ALPHA SMV1142-011

Hyperabrupt Junction Tuning Varactors
SMV1142–SMV1148
Features
■ Frequency Linear Design
■ Low Series Resistance
■ Available in the SOD-323 and SC-79
Packages
■ Designed for High Volume Commercial
Applications
■ SPICE Models are Available
Description
The SMV1142–SMV1148 series of silicon hyperabrupt
junction varactor diodes are specifically designed with an
increasing gamma vs. voltage characteristic. This
characteristic will result in improved VCO frequency-voltage
linearity, in comparison to a conventional hyperabrupt
junction varactor. This family of varactors is characterized
for capacitance and resistance over temperature. SPICE
models are provided.
Single
SC-79
Absolute Maximum Ratings
Characteristic
Value
Reverse Voltage (VR)
12 V
Forward Current (IF)
20 mA
Power Dissipation (PD)
250 mW
Storage Temperature (TST)
-55°C to +150°C
Operating Temperature (TOP)
-55°C to +125°C
Single
SOD-323
♦ SMV1142-011
♦ SMV1143-011
♦ SMV1144-011
♦ SMV1145-079
♦ SMV1145-011
♦ SMV1146-011
♦ SMV1147-011
♦ SMV1148-011
LS = 0.7 nH
LS = 1.5 nH
♦ Available through distribution.
For other packages or configurations, please contact the factory.
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com
Specifications subject to change without notice. 1/01A
1
Hyperabrupt Junction Tuning Varactors
SMV1142–SMV1148
Electrical Specifications at 25°C
Part
Number
CT @ 1 V
(pF)
CT
@ 3V
(pF)
CT
@ 6V
(pF)
CT @ 1 V
CT @ 3 V
(Ratio)
CT @ 1 V
CT @ 6 V
(Ratio)
RS @ 3 V
500 MHz
Ω)
(Ω
Q
@ 3V
50 MHz
Min.
Max.
Typ.
Typ.
Min.
Max.
Min.
Max.
Max.
Typ.
SMV1142
8.20
10.00
5.8
3.5
1.50
1.65
2.43
2.93
0.70
800
SMV1143
11.60
14.20
8.2
4.9
1.50
1.65
2.45
2.95
0.65
600
SMV1144
14.65
17.95
10.4
6.1
1.50
1.65
2.46
2.96
0.65
500
SMV1145
25.50
31.20
18.1
10.6
1.50
1.65
2.50
3.00
0.60
300
SMV1146
37.80
46.20
26.4
15.5
1.50
1.65
2.50
3.00
0.60
200
SMV1147
54.60
66.70
38.6
22.6
1.50
1.65
2.50
3.00
0.55
150
SMV1148
62.00
76.00
44.1
25.2
1.50
1.65
2.50
3.00
0.50
150
Reverse Voltage VR (IR = 10 µA): 12 V
Reverse Current IR (VR = 9.6 V): 20 nA
Typical Performance Data
0.8
100.0
SMV1148
SMV1142
SMV1143
RS (Ω)
Capacitance (pF)
SMV1147
SMV1146
10.0
SMV1145
SMV1146
SMV1145
SMV1144
SMV1147
SMV1143
SMV1148
SMV1142
0.4
1.0
4.0
2.0
6.0
0
8.0
1
2
3
4
5
Reverse Voltage (V)
Reverse Voltage (V)
Capacitance vs. Reverse Voltage
Series Resistance vs. Reverse Voltage
@ 500 MHz
5
12
4
10
Percentage Change (%)
Percentage Change (%)
0
3
VR = 1 V
2
1
0
-1
-2
VR = 4 V
8
6
4
2
0
-2
-4
-6
-8
-3
-40
2
SMV1144
0.6
-20
0
20
40
60
80
-40
-20
0
20
40
60
80
Temperature (˚C)
Temperature (˚C)
Relative Capacitance Change
vs. Temperature
Relative Series Resistance Change
vs. Temperature
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com
Specifications subject to change without notice. 1/01A
Hyperabrupt Junction Tuning Varactors
SMV1142–SMV1148
