Hello!!!
I am trying to verify fT of 2N3904 (Fairchild Semi) using PSpice, [1] testbench.jpg shows my testbench ckt (analysis directives: .AC LIN 1000 1 500Meg), [2] result.jpg shows my simulation result and [3] datasheet.pdf
Datasheet says fT=300MHz but my simulation result says fT=83.333MHz
As I know fT is a frequency at which small-signal currect gain, |ic/ib|=1
My questions are:
[1] do you see any problem with my testbench?
[2] what does f (=100MHz, 1.0MHz, 10Hz to 15.7KHz) mean in the datasheet's page #2 under small signal characteristics?
your response would be highly appreciated,
I am trying to verify fT of 2N3904 (Fairchild Semi) using PSpice, [1] testbench.jpg shows my testbench ckt (analysis directives: .AC LIN 1000 1 500Meg), [2] result.jpg shows my simulation result and [3] datasheet.pdf
Datasheet says fT=300MHz but my simulation result says fT=83.333MHz
As I know fT is a frequency at which small-signal currect gain, |ic/ib|=1
My questions are:
[1] do you see any problem with my testbench?
[2] what does f (=100MHz, 1.0MHz, 10Hz to 15.7KHz) mean in the datasheet's page #2 under small signal characteristics?
your response would be highly appreciated,
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