Hi, I am searching for spice models for MRF545 and MRF544. Seems they are at least in the intusoft RF devices library. But I do not have ICAP (I use Topspice). Anyone have these models and could give them to me? Best Regards Frank Moe
Does anyone have spice models for MRF545/MRF544? Maybe from the Intusoft ICAP4 package?
Feb 10, 2005
4 Replies
Hello Frank, you should try a search with Google with the following text.
mrf545 spice
Use the third link. Ok it's dead but click on "cache" there. They have kept the data.
Best Regards, Helmut
"Frank Moe" schrieb im Newsbeitrag news: snipped-for-privacy@posting.google.com...
Hi Helmut,
thanks for the info, but I had found that before. This model uses heavy caps in the subcircuit around the transistor model, so I think it has been tweaked only for one single bias point. As I will have to amplify also DC over a wide voltage range I might need a better matched model...
Anyone here have the Intusoft library? Frank
..SUBCKT MRF545 1 2 3 LC 1 4 0.905E-9 LB 2 6 0.237E-9 LE 5 3 2.789E-9 CC 4 3 1.068E-12 CB 4 6 0.548E-12 Q1 4 6 5 QR96 ..MODEL QR96 PNP ( BF=77 VAF=40 VAR=5.6 RC=1.06 RB=1.10
+RE=0.592 IKF=2.80E-01 ISE=3.60E-14 TF=4.747E-11 +TR=3.42E-09 ITF=6.65E-02 VTF=2.31E+01 CJC=4.646E-12 +CJE=63.84E-12 XTI=3.0 NE=1.5 ISC=1.20E-14 EG=1.11 PTF=25 +XTB=1.5 BR=2.00 VJC=0.75 VJE=0.75 IS=4.00E-15 +MJC=0.33 MJE=0.33 XTF=4.0 IKR=2.80E-01 KF=1.0E-15 +NC=1.7 FC=0.50 RBM=0.81 IRB=4.00E-02 XCJC=0.561 ) ..ENDSI assume you already have the datasheet s-parameters.
Thanks,
- Win
Winfried,
many thanks for your help! Is this the Intusoft model? Do you also have the 544 model?
I do not have s-parameters as I have no original data sheet. Only the datasheet of the substitutes from the other manufacturers... Frank
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