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DATA SHEET
SMV1231-SMV1237: Hyperabrupt Tuning Varactors
Features
High capacitance ratio Low series resistance for low phase noise Multiple packages SOT-23, SOD-323, SC-70 and SC-79 Designed for high volume commercial applications Full characterization with SPICE models

Description
The SMV1231-SMV1237 series of silicon hyperabrupt junction varactor diodes is designed for use in VCOs with low tuning voltage operation. The low resistance of these varactors makes them appropriate for high Q resonators in wireless system VCOs to frequencies beyond 2.5 GHz. The SMV1231-SMV1237 series is fully characterized for capacitance and resistance over temperature. SPICE model is provided.
Absolute Maximum Ratings
Characteristic Reverse voltage (VR) Forward current (IF) Power dissipation (PD) Storage temperature (TST) Operating temperature (TOP) ESD human body model Value 15 V 20 mA 250 mW -55 C to +150 C -55 C to +125 C Class 1B
NEW
Skyworks offers lead (Pb)-free "environmentally friendly" packaging that is RoHS compliant (European Parliament for the Restriction of Hazardous Substances).
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
200058 Rev. C * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * January 20, 2005
1
DATA SHEET * SMV1231-SMV1237
Single SC-79 SMV1231-079 Marking: Cathode
Single SOD-323 SMV1231-011 Marking: JA
Single SOT-23
Common Anode SOT-23
Common Cathode SOT-23 SMV1231-004 Marking: JA3
Common Anode SC-70
Common Cathode SC-70 SMV1231-074 Marking: JA3 SMV1231-074LF Marking: KA3
SMV1232-079 Marking: Cathode
SMV1232-011 Marking: CC
SMV1232-004
SMV1232-074 Marking: CC3 SMV1232-074LF Marking: DP3
SMV1233-079 Marking: Cathode
SMV1233-011 Marking: VP SMV1233-011LF Marking: DP
SMV1233-001 Marking: VP1
SMV1233-003 Marking: VP9
SMV1233-004 Marking: VP3
SMV1233-073 Marking: VP9
SMV1233-074 Marking: VP3
SMV1234-079 Marking: Cathode SMV1234-079LF Marking: Cathode SMV1235-079 Marking: Cathode
SMV1234-011 Marking: VQ SMV1234-011LF Marking: DQ SMV1235-011 Marking: VR
SMV1234-001 Marking: VQ1
SMV1234-003 Marking: VQ9
SMV1234-004 Marking: VQ3
SMV1234-073 Marking: VQ9
SMV1234-074 Marking: VQ3
SMV1235-001 Marking: VR1
SMV1235-004 Marking: VR3 SMV1235-004LF Marking: DR3
SMV1235-074 Marking: VR3
SMV1235-011LF Marking: DR SMV1236-079 Marking: Cathode SMV1236-079LF Marking: Cathode SMV1236-011 Marking: AQ SMV1236-011LF Marking: DQ SMV1237-001 Marking: VT1 LS = 0.7 nH LS = 1.5 nH LS = 1.5 nH LS = 1.5 nH
LF denotes lead (Pb)-free packaging option as an alternative to our standard tin/lead (Sn/Pb) packaging.
