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  3. Which noise does param 'sh' stand for in ADE noise summary...

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Which noise does param 'sh' stand for in ADE noise summary?

Raveesh
Raveesh over 12 years ago

Hi,

I am doing verification of an LDO and I am a beginner. I was doing Noise analysis using Cadence ADE and in the Noise summary printed, there is a param called 'sh' for the type of noise. I would like to know exactly which noise type does it refer to?

Requesting help from somebody who knows the answer.

 

Regards

Raveesh

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  • ShawnLogan
    ShawnLogan over 12 years ago

    Hi Raveesh,

    I did not see the noise parameter "sh"  in the list of noise parameters when I ran a noise analysis. It may be a shot noise parameter whose abbreviation is truncated. Perhaps you are using a different version. I am using IC6.1.5.500.11. The abbreviations for the various noise parameters may be found at:

     /wps/mypoc/cos?uri=deeplinkmin:ViewSolution;solutionNumber=11827226;searchHash=e4282bfb1a4768278f2d31ef00c2e5c7

    or as shown below.

    Shawn

     
    Noise Summary Example

    For a MOS transistor, the individual noise contributors are fn, id, rs and rd.

    -fn is the flicker noise

    -id is the drain-source resistance thermal noise

    -rs is the source parasitic thermal noise

    -rd is the drain parasitic resistance thermal noise

     

    For Bipolar transistor, the noise contributors are in rb, ib, rc, ic, fn, re,

    and bn.

    -rb is the base resistance thermal noise

    -ib is the base current shot noise

    -rc is the collector resistor thermal noise

    -ic is the collector current shot noise

    -fn is the flicker noise

    -re is the emitter resistor thermal noise

    -bn is the burst noise

    -itfz is forward transport current

    -ibe(A) Intrinisic B-E Junction Current

    -kfn is B-E flicker noise constant

    -afn is the B-E flicker niose exponent

    -bfn is the B-E flicker noise dependence

     

    For VBIC,  (please also see Solution 11603018 )

    - fn is the flicker noise between the node bi and ei.
    - fnp is the flicker noise between the node bx and bp.
    - fnx is the flicker noise between the node bx and ei.

     

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  • ShawnLogan
    ShawnLogan over 12 years ago

    Hi Raveesh,

    I did not see the noise parameter "sh"  in the list of noise parameters when I ran a noise analysis. It may be a shot noise parameter whose abbreviation is truncated. Perhaps you are using a different version. I am using IC6.1.5.500.11. The abbreviations for the various noise parameters may be found at:

     /wps/mypoc/cos?uri=deeplinkmin:ViewSolution;solutionNumber=11827226;searchHash=e4282bfb1a4768278f2d31ef00c2e5c7

    or as shown below.

    Shawn

     
    Noise Summary Example

    For a MOS transistor, the individual noise contributors are fn, id, rs and rd.

    -fn is the flicker noise

    -id is the drain-source resistance thermal noise

    -rs is the source parasitic thermal noise

    -rd is the drain parasitic resistance thermal noise

     

    For Bipolar transistor, the noise contributors are in rb, ib, rc, ic, fn, re,

    and bn.

    -rb is the base resistance thermal noise

    -ib is the base current shot noise

    -rc is the collector resistor thermal noise

    -ic is the collector current shot noise

    -fn is the flicker noise

    -re is the emitter resistor thermal noise

    -bn is the burst noise

    -itfz is forward transport current

    -ibe(A) Intrinisic B-E Junction Current

    -kfn is B-E flicker noise constant

    -afn is the B-E flicker niose exponent

    -bfn is the B-E flicker noise dependence

     

    For VBIC,  (please also see Solution 11603018 )

    - fn is the flicker noise between the node bi and ei.
    - fnp is the flicker noise between the node bx and bp.
    - fnx is the flicker noise between the node bx and ei.

     

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