Hyperabrupt Tuning Varactors
SMV1232–SMV1237
Typical Capacitance Values
SMV1232
SMV1233
SMV1234
SMV1235
SMV1236
SMV1237
V
R
(V)
C (pF)
T
C (pF)
T
C (pF)
T
C (pF)
T
C (pF)
T
C (pF)
T
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
9.0
4.15
3.22
2.67
2.28
1.97
1.72
1.51
1.35
1.22
1.13
1.05
0.99
0.94
0.90
0.86
0.84
0.81
0.78
0.76
0.75
0.74
0.73
0.73
0.72
5.08
3.95
3.28
2.80
2.41
2.09
1.82
1.62
1.45
1.33
1.24
1.16
1.10
1.05
1.01
0.98
0.96
0.92
0.90
0.88
0.87
0.86
0.85
0.84
9.63
7.53
6.28
5.39
4.68
4.09
3.58
3.15
2.81
2.54
2.32
2.15
2.02
1.90
1.80
1.72
1.65
1.55
1.47
1.42
1.38
1.35
1.33
1.32
18.22
14.12
11.67
9.91
8.52
7.36
6.40
5.62
4.99
4.50
4.11
3.80
3.55
3.34
3.17
3.03
2.91
2.73
2.61
2.53
2.47
2.43
2.40
2.38
26.75
20.61
17.02
14.38
12.29
10.56
9.16
8.04
7.19
6.53
6.01
5.61
5.28
5.02
4.81
4.64
4.49
4.28
4.13
4.02
3.95
3.89
3.84
3.80
71.82
56.10
46.89
40.33
35.13
30.71
26.87
23.57
20.83
18.62
16.87
15.48
14.36
13.46
12.72
12.11
11.61
10.87
10.38
10.06
9.84
10.0
11.0
12.0
13.0
14.0
15.0
9.68
9.56
9.47
SPICE Model
Part
Number
C
(pF)
V
M
C
R
S
(Ω)
JO
J
P
PORT
P_anode
port = 1
(V)
1.7
1.7
2.3
8.0
8.0
10.0
(pF)
0.0
0.7
1.2
2.0
3.2
9.0
SMV1232
SMV1233
SMV1234
SMV1235
SMV1236
SMV1237
4.20
0.9
0.9
1.1
4.0
4.2
5.3
1.50
1.20
0.80
0.60
0.50
0.25
IND
LS
L = LS
DIODEM
4.12
Diode_Model
IS = 1.00e-14
RS = 0
N = 1
TT = 0
CJO = CJO
M = M
EG = 1.11
XTI = 3
KF =0
AF =1
8.75
16.13
21.63
66.16
RES
RS
R = RS
1. Values extracted from measured performance.
2. For package inductance (LS) refer to package type.
3. For more details refer to the “Varactor SPICE Models for RF VCO
Applications” Application Note.
CAP
CP
C = CP
FC = 0.5
BV = 0
IBV = 1e-3
ISR = 0
DIODE
Varactor_Diode
AREA = 1
NR = 2
IKF = 0
MODEL = Diode_Model
MODE = nonlinear
NBV = 1
IBVL = 0
NBVL = 1
TBV1 = 0
TNOM = 27
FFE = 1
PORT
P_Cathode
port = 2
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3
Specifications subject to change without notice. 6/99A
ALPHA [ ALPHA INDUSTRIES ]
