UPA862TD
UPA862TD NONLINEAR MODEL
BJT NONLINEAR MODEL PARAMETERS(1)
Parameters
Q1
Q2
Parameters
Q1
Q2
NE685
NE851
NE685
NE851
IS
BF
7.0e-16
109
1
137e-18
166
MJC
XCJC
CJS
VJS
MJS
FC
0.34
0.14
0.5
0
0.5
NF
0.9871
20.4
0
VAF
IKF
ISE
NE
15
0.75
0.75
0
0.19
7.90e-13
2.19
1
50
0
80.4e-15
2.4
0.1
0.55
18e-12
0.1
2
TF
2.0e-12
BR
28.7
XTF
VTF
ITF
6
NR
1.08
12.4
infinity
0
0.9889
2.7
3
VAR
IKR
ISC
NC
0.005
0.03
0
0.021
532e-18
1.28
PTF
TR
0
1.0e-9
1.0e-9
1.11
0
2
EG
1.11
0
RE
1.3
0.45
XTB
XTI
RB
5
4
3
3
RBM
IRB
RC
3
1
KF (2)
AF (2)
0
0
0.005
10
0
1
1
1.7
CJE
VJE
MJE
CJC
VJC
0.4e-12
0.81
0.5
2.4e-12
0.87
0.34
0.18e-12
0.75
0.65e-12
0.52
(1) Gummel-Poon Model
(2) AF and KF are 1/f noise parameters and are bias dependant.
The appropriate values for the 1/f noise parameters (AF and KF)
shall be chosen from the table below, according to the desired
current range.
IC = 5 mA
54.38e-12
2.071
IC =10 mA
997.6e-12
2.375
IC = 15 mA
500.2e-12
2.288
MODEL RANGE
Frequency: 0.1 to 3.0 GHz
KF
AF
Bias:
Date:
VCE =0.5 V to 2.5 V, IC = 1 mA to 20 mA
08/03
IC = 5 mA
4.547e-15
1.4
IC =10 mA
855e-12
2.551
IC = 15 mA
1.73e-9
2.626
KF
AF
For a better understanding on AF and KF parameters, please refer to AN1026.
CEL [ CALIFORNIA EASTERN LABS ]
