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Recent content by linuxwinner

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    flexible baseband interface

    Some RFICs are equipped with flexible baseband interface. Does anyone know what it is? Thanks!
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    question : tuning for active RC filter corner frequency

    rc circuit corner frequency The problem is that: Tuning circuit detects that master RC time constant is large. Large RC time constant means that the slave RC in active RC filter should be also large such that bandwidth of the filter should be narrow. But actually, the bandwidth of the filter...
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    Calculation within spectre netlist

    I don't think you can do it. Instead, please try "ocean" for your simulation.
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    Error in .pex.netlist "ERROR 52: In file "./inva_n

    Re: Error in .pex.netlist There is no gnd instance on your schematic.
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    question : tuning for active RC filter corner frequency

    rc frequency chart for germany Thanks for your intention! The situation is that RC variation can vary the corner frequency of active RC filter. For keeping track of the RC variation, tuning circuit is used.
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    question : tuning for active RC filter corner frequency

    corner frequency Hi folks, There is active RC filter with frequency tuning circuit. The tuning circuit results indicate that the RC time constant tends to be large. But the bandwidth of the filter tends to be wide. Is there any factor introducing the discrepancy? Thanks!
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    BJT current control device

    why bjt is known as current control devices I think it is wrong. The conduction mechanism in BJT is based on two current components, hole current and electron current. If there is no base current, there will be no collector current. The base current is used to change the resistance in base...
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    How to get user input in OCEAN?

    I think you can put it thru. text file.
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    Switch cap circuit , Noise analysis

    "Simulating Switched-Capacitor Filters with SpectreRF" by Ken Kundert in www.designers-guide.org
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    Blowup error when simulating switched-capacitor amplifier

    Re: Blowup error when simulating switched-capacitor amplifie The cap used is PiP cap. The error message is Error found by spectre at time = 21.6103ns during transient analysis 'tran'. Signal V(I15.C15.c1.hn1) = -1.05635GV exceeds the blowup limit for the quantity 'V'...
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    Blowup error when simulating switched-capacitor amplifier

    Hi all, There is blowup error when simulating switched-capacitor amplifier with spectre. However, it does not happen when I put ideal capacitors. Is there any idea?
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    Switcap or equivalent free simulator?

    switcap download I also want to find it recently. I just know now that the download has been suspended for a while. Does anyone know where we can find SWITCAP2?
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    How to model a 3 input NAND gate in HSPICE?

    Re: what's that mean? I think it is in-out voltage relationship in list form.

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