DATA SHEET
SMV1405–SMV1413: Abrupt Junction Tuning Varactors
Features
High Q
G
Low series resistance for low phase noise
G
Multiple packages: SOT-23, SC-70 and SC-79
G
Available lead (Pb)-free and RoHS-compliant MSL-1 @ 260 °C
per JEDEC J-STD-020
G
Designed for high-volume commercial applications
G
SPICE models are available
G
Absolute Maximum Ratings
Description
The SMV1405–SMV1413 series of silicon abrupt junction varactor
diodes is designed for use in VCOs requiring tight capacitance
tolerances. The low resistance of these varactors makes them
appropriate for high Q resonators in wireless system VCOs to
frequencies beyond 2.5 GHz. The devices are characterized for
capacitance over temperature. SPICE models are provided.
Characteristic
Reverse voltage (V
R
)
Forward current (I
F
)
Power dissipation (P
D
)
Storage temperature (T
ST
)
Operating temperature (T
OP
)
ESD human body model
Value
30 V
20 mA
250 mW
-55 °C to +150 °C
-55 °C to +125 °C
Class O
NEW
Skyworks offers lead (Pb)-free, RoHS (Restriction of
Hazardous Substances)-compliant packaging.
Performance is guaranteed only under the conditions listed in the specifications table and is
not guaranteed under the full range(s) described by the Absolute Maximum specifications.
Exceeding any of the absolute maximum/minimum specifications may result in permanent
damage to the device and will void the warranty.
CAUTION:
Although this device is designed to be as robust as
possible, ESD (Electrostatic Discharge) can damage
this device. This device must be protected at all times
from ESD. Static charges may easily produce poten-
tials of several kilovolts on the human body or
equipment, which can discharge without detection.
Industry-standard ESD precautions must be employed
at all times.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200068 Rev. F • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • September 28, 2007
1
DATA SHEET • SMV1405–SMV1413
Typical Performance Data
100.0
6
5
4
3
2
1
0
-1
-2
-3
-4
-5
-40
Capacitance (pF)
10.0
SMV1413
1.0
SMV1405
SMV1408
Percentage Change (%)
V
R
= 4 V
V
R
= 30 V
V
R
= 1 V
0.1
0
5
10
15
20
25
30
-20
0
20
40
60
80
Reverse Voltage (V)
Temperature (˚C)
Capacitance vs. Reverse Voltage
Relative Capacitance Change
vs. Temperature
SPICE Model
PORT
P_anode
port = 1
IND
L
S
L = L
S
Typical Capacitance Values
V
R
(V)
DIODEM
Diode_Model
I
S
= 1.00e-14
R
S
= 0
N=1
T
T
= 0
C
JO
= C
JO
M=M
V
J
= V
J
E
G
= 1.11
X
TI
= 3
K
F
=0
A
F
=1
F
C
= 0.5
B
V
= 0
I
BV
= 1e-3
I
SR
= 0
N
R
= 2
I
KF
= 0
N
BV
= 1
I
BVL
= 0
N
BVL
= 1
T
BV1
= 0
T
NOM
= 27
F
FE
= 1
SMV1405
C
T
(pF)
2.67
2.12
1.84
1.7
1.55
1.44
1.34
1.25
1.17
0.95
0.77
0.63
SMV1408
C
T
(pF)
4.08
3.36
2.94
2.6
2.38
2.24
2.08
1.88
1.72
1.28
1.01
0.95
SMV1413
C
T
(pF)
9.24
7.39
6.37
5.71
5.22
4.85
4.55
4.1
3.77
2.85
2.12
1.77
0
0.5
1
1.5
2
2.5
3
4
5
10
20
30
RES
R
S
R = R
S
DIODE
Varactor_Diode
AREA = 1
MODEL = Diode_Model
MODE = nonlinear
CAP
C
P
C = C
P
PORT
P_Cathode
port = 2
Recommended Solder Reflow Profiles
R
S
(W )
0.8
0.6
0.35
Part
Number
SMV1405
SMV1408
SMV1413
C
JO
(pF)
2.92
3.7
9.2
V
J
(V)
0.68
0.8
0.79
M
0.41
0.48
0.45
C
P
(pF)
0.05
0.13
0.13
Refer to the
“Recommended Solder Reflow Profile”
Application Note.
Tape and Reel Information
Refer to the
“Discrete Devices and IC Switch/Attenuators
Tape and Reel Package Orientation”
Application Note.
Values extracted from measured performance.
For package inductance (L
S
) refer to package type.
For more details refer to the “Varactor SPICE Models for RF VCO Applications”
Application Note.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200068 Rev. F • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • September 28, 2007
3
DATA SHEET • SMV1405–SMV1413
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Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200068 Rev. F • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • September 28, 2007
5