Typical Capacitance Values
SMV1142
SMV1143
SMV1144
SMV1145
SMV1146
SMV1147
SMV1148
VR (V)
CT (pF)
CT (pF)
CT (pF)
CT (pF)
CT (pF)
CT (pF)
CT (pF)
0.0
13.38
18.99
24.01
41.81
61.13
89.52
104.71
0.5
10.70
15.18
19.18
33.38
48.97
71.44
83.27
1.0
9.10
12.90
16.30
28.35
41.43
60.65
70.48
1.5
7.98
11.30
14.28
24.82
36.26
53.07
61.48
2.0
7.12
10.08
12.73
22.11
32.30
47.27
54.56
2.5
6.42
9.08
11.46
19.91
29.08
42.55
48.92
3.0
5.83
8.24
10.40
18.06
26.37
38.58
44.13
3.5
5.32
7.51
9.48
16.45
24.01
35.12
39.97
4.0
4.86
6.87
8.66
15.02
21.92
32.06
36.29
4.5
4.45
6.29
7.93
13.73
20.04
29.31
32.99
5.0
4.09
5.76
7.26
12.57
18.34
26.81
30.03
5.5
3.75
5.29
6.66
11.53
16.81
24.57
27.43
6.0
3.46
4.87
6.13
10.60
15.45
22.58
25.22
6.5
3.21
4.51
5.68
9.81
14.30
20.89
23.43
7.0
3.00
4.22
5.31
9.17
13.36
19.52
22.06
7.5
2.84
3.99
5.02
8.66
12.62
18.43
21.01
8.0
2.72
3.82
4.80
8.29
12.07
17.63
20.22
8.5
2.63
3.69
4.63
7.99
11.63
16.98
19.61
9.0
2.56
3.58
4.50
7.76
11.30
16.50
19.12
9.5
2.50
3.50
4.40
7.58
11.03
16.10
18.72
10.0
2.45
3.43
4.31
7.43
10.81
15.78
18.38
10.5
2.41
3.37
4.24
7.30
10.62
15.50
18.11
11.0
2.36
3.31
4.15
7.15
10.40
15.18
17.87
11.5
2.35
3.28
4.15
7.10
10.33
15.08
17.65
12.0
2.32
3.25
4.08
7.02
10.21
14.90
17.43
SPICE Model
PORT
P_anode
port = 1
IND
LS
L = LS
RES
RS
R = RS
DIODE
Varactor_Diode
AREA = 1
MODEL = Diode_Model
MODE = nonlinear
CAP
CP
C = CP
PORT
P_Cathode
port = 2
DIODEM
Diode_Model
IS = 1.00e-14
RS = 0
N=1
TT = 0
CJO = CJO
M=M
VJ
EG = 1.11
XTI = 3
KF =0
AF =1
FC = 0.5
BV = 0
IBV = 1e-3
ISR = 0
NR = 2
IKF = 0
NBV = 1
IBVL = 0
NBVL = 1
TBV1 = 0
TNOM = 27
FFE = 1
Part
Number
CJO
(pF)
VJ
(V)
M
CP
(pF)
RS
Ω)
(Ω
SMV1142
13.38
2.20
1.0
0
0.70
SMV1143
18.99
2.20
1.0
0
0.65
SMV1144
24.01
2.20
1.0
0
0.65
SMV1145
41.80
2.50
1.1
0
0.60
SMV1146
61.13
2.50
1.1
0
0.60
SMV1147
89.52
2.50
1.1
0
0.55
SMV1148
104.70
2.25
1.1
0
0.50
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.
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com
Specifications subject to change without notice. 1/01A
3
Hyperabrupt Junction Tuning Varactors
SMV1142–SMV1148
SOD-323
SC-79
0.090 (2.30 mm) MIN.
0.108 (2.74 mm) MAX.
0.045 (1.15 mm) MIN.
0.053 (1.35 mm) MAX. 1
0.010
(0.25 mm) MIN.
0.016
(0.40 mm) MAX.
2
CATHODE
INDICATOR
CATHODE 0.006 (0.15 mm) MIN.
INDICATOR
0.010
(0.25 mm) MIN.
0.014
(0.35 mm) MAX.
0.063 (1.60 mm) MIN.
0.071 (1.80 mm) MAX.
0.028
(0.70 mm) MIN.
0.035
(0.90 mm) MAX.
0.043 (1.10 mm) MIN.
0.051 (1.30 mm) MAX.
0.050
(1.25 mm) MAX.
0.004 (0.10 mm) MAX.
0.010 (0.25 mm) MIN.
2
0.060 (1.50 mm) MIN.
0.067 (1.70 mm) MAX.
0.008 (0.20 mm) NOM.
0.006
(0.15 mm) TYP.
1
0.020
(0.50 mm) MIN.
0.028
(0.70 mm) MAX.
10˚ MAX.
0.003
(0.07 mm) MIN.
0.008
(0.20 mm) MAX.
10˚ MAX.
4
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com
Specifications subject to change without notice. 1/01A