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Recent content by alvays

  1. alvays

    Wireline High-Speed TX Pre-emphasis FIR Filter Response.

    Hi that's the sampling frequency or delay time. From FFT of power spectrum, no power for that point. you can get examples by check RZ and NRZ FFT
  2. alvays

    LDO- accuracy, stability, consumption

    HI, dick_freebird Your thread is helpful for me. But can you show me any further clue or some related papers for these two papers? I didn't find them.
  3. alvays

    if thermal noise exists while no currents in resistor

    thanks. I think the answer is yes if there is a resister in parallel with the capacitor. Though the integrated noise over the all bandwidth is determined by kT/C, but the instantaneous one, that is, the random noise should be there any time. alvays
  4. alvays

    A matlab design tool for two-stage amplifier by using invers

    Cool, I browsed your instructions just now. A very good automated tool for two-stage amplifier design.
  5. alvays

    How to increase the gain-BW of a two-stage op-amp?

    I don't know if this will work right, but according to my deduction, it seems like this: Av1 = gm1*ro1; Av2 = gm2*ro2, first pole is about: 1/(ro1*gm2*ro2*Cc) gm1, gm2 is the first and second stage transconductance ro1, ro2 is the first and second stage output resistance Cc is the miller...
  6. alvays

    if thermal noise exists while no currents in resistor

    Hi, all Will the thermal noise still exists or not? Alvays
  7. alvays

    I need a code to realize this function in verilog-a

    i didnt check the following, if it has problem please let me know but it seems like this; `include "disciplines.h" `include "constants.h module equation(vout,vin); output vout; input vin; electrical vout, vin; //define input, output analog begin V(vout) <+ 2*V(vin) * (1+3*pow(V(vin),2)...
  8. alvays

    How many metal layers is available at TSMC 180nm tech.?

    Hi, akbari That depends your request. It can be most as 8 I remeber. More layers more money.
  9. alvays

    current mirror matching

    AB BA ABAB Do you mean this? If just centroid Alvays
  10. alvays

    what does this circuit perform?

    Hi, urain If vin- and vref- are all low potential, then the source of input will be low. Only if they are still in saturation
  11. alvays

    what does this circuit perform?

    Hi, What's the use? variable Hysteresis?
  12. alvays

    QUESTION ON DELAY LOCKED LOOP

    That depends on your bandwidth.
  13. alvays

    How should I connect substrate of 1.2V and 3.3V?

    Brakchus: In chip core, different powersupply blocks can be enclosed with p diffusion of their own power
  14. alvays

    how to decide the first non-dominant pole?

    If there are only two widely seperated poles, you can decide the location of the non-dominant poles with the short-circuit time constant method and the location of the dominant poles with the zero-value time constant method. Sometimes, the dominant poles can be easily found. In this case, you...
  15. alvays

    VCO design -- NEGATIVE Kvco

    Whatever negative or positive, the only important thing is that the kvco vs control voltage is monotonic.

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