SMV1236-001 Marking: AQ1
SMV1236-004 Marking: AQ3 SMV1236-004LF Marking: EQ3 SMV1237-004 Marking: VT3 LS = 1.5 nH LS = 1.4 nH
SMV1236-074 Marking: AQ3
SMV1237-074 Marking: VT3 LS = 1.4 nH
Electrical Specifications at 25 C
Part Number SMV1231 SMV1232 SMV1233 SMV1234 SMV1235 SMV1236 SMV1237 CT @ 1 V (pF) Min. 1.43 2.34 3.00 5.85 10.35 15.50 45.00 Max. 1.72 2.86 3.60 7.15 12.65 18.50 54.00 CT @3V (pF) Typ. 0.97 1.5 1.8 3.6 6.4 9.2 26.9 CT @6V (pF) Typ. 0.61 0.94 1.10 2.00 3.60 5.30 14.40 Min. 1.5 1.5 1.5 1.6 1.6 1.6 1.6 CT @ 1 V CT @ 3 V (Ratio) Max. 1.8 1.9 1.9 2.0 2.0 2.0 2.0 2.5 2.6 2.6 2.8 2.9 3.0 3.0 CT @ 1 V CT @ 6 V (Ratio) Min. Max. 2.8 3.3 3.3 3.4 3.4 3.5 3.5 RS @ 3 V 500 MHz () Max. 2.90 1.50 1.20 0.80 0.60 0.50 0.25 Q @3V 50 MHz Typ. 1500 1400 1200 1000 750 700 500
Tested in -079 package. Reverse Voltage VR (IR = 10 A): 15 V minimum. Reverse Current IR (VR = 12 V): 20 nA maximum.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 2
January 20, 2005 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * 200058 Rev. C
DATA SHEET * SMV1231-SMV1237
Typical Performance Data
100.0 SMV1237 SMV1236 SMV1235 3 SMV1231
Capacitance (pF)
10.0
2
RS ()
SMV1232
SMV1233 SMV1234 SMV1235
1.0
1 SMV1231 SMV1234 SMV1233 SMV1232 0 0 2.0 4.0 6.0 8.0 0 SMV1236 SMV1237 1 2 3 4 5
0.1
Reverse Voltage (V)
Reverse Voltage (V)
Capacitance vs. Reverse Voltage
Series Resistance vs. Reverse Voltage @ 500 MHz
10 8
5 4
Percentage Change (%)
Percentage Change (%)
VR = 3 V
3 2 1 0 -1 -2 -3 -4 -40 -20 0 20 40 60 80 VR = 1 V
6 4 2 0 -2 -4 -6 -8 -40 -20 0 20 40 60 80
Temperature (C)
Temperature (C)
Relative Capacitance Change vs. Temperature
Relative Series Resistance Change vs. Temperature @ 500 MHz
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200058 Rev. C * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * January 20, 2005
3
DATA SHEET * SMV1231-SMV1237
Typical Capacitance Values
SMV1231 VR (V) 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 10.0 11.0 12.0 13.0 14.0 15.0 CT (pF) 2.350 1.870 1.580 1.400 1.220 1.090 0.970 0.882 0.794 0.732 0.683 0.648 0.613 0.590 0.567 0.551 0.534 0.512 0.497 0.492 0.487 0.480 0.472 0.466 SMV1232 CT (pF) 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 SMV1233 CT (pF) 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 SMV1234 CT (pF) 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 SMV1235 CT (pF) 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 SMV1236 CT (pF) 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 SMV1237 CT (pF) 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 9.68 9.56 9.47
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
Part Number SMV1231 SMV1232 SMV1233 SMV1234 SMV1235 SMV1236 SMV1237
CJO (pF) - 4.20 4.12 8.75 16.13 21.63 66.16
VJ (V) 1.5 1.7 1.7 2.3 8.0 8.0 10.0
M 0.8 0.9 0.9 1.1 4.0 4.2 5.3
CP (pF) 0.0 0.0 0.7 1.2 2.0 3.2 9.0
RS () 2.50 1.50 1.20 0.80 0.60 0.50 0.25
RES RS R = RS DIODE Varactor_Diode AREA = 1 MODEL = Diode_Model MODE = nonlinear
CAP CP C = CP
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.
PORT P_Cathode port = 2
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 4
January 20, 2005 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * 200058 Rev. C
DATA SHEET * SMV1231-SMV1237
Recommended Solder Reflow Profiles
Profile Feature Average ramp-up rate (TL to TP) Preheat Temperature min. (TSMIN) Temperature max. (TSMAX) Time (min. to max.) (ts) TSMAX to TL Ramp-up rate Time maintained above: Temperature (TL) Time (tL) Peak temperature (TP) Time within 5 C of actual peak temperature (tp) Ramp-down rate Time 25 C to peak temperature SnPb Eutectic Assembly 3 C/second max. 100 C 150 C 60-120 seconds -- 183 C 60-150 seconds 240 +0/-5 C 10-30 seconds 6 C/second max. 6 minutes max. Lead (Pb)-Free Assembly 100% Sn 3 C/second max. 150 C 200 C 60-80 seconds 3 C/second max. 217 C 60-150 seconds 250 +0/-5 C 20-40 seconds 6 C/second max. 8 minutes max.
