sweep the vdd the input bias is constant at the initial vdd value. i need both vdd and input bias to change value simultaneously. pls help.
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    Couldn't plot dc gain in cadence

    hi, I'm a beginner in cadence spectre. I would like to see the variation of dc gain with vdd. I have done a dc sweep for vdd and i have the dc gain expression saved. how do i plot dc gain for different values of vdd. any help would be much appreciated.
  6. S

    [SOLVED] interfacing 4*4 keypad with arm cortex m3 lpc 1343 proto board

    I'm trying to interface a 16*2 lcd display and 4*4 keypad with lpc 1343 board. I have successfully finished interfacing the lcd. but can't find the keypad.h header file to interface the keypad. I'm using lpcxpresso v7 IDE. i'm comfortable using keil uvision5 too. help with the keypad interfacing...

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