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DATA SHEET
SMV1493-SMV1494: Abrupt Junction Tuning Varactors
Features
High Q Low series resistance for low phase noise Multiple packages: SOD-323 and SC-79 Designed for high volume commercial applications SPICE models are available

Absolute Maximum Ratings Description
The SMV1493 and SMV1494 silicon abrupt junction varactor diodes are 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.
Characteristic Forward current (IF) Power dissipation (PD) Storage temperature (TST) Operating temperature (TOP) ESD human body model Value 20 mA 250 mW -55 C to +150 C -55 C to +125 C Class O
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, 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 must be employed at all times.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200070 Rev. A * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * September 22, 2004
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DATA SHEET * SMV1493-SMV1494
Electrical Specifications at 25 C
Part Number Min. SMV1493 SMV1494
Reverse Voltage VR (IR = 10 A): 12 V Reverse Current IR (VR = 10 V): 20 nA
CT @ 1 V (pF) Max. 20.0 41.7 Min. 10.0 20.7 17.4 36.3
CT @ 4 V (pF) Max. 12.1 25.3
RS @ 1 V 500 MHz () Max. 0.50 0.45
Single Marking: CF SOD-323 SMV1493-011 LS = 1.5 nH
Single Marking: Cathode SC-79 SMV1493-079 SMV1494-079 LS = 0.7 nH
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 2
September 22, 2004 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * 200070 Rev. A
DATA SHEET * SMV1493-SMV1494
Typical Performance Data
60 50
Capacitance vs. Reverse Voltage
SMV1493 VR (V) 0.0 0.2 0.4 CT (pF) 28.7 25.6 23.3 21.5 20.1 19.0 17.9 17.0 16.2 15.5 15.0 14.4 13.9 13.5 13.1 12.7 12.4 12.0 11.7 11.4 11.2 10.9 10.7 10.5 10.3 10.1 9.2 8.5 8.0 7.6 7.1 SMV1494 CT (pF) 57.8 51.5 46.9 43.4 40.5 38.4 36.3 34.6 33.0 31.6 30.6 29.5 28.5 27.6 26.7 26.1 25.3 24.7 24.1 23.5 23.1 22.6 22.1 21.7 21.3 20.9 19.2 17.9 16.7 15.7 14.7
Capacitance (pF)
40 30 SMV1494 20 10 SMV1493 0 0 2 4 6 8 10
0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4
Reverse Voltage (V)
Capacitance vs. Reverse Voltage
SPICE Model
PORT P_anode port = 1 IND LS L = LS 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 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
2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0 6.0 7.0 8.0 9.0 10.0 RS () 0.50 0.45
RES RS R = RS DIODE Varactor_Diode AREA = 1 MODEL = Diode_Model MODE = nonlinear
CAP CP C = CP
PORT P_Cathode port = 2
Part Number SMV1493 SMV1494
CJO (pF) 29 58
VJ (V) 0.63 0.63
M 0.47 0.47
CP (pF) 0 0
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.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200070 Rev. A * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * September 22, 2004
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DATA SHEET * SMV1493-SMV1494
SOD-323
0.090 (2.30 mm) Min. 0.108 (2.74 mm) Max. 0.010 (0.25 mm) Min. 0.016 (0.40 mm) Max. 0.063 (1.60 mm) Min. 0.071 (1.80 mm) Max.
SC-79
Cathode Indicator 0.010 (0.25 mm) Min. 0.014 (0.35 mm) Max.
1
0.006 (0.15 mm) Min. 0.028 (0.70 mm) Min. 0.035 (0.90 mm) Max.
2
0.045 (1.15 mm) Min. 0.053 (1.35 mm) Max.
1
2
Cathode Indicator 0.008 (0.20 mm) Nom. 0.006 (0.15 mm) Typ.
0.060 (1.50 mm) Min. 0.067 (1.70 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.
10 Max. 0.003 (0.07 mm) Min. 0.008 (0.20 mm) Max. 10 Max.
0.020 (0.50 mm) Min. 0.028 (0.70 mm) Max.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 4
September 22, 2004 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * 200070 Rev. A
DATA SHEET * SMV1493-SMV1494
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Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200070 Rev. A * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * September 22, 2004
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