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Recent content by Evanspronsen

  1. E

    Holes in a PCB printed on transparent paper

    Hello all, I have the following problem: When I make my own pcb. First i have to print the design to a transparent paper. There starts my problem. When I print the Gerber to a paper sheet. I have tiny holes in the black part of the design, special in ground plans. I have tryed different types...
  2. E

    why it always said this simple circuit floating in pspice?

    Re: why it always said this simple circuit floating in pspic maybe you have to at a 0v power supply to get it work. Goed luck.
  3. E

    SMPS transformer formula?

    transformer formulas Take a look at: **broken link removed** **broken link removed** good luck.
  4. E

    Bungard Favorit through hole plating tool

    Hello, I like to upgrade my pcb development tools with through hole plating. Chemical through hole plating is hard/impossible to do at home . So is mechanical through hole plating an option. Does someone has experience with this device?: www.bungard.com/seiten/p-favorit.htm Is it posible to...
  5. E

    How to make a SMPS with input 230-500VAC & output 24V/2A

    3842 smps You can use the viper from ST. you can buy it at Farnell. www.st.com/stonline/stappl/productcatalog/app?path=/comp/stcom/PcStComOnLineQuery.showresult&querytype=type=product$$view=table&querycriteria=RNP139=432.0 They have also design software for the viper...
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    250 MHz digital clock

    Hi Rfmw, Thanks for your reaction. Is it posible to design a 7th overtone Xtal oscillator where don't thave to tinker around to get it working correctly. The datasheet of the AD9481 says the max Jitter is 0.25 ps RMS
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    250 MHz digital clock

    Hello, Can some give me a hint how I can make a 250 Mhz stable digital clock. It is to clock a high speed ADC. Regards, Ernst
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    What are the blackfin processors?

    Re: Blackfin Processors The blackfin is a lowcost dsp processor. The analog site is good start: http://www.analog.com/processors/blackfin/overview/whyChooseBlackfin.html It also work with embedded linux. see: http://blackfin.uclinux.org/ They also have example schematic's at there site...
  9. E

    Connection of Spartan-3(XC3S1000) with ADSP-BF561

    Hope this help: **broken link removed**
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