SMVA1248-079LF: Hyperabrupt Junction Tuning Varactor

DATA SHEET
SMVA1248-079LF: Hyperabrupt Junction Tuning Varactor
Automotive Applications
 Low tuning voltage VCOs
 Infotainment
 Navigation
 Telematics
 Garage door openers
 Wireless control systems
Features
Description
 AEC-Q101 qualified
The SMVA1248-079LF silicon hyperabrupt junction varactor diode
is designed for use in voltage controlled oscillators (VCOs) with a
low tuning voltage operation and is ideal for in-vehicle
infotainment applications. This varactor is characterized for
capacitance and resistance over temperature.
 ISO/TS16949 certified facility
 High capacitance ratio: C0.3V/C4.7V = 12 typical
 Packages rated MSL1, 260 °C per JEDEC J-STD-020
Table 1 describes the SMVA1248-079LF package and marking.
Skyworks GreenTM products are compliant with
all applicable legislation and are halogen-free.
For additional information, refer to Skyworks
Definition of GreenTM, document number
SQ04–0074.
Table 1. Package and Marking
Single
SC-79
Green™
SMVA1248-079LF
Marking: Cathode and CH
LS = 0.7 nH
The Pb-free symbol or “LF” in the part number denotes a lead-free,
RoHS-compliant package unless otherwise noted as Green™.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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DATA SHEET • SMVA1248-079LF: HYPERABRUPT JUNCTION TUNING VARACTOR
Electrical and Mechanical Specifications
The absolute maximum ratings of the SMVA1248-079LF varactor
are provided in Table 2. Electrical specifications are provided in
Table 3. Typical capacitance values are listed in Table 4. Typical
performance characteristics of the SMVA1248-079LF varactor are
illustrated in Figures 1 and 2.
The SPICE model for the SMVA1248-079LF varactor is shown in
Figure 3, and the associated model parameters are provided in
Table 5.
Table 2. SMVA1248-079LF Absolute Maximum Ratings (Note 1)
Parameter
Symbol
Minimum
Maximum
Units
15
V
Reverse voltage
VR
Forward current
IF
20
mA
Power dissipation
PDIS
250
mW
Operating temperature
TOP
–55
+125
C
Storage temperature
TSTG
–55
+150
C
Electrostatic discharge:
ESD
500
500
<50
V
V
V
Charged Device Model (CDM), Class 2
Human Body Model (HBM), Class 1A
Machine Model (MM), Class A
Note 1: Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other
parameters set at or below their nominal value. Exceeding any of the limits listed here may result in permanent damage to the device.
CAUTION: Although this device is designed to be as robust as possible, electrostatic discharge (ESD) can damage this device. This device
must be protected at all times from ESD. Static charges may easily produce potentials of several kilovolts on the human body
or equipment, which can discharge without detection. Industry-standard ESD precautions should be used at all times.
Table 3. SMVA1248-079LF Electrical Specifications (Note 1)
(TOP = 25 C, Unless Otherwise Noted)
CT
@ 0.3 V
(pF)
CT
@ 4.7 V
(pF)
CT
@1V
(pF)
CT
@3V
(pF)
CT @ 0.3 V
CT @ 4.7 V
(Ratio)
CT @ 1 V
CT @ 3 V
(Ratio)
RS @ 3 V,
500 MHz
(Ω)
Q @ 3 V,
50 MHz
Min.
Typical
Typical
Max.
Typical
Typical
Min.
Typical
Typical
Max.
Typical
15.0
17
1.5
1.70
12.3
2.60
10.8
12.0
4.7
3.3
700
Note 1: Performance is guaranteed only under the conditions listed in this table.
