AT-31625 Typical Large Signal Impedances
V
CE
= 4.8 V, I
CQ
= 5 mA, P
out
= +28.0 dBm
Γ
source
Freq.
MHz
Mag.
Ang.
800
825
850
875
900
925
950
975
1000
0.661
0.679
0.697
0.712
0.727
0.740
0.754
0.767
0.777
-149.0
-150.6
-152.4
-154.2
-155.8
-157.5
-159.0
-160.4
-162.1
Γ
Mag.
0.382
0.394
0.403
0.412
0.422
0.426
0.432
0.437
0.438
load
Ccb (pF)
5.5
5.0
4.5
Ang.
-171.3
-172.8
-174.6
-176.5
-179.0
179.3
177.2
174.9
172.5
4.0
3.5
3.0
2.5
2.0
0
2
4
6
8
10
Vcb (V)
Figure 8. Collector-Base Capacitance
vs. Collector-Base Voltage (DC Test).
SPICE Model Parameters
Die Model
CPad
C
CPad
B
CPad
Lb1
B
0.2
Ω
Lb2
Rb2
B
E1
C
E2
Cce
Lc1
C
Packaged Model
Cbc
Die
Die Area = 1.2
CPad = 0.43 pF
Label
BF
IKF
ISE
NE
VAF
NF
TF
XTF
VTF
ITF
PTF
XTB
BR
IKR
ISC
NC
VAR
NR
Value
150
299.9
9.9E-11
2.399
33.16
0.9935
1.6E-11
0.006656
0.02785
0.001
23
0
54.61
81
8.7E-13
1.587
1.511
0.9886
Cbe
E1
Label
TR
EG
IS
XTI
CJC
VJC
MJC
XCJC
FC
CJE
VJE
MJE
RB
IRB
RBM
RE
RC
Value
1E-9
1.11
3.598E-15
3
1.4E-12
0.4776
0.2508
0.001
0.999
5.06E-12
1.148
0.5965
0.752
0
0.01
2.488
1.288
E2
0.2
Ω
Label
Cbc
Cbe
Cce
Lb1
Lb2
Rb2
Le1
Lc1
Value
0.009 pF
1.20 pF
0.48 pF
1.53 nH
0.045 nH
0.1
Ω
0.38 nH
0.47 nH
Le1
E
4-46
AGILENT [ AGILENT TECHNOLOGIES, LTD. ]
