part number	P1dB, dBm @ 1 GHz	Gp, dB @ 1 GHz	package	outline	data sheet
MSA-0504	18.0 typ 16.0 min @ 80 mA	7.0 typ 6.0 min	145 mil plastic		pdf
MSA-0505	18.0 typ 16.0 min @ 80 mA	7.0 typ 6.0 min	145 mil plastic		pdf
MSA-0520	23.0 typ 21.0 min @ 165 mA	8.5 typ 7.5 min	200 mil BeO disc		pdf
MSA-0500 (obsolete)	23.0 typ @ 165 mA	9.0 typ	chip		pdf

packages: 00 04 05 20

* MSA-05 MODEL
* Combine with package model to complete

* DIE MODEL
Xa05 DIEOUT  DIEIN   DIEGND msa05
.ENDS

* chip model
.SUBCKT msa05   DIEOUT  DIEIN   DIEGND
RF      DIEIN   13      210     (TC1=-0.8E-3)
RE      Q2E     DIEGND  QE2     (TC1=-0.8E-3)
RB      DIEIN   DIEGND  800     (TC1=-0.8E-3)
RBIAS   Q1E     DIEGND  50      (TC1=-0.8E-3)
RDC     DIEIN   DIEOUT  2000    (TC1=-0.8E-3)
CF      DIEIN   DIEOUT  0.26PF
CP1     Q1E     DIEOUT  0.274PF
CP2     Q2E     DIEOUT  0.150PF
CP3     DIEGND  DIEOUT  0.496PF
CFBL    14      DIEOUT  45PF
LF      13      14      0.35NH
Xa05Q1  DIEOUT  DIEIN   Q1E     a05Q1
Xa05Q2  DIEOUT  Q1E     Q2E     a05Q2
.ENDS

* Q1 distributed base model
.SUBCKT a05Q1   Q1C     Q1B     Q1E
RB1     Q1B     11     1.26    (TC1=0.8E-3)
RB2     11      12     2.15    (TC1=1.2E-3)
RB3     12      B1     1.56    (TC1=1.8E-3)
RC      C1      Q1C    5.87    (TC1=0.6E-3)
RE      E1      13     0.14    (TC1=0.6E-3)
RBAL    13      Q1E    2.75    (TC1=0.6E-3)
Q1      C1      B1     E1      QPWR    720
DCD1    Q1B     C1     DMOD    1267
DCD2    11      C1     DMOD    2380
DCD3    12      C1     DMOD    612
DCD4    13      C1     DMOD    1717
.ENDS

* Q2 distributed base model
.SUBCKT a05Q2   Q2C     Q2B     Q2E
RB1     Q2B     21     0.91    (TC1=0.8E-3)
RB2     21      22     1.07    (TC1=1.2E-3)
RB3     22      B2     0.78    (TC1=1.8E-3)
RC      C2      Q2C    3       (TC1=0.6E-3)
RE      E2      23     0.07    (TC1=0.6E-3)
RBAL    23      Q2E    1.38    (TC1=0.6E-3)
Q1      C2      B2     E2      QPWR    1440
DCD1    Q2B     C2     DMOD    2354
DCD2    21      C2     DMOD    4760
DCD3    22      C2     DMOD    1224
DCD4    23      C2     DMOD    1717
.ENDS

.MODEL  DMOD    D(IS=1E-25, CJO=2.45E-16, VJ=.76,
+               M=.53, BV=45, IBV=1E-9)
.MODEL  QPWR    NPN (BF=75, BR=5, IS=1.65E-18,
+               VA=30, TF=14PS, CJE=1.8E-15, VJE=1.01,
+               MJE=0.6, PTF=50, XTB=1.818, VTF=6, 
+               ITF=3E-4, IKF=1.0E-4, XTF=4, NF=1.03, 
+               ISE=5E-15, NE=2.5)

MSA-0500		package 00 model
MSA-0504		package 04 model
MSA-0505		package 05 model
MSA-0520		package 20 model

file name	description
a0500IB.s2p	MSA-0500 s parameters at 165 mA	view
a0504i80.s2p	MSA-0504 s parameters at 80 mA	view
a0505i80.s2p	MSA-0505 s at 80 mA	view
a0520IB.s2p	MSA-0520 s parameters at 165 mA	view

General Information about Amplifier ICs
Information about MSA Series IC Amplifiers
Assembly Information