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Recent content by nickoo

  1. N

    What is maximum output power realizeable with a CMOS power amplifier on chip?

    CMOS max power Very Agree with shaikhsarfraz !!
  2. N

    Where can download TSMC0.18 pdk?

    tsmc gpdk+download u can not download these files unless u have a TSMC custom account!! And these files is strictly distributed!!
  3. N

    what function do the five serial transistors act as ?

    :) in circuit option,here is just one MOS!! don't worry ,don't wonder!
  4. N

    I need help about PLL design steps, what should be known???

    Charge-pump proccess: 1.select VCO type and design 2.sim the VCO->get KVCO 3.design loop:(attention BW<<Win) _a.open loop-->max Phase Margin _b.close loop-->damping factor and natural freq(min ripple) 4.low-pass filter parameter is decided by step 3. 5.design charge-pump,pay attention the...
  5. N

    Binary weight current DAC mismatch

    A design example 12bit current DAC
  6. N

    VCO tuning range plotting

    Simple eg: .tran 0.1p 100n Sweep Vctrl 0.7 2.7 0.1 ~~~ .meas FreqVcoout open awaves to view FreqVco~Vctrl it work well GOOD LUCK
  7. N

    about bandgap voltage reference

    Nod to DenisMark
  8. N

    HspiceToolbox about eye-diagram

    there is one demo sp file for eye diagram in $hspice_instal_dir/demo
  9. N

    Help me design a 80dB opamp with 10uF capacitance load

    A OPAMP design Class AB+Floaded-casecode is ok It can push-pull high couple cap in audio application
  10. N

    help in converting passive resistor to active resistor

    it is very difficult to do this thing .because the resistor is vary with the terminal voltage of pmos/nmos
  11. N

    Looking for resources on designing a LVDS buffer

    LVDS buffers 1)pls confirm the LVDS spec 2)CM feedback OP is very critical 3)Frequency compensitio is important 4)inpedence matching
  12. N

    How to improve the psrr of a bandgap circuit?

    1)casecode structure (impractical for low supply) 2)big L 3)RC filter is not used widely 4)local supply is better stucture but need more area
  13. N

    [help] Design low ron power mosfet in standard CMOS?

    no way ,but big big big w/l mos ,you may be find the big big mos in chip that occupy all most 9/10 area in the whole chip
  14. N

    What is the circuit's name ?

    hi,yes,the name is ok,but the reason of using RZ and CC is compesation pole & zero
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