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Recent content by amin5659

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    Import chipscopes data to matlab

    thanks. how can i just import this hex data to MATLAB.? as you see there is sample window and sample buffer which i have to ignore. i dont know how...
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    Import chipscopes data to matlab

    hi every one. i want to log some data bus in chip_scope and import this data to matlab. with ascii exporting data bus, chip_scope gives txt file like this how can i take this hex datas from txt file with matlab and convert it to integer? thanks:?:
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    amplifier with 30vrms output

    thanks for reply. why +-84? this would be 60vrms... low enough for specified B.W... this is not an crucial factor for me can you suggest a PDF or book for such a purpose...?
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    amplifier with 30vrms output

    Hi. i need an amplifier circuit with gain 3 or above which is capable of producing 30V rms in its output. BW is from 0.1Hz to 100Khz. maximum output current is 425 mA and output impedance is 100ohm. input: sin wave with maximum amplitude of 10v rms. output: sin wave with maximum of 30V rms. can...
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    0.1hz to 1mhz signal generator

    hi you're right. so far i know =>for example, for generating 0.1 HZ sine wave via DAC do i have to use different reconstruction filter in compare with 1MHz sine. right? and if i just use fixed reconstruction filter(1Mhz LPF Filter) do i have to increase DAC's resolution for low frequency signal?
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    0.1hz to 1mhz signal generator

    hi every one. i want to build a 0.1 hz to 1mhz sin, triangular, pulse generator with 10vpp adjustable amplitude. for the first design i used a DAC for generating signal and then used a amplifier for signal conditioning. the problem is when generating low frequency signal, the signal is...
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    w5300 impedance matching

    hi all. I’m designing a pcb board with spartan-6 and w5300 TCP/IP module. in datasheet of w5300 say’s for better impedance matching you have to place 50ohm res and 0.1uf cap like the picture . I’m using HR911105A rj-45 connector with magnetic module. this connector uses 75ohm resistor and...
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    cmos to 5v or 10v conversion

    thanks klausST another important factor i forgot to mention is propagation delay. the propagation delay have to be under 20ns. do you think switch's can provide this condition?
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    cmos to 5v or 10v conversion

    hi all. I've a CMOS logic line(0 to 3.3v) and i want to scale this line to 0 to 10v or 0 to 5v. (user will choose the output voltage level). the width of the pulse's is about 200 ns and maximum rise and fall time allowed is about 100 ns :|. output impedance of this port must be 50 ohm. can you...
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    ISA To GPIB Convereter

    hi every one. i want to write an isa to gpib converter code in spartan6. in ISA side i've found some information about timing and .... but the gpib seems more complex and i didnt find timing and information that can help me to write the code. Can anyone give me detail info about GPIB...
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    [moved] appropriate algorithm for video encryption

    I think this is too easy! Actually i'm looking for an algorithm that is specific to the video encryption. AES works for me but i think it's too much! can i use this core to encrypt full bandwidth of 100Mbit Ethernet Data in spartan3? and is this algorithm works for video?(I mean is this a...
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    [moved] appropriate algorithm for video encryption

    hi every one. I wanna to encrypt stream full-HD video with FPGA. can anyone suggest me an efficient FPGA algorithm with easy or medium level of hardness? :-D
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    jfet buffering for oscilloscope

    because adc's D.R is about 0 to 2V.
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    jfet buffering for oscilloscope

    thanks. but what about DC shift? it seems if i want to shift the level, i have to use inverting follower.am i right?
  15. A

    jfet buffering for oscilloscope

    Yes but in my frequency range I couldnt find a good op amp which be appropriate for me

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