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Recent content by bjwljh

  1. B

    who can give me this article

    (1)R. Schreier, “An Emprirical Study of Higher-Order Single-Bit Delta-Sigma Modulators”, IEEE Trans. Circuits Syst., vol. CAS-40, no. 8, pp. 461-466, August 1993. thanks
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    How to implement a second order sigma delta dac using fpga

    2nd order dac I have read the articles from xilinx about implement sigam delt dac using fpga,but it is only one order.Now I need to design a two order or higher order sigma delta dac. I implement the a second order imitating the structure of the article.But I am confused when I simulate it...
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    How to implement sigma detla modulation using FPGA

    I want to implement a sigma-delta based open-loop freqeuncy modulation. who can give me some artiles and examples about ? Thank you
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    vhdl source code about pcitarget

    vhdl source code about pcitarget
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    Fraction-N frequency divider

    I will need to implement the Fraction-N frequency divider using ALtera or xilinx FPGA.Can someone give me some vhdl source code and aritiles about Fraction-N frequency divider.I donot understant the principle until now. THX?
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