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  1. B

    How to find a paper on EDAboard now?

    long time ago, when you need some paper, u can post the title here, lots of people will help u to find them, then post here, but now ,when I need some ones, where can I get them? thanks!
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    Need help in designing a PLL from the beginning

    help me about PLL! right now, today, from now on , I am back to design IC again, The first work is to design a PLL, can someone ,or maybe everyone to give me some advice to how to do this chanllenging job, from the beginning to the end! thanks a lot!
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    matching network between the pre amplifier and the PA

    how to design the matching network between the pre amplifier and the PA in the system of GSM? thanks!
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    How to design a mixer layout to achieve better performance?

    how to design a mixer layout to achieve better performance!
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    I need help designing a quadrature up mixer

    the up mixer! who used to design a quadrature up mixer, help me !
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    How to reach the AGC of gain from 0~30dB ?

    RF gain! how to reach the AGC of gain from 0~30dB at the Frequency about 2G! thanks!
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    0 coefficient temp current

    how to design 0 coefficient temp current
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    how to design a Gm with good linearity!

    how to design a Gm with good linearity such as -60dB when the input differential signal is about 1vpp ??
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    how to understand the quasi-differential pairs

    how to understand the quasi-differential pairs which can improve the linearity?
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    upconverter in transmitter

    i am going to design a quadrature up conversion mixer in the Tx, the LO is 2G and the IF is 5M need the output is 2.005G help me !
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    upconverter in transmitter

    I am doing a quadrature mixer too, need your help! thanks!
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    help the up_conversion mixer

    pardon,can you give a example, I am the first time to do the Rf circuit, sorry!
  13. B

    help the up_conversion mixer

    cadence specRF the IF range from the small signal to large signal, and i want to simulation the characteristic of the quadrature mixer as much as possilble! thanks!
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    help the up_conversion mixer

    and how to simulate the characteristic of the quadrature mixer like the conversion gain , IP3, and so on ! thanks!
  15. B

    help the up_conversion mixer

    i am confused that what is the correct output wave of the quadrature mixer and how to simulate the characteristic of the quadrature mixer like the conversion gain , IP3, and so on ! thanks!
  16. B

    help the up_conversion mixer

    i am sorry that if the LO is 4G , the IF is 20M, so tell me how to add a filter?? again, do you know what is the quadrature mixer?
  17. B

    help the up_conversion mixer

    all the devices is ideal ,so there is no mismatch, to a quadrature mixer, so? do you know what is the quadrature mixer??
  18. B

    help the up_conversion mixer

    when i design a quadrature up_conversion mixer the out wave of (outp-outm) is just like this who can tell me the reason?

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