Reverse voltage VR (IR = 10 μA) = 15 V minimum
Reverse current IR (VR = 12 V) = 20 nA maximum
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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DATA SHEET • SMVA1248-079LF: HYPERABRUPT JUNCTION TUNING VARACTOR
Table 4. Capacitance vs Reverse Voltage
VR
(V)
CT (pF)
0
22.62
0.5
16.32
1.0
12.33
1.5
9.12
2.0
6.27
2.5
3.93
3.0
2.57
3.5
1.95
4.0
1.71
4.5
1.59
5.0
1.49
5.5
1.44
6.0
1.40
6.5
1.36
7.0
1.33
7.5
1.31
8.0
1.30
Typical Performance Characteristics
+15
+2
+10
VR = 1 V
Percentage Change (%)
Percentage Change (%)
+3
+1
0
–1
–2
VR = 4 V
+5
0
–5
–10
–15
–20
–25
–3
–40
–20
0
+20
+40
+60
+80
Temperature (°C)
Figure 1. Relative Capacitance Change vs Temperature
–50
–25
0
+25
+50
+75
+100
Temperature (°C)
Figure 2. Relative Series Resistance Change vs Temperature
@ 500 MHz
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
203203B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 7, 2015
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DATA SHEET • SMVA1248-079LF: HYPERABRUPT JUNCTION TUNING VARACTOR
PORT
P_anode
port = 1
IND
LS
L = LS
RES
RS
R = RS
CAP
CP
C = CP
DIODE
Varactor_Diode
AREA = 1
MODEL = Diode_Model
MODE = nonlinear
DIODEM
Diode_Model
IS = 1.00e-14
RS = 0
N=1
TT = 0
CJO = CJO
M=M
VJ = VJ
EG = 1.11
XTI = 3
KF =0
AF =1
PORT
P_Cathode
port = 2
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
S1672
Figure 3. SPICE Model
Table 5. SPICE Model Parameters
CJO
(pF)
VJ
(V)
M
CP
(pF)
RS
(Ω)
22.12
138
100
0.87
2.4
Values extracted from measured performance.
For package inductance (Ls), refer to Table 1.
For more details, refer to the Skyworks Application Note, Varactor SPICE Model for Approved RF VCO Applications, document number 200315.
Package and Handling Information
Instructions on the shipping container label regarding exposure to
moisture after the container seal is broken must be followed.
Otherwise, problems related to moisture absorption may occur
when the part is subjected to high temperature during solder
assembly.
The SMVA1248-079LF varactor is rated to Moisture Sensitivity
Level 1 (MSL1) at 260 C. The device can be used for lead or
lead-free soldering. For additional information, refer to the
Skyworks Application Note, Solder Reflow Information, document
number 200164.
Care must be taken when attaching this product, whether it is
done manually or in a production solder reflow environment.
Production quantities of this product are shipped in a standard
tape and reel format.
Package dimensions are shown in Figure 4, and tape and reel
dimensions are provided in Figure 5.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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DATA SHEET • SMVA1248-079LF: HYPERABRUPT JUNCTION TUNING VARACTOR
Box
or
Bar
Polarity
Indicator Area
0.006 (0.15 mm) Min.
0.010
(0.25 mm) Min.
0.014
(0.35 mm) Max.
1
2
0.028
(0.70 mm) Min.
0.035
(0.90 mm) Max.
0.060 (1.50 mm) Min.
0.067 (1.70 mm) Max.
0.043 (1.10 mm) Min.
0.051 (1.30 mm) Max.
10° Max.
0.020
(0.50 mm) Min.
0.028
(0.70 mm) Max.
0.003
(0.07 mm) Min.
0.008
(0.20 mm) Max.
10° Max.
Dimensions are in inches (millimeters shown in parentheses)
S1652
Figure 4. SC-79 Package Dimensions
Ø1.50± 0.10
4.00 ± 0.10
4.00 ± 0.10
2.00 ± 0.05
0.229 ± 0.02 (T)
1.75 ± 0.10
B
A
B
Pin 1 Indicator
0.80 ± 0.05 (Ko)
B
8.00 ± 0.20
A
3.50 ± 0.05
1.40 ± 0.05
1.95 ± 0.05 (Bo)
2° Max
Ø0.50± 0.05
0.39 ± 0.05
2o Max
0.90 ± 0.05 (Ao)
A
Notes:
1. Carrier tape: black conductive polycarbonate or polystyrene.
2. Cover tape material: transparent conductive PSA.
3. Cover tape size: 5.4 mm width.
4. ESD-surface resistivity is ≤1 x 108 Ohms/square per
EIA, JEDEC TNR Specification.
4. All measurements are in millimeters.
S2929
Figure 5. SC-79 Tape and Reel Dimensions
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
203203B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 7, 2015
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DATA SHEET • SMVA1248-079LF: HYPERABRUPT JUNCTION TUNING VARACTOR
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August 7, 2015 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 203203B