Does anyone have spice models for MRF545/MRF544? Maybe from

[Frank Moe]

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

 

[Helmut Sennewald]

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" <moesenpeter@gmx.de> schrieb im Newsbeitrag
news:1eb84d4a.0502101520.84537fb@posting.google.com...

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

 

[Frank Moe]

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

 

[Winfield Hill]

Frank Moe wrote...

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?

..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 )
..ENDS

I assume you already have the datasheet s-parameters.


--
Thanks,
- Win

 

[Frank Moe]

Winfield Hill <hill_a@t_rowland-dotties-harvard-dot.s-edu> wrote in message news:<cvacmj01j3k@drn.newsguy.com>...

Frank Moe wrote...

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?

.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 )
.ENDS

I assume you already have the datasheet s-parameters.

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