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Lt spice: Is there a Freq transfer function (table: frequency, transfer, phase)

I use Lt spice.

I want to design an inputfilter for a circuit of which I have:

- the transfer function (table: frequency, transfer, phase)

- the input impedance as function of frequency (table: frequency, transfer, phase)

What function can I use in LtSpice to import these tables into the simulation. I cannot find a function for it. If it is not possible with LtSpice is there a alternative for LtSpice which can do this. If needed I can spend up to a few hundred dollars.

I can understand that it is only possible to simulate ac transfer. That is ok. I am interested mainly in simulating the ac transfer function of this circuit including the inputfilter.

Thanks, Ronald

Reply to
Ronald Buining
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"Ronald Buining" schrieb im Newsbeitrag news:47bd375b$0$14356$ snipped-for-privacy@news.xsall.nl...

Hello Ronald,

You can either use the classic E- and G-sources with Freq-tables and PSPICE syntax or you an use the B-sources from LTspice.

Bv-source:

V=V(1,0) MAG FREQ=(1e6, 0.893, -26.7) (2e6, 0.705, -45.2) (5e6,

0.37, -68.3) (10e6, 0.195, -78.7)

Bi-source I=V(1,0) MAG FREQ=(1e6, 0.893, -26.7) (2e6, 0.705, -45.2) (5e6,

0.37, -68.3) (10e6, 0.195, -78.7)

If you send me your email address, I will send you an example with E and B sources. You can download this example also from the LTspice Yahoo group.

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Files > Tut > freq_table_E_B_1.asc

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Best regards, Helmut

Reply to
Helmut Sennewald

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