All temperatures refer to the topside of the package, measured on the package body surface. Reference JEDEC J-STD-020C.
TP
tp Critical Zone TL to TL
TL IL TSMAX
Temperature
TSMIN ts Preheat
25 C t 25 C to Peak
Time
Reference JEDEC J-STD-020
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200058 Rev. C * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * January 20, 2005
5
DATA SHEET * SMV1231-SMV1237
SOT-23
0.110 (2.80 mm) Min. 0.120 (3.04 mm) Max.
3
SC-70
0.012 (0.30 mm) Min. 0.020 (0.50 mm) Max. 0.047 (1.20 mm) Min. 0.055 (1.40 mm) Max.
1 2
0.071 (1.80 mm) Min. 0.087 (2.20 mm) Max. 0.010 (0.25 mm) Min. 0.016 (0.40 mm) Max. 0.071 (1.80 mm) Min. 0.094 (2.40 mm) Max. 1 0.014 (0.35 mm) Ref. 0.026 (0.65 mm) Ref. 2
0.083 (2.10 mm) Min. 0.104 (2.64 mm) Max.
3 0.045 (1.15 mm) Min. 0.053 (1.35 mm) Max.
0.037 (0.95 mm) Ref. 0.020 (0.51 mm) Ref. 0.076 (1.92 mm) Ref.
0.051 (1.30 mm) Ref. 0.003 (0.080 mm) Min. 0.008 (0.20 mm) Max. 8 Max. 0.035 (0.89 mm) Min. 0.044 (1.12 mm) Max. 0.004 (0.10 mm) Min. 0.007 (0.18 mm) Max. 0.031 (0.80 mm) Min. 0.039 (1.00 mm) Max.
0.022 (0.55 mm) Ref.
0.0005 (0.01 mm) Min. 0.004 (0.10 mm) Max.
0.004 (0.10 mm) Min. 0.012 (0.30 mm) Max.
0.000 (0.00 mm) Min. 0.004 (0.10 mm) Max.
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 6
January 20, 2005 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * 200058 Rev. C
DATA SHEET * SMV1231-SMV1237
Copyright (c) 2002, 2003, 2004, 2005, Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. ("Skyworks") products. These materials are provided by Skyworks as a service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility for errors or omissions in these materials. Skyworks may make changes to its documentation, products, specifications and product descriptions at any time, without notice. Skyworks makes no commitment to update the information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from future changes to its documentation, products, specifications and product descriptions. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by or under this document. Except as may be provided in Skyworks Terms and Conditions of Sale for such products, Skyworks assumes no liability whatsoever in association with its documentation, products, specifications and product descriptions. THESE MATERIALS ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED OR OTHERWISE, RELATING TO SALE AND/OR USE OF SKYWORKS PRODUCTS INCLUDING WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. SKYWORKS FURTHER DOES NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE MATERIALS. SKYWORKS SHALL NOT BE LIABLE FOR ANY DAMAGES, INCLUDING SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS THAT MAY RESULT FROM THE USE OF THESE MATERIALS WHETHER OR NOT THE RECIPIENT OF MATERIALS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. Skyworks products are not intended for use in medical, lifesaving or life-sustaining applications. Skyworks customers using or selling Skyworks products for use in such applications do so at their own risk and agree to fully indemnify Skyworks for any damages resulting from such improper use or sale. The following are trademarks of Skyworks Solutions, Inc.: Skyworks(R), the Skyworks logo, and Breakthrough Simplicity(R). Product names or services listed in this publication are for identification purposes only, and may be trademarks of Skyworks or other third parties. Third-party brands and names are the property of their respective owners. Additional information, posted at www.skyworksinc.com, is incorporated by reference.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200058 Rev. C * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * January 20, 2005
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