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Recent content by linkern

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    about LC ladder filter and activeRC filter

    lc filter simulator hi,LvM In the leapfrog design strategy.what's the relationship between the integrator's op's parameters(gain,bandwidth) and capacitor value to LC ladder's L ,C ,Rs & Rl. Is there any papers/books on it ? Thanks!
  2. L

    about LC ladder filter and activeRC filter

    lc ladder Hi,lvW It seems I am puzzled by some papers/books. I mean ,if I want to design a 7th LPF using leap frog approach ,the procedure should be like this: 1st: I draw a 7th LC ladder 2nd: change the LC ladder into flow diagram.The transformation from LC ladder filter to leapfrog 3rd...
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    about LC ladder filter and activeRC filter

    lc filter Hi,all I want design a 7th low pass filter use LC ladder method, then use signal flow to convert it into inverting intergrator and non-inverting intergrator format. I'm not very clear with the relationship about L & C value with the cut-off frequency.Also I want to realize the active...
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    How to implement VGA whose accruacy is smaller than 0.1dB?

    Re: How to implement VGA whose accruacy is smaller than 0.1d use cascaded fully differetial op there are lots papers describes about it . you can search it . good luck.
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    Who is your idole in Analog Design?

    hehe,I have a lot idol .. for they are all my God now... ..Bezard Razavi, his book bring me to analong world. ..P.R.Gray and R.G.Meyer,and P.E.Allen ,their books advaned me. ..T.H.Lee and A.A.Adibi ,their books/papers brings me to the RF world.
  6. L

    How to generate a start pulse in Hspice simulation?

    a problem about Hspice hi,all how to generate a start pulse in hspice simulation.. thanks..
  7. L

    A Question about Oscillator

    I have designed a current-control oscillator. But it doesn't work.I think the theory is very simple.but I can't figure the problem out..Could anyone help me? I posted the schmatics

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