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DATA SHEET
SMP1345 Series: Very Low Capacitance Plastic Packaged Silicon PIN Diodes
Features
Designed for high isolation LNB, WLAN and wireless switch applications Very low insertion loss (0.4 dB) 0.15 pF capacitance Available lead (Pb)-free MSL-1 @ 250 C per JEDEC J-STD-020 Available in tape and reel packaging
Description
The SMP1345 series of plastic packaged, surface mountable PIN diodes is designed for high volume LNB, WLAN and switch applications from 10 MHz to 6 GHz. The short carrier lifetime of typically 100 ns, combined with its thin I region width of nominally, 10 m, results in a fast speed RF switching PIN diode. The RF performance of the SMP1345 series is assured by virtue of its very low capacitance (0.15 pF) and low resistance (1.5 at 10 mA). The SMP1345-518 has been specifically designed for WLAN 802.11 a, b, and g applications. It is ideally used for diversity switch applications.
Absolute Maximum Ratings
Characteristic Reverse voltage (VR) Power dissipation @ 25 C lead temperature (PD) Storage temperature (TST) Operating temperature (TOP) ESD human body model Value 50 V 250 mW -65 C to +150 C -65 C to +150 C Class 1B
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.
NEW
Skyworks offers lead (Pb)-free "environmentally friendly" packaging that is RoHS compliant (European Parliament for the Restriction of Hazardous Substances).
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
200046 Rev. C * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * February 21, 2005
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DATA SHEET * SMP1345 SERIES
Common Anode SOT-23 SMP1345-003 Marking: PU9 SMP1345-003LF Marking: RU9 LS = 1.5 nH
Common Cathode SOT-23 SMP1345-004 Marking: PU3 SMP1345-004LF Marking: RU3 LS= 1.5 nH
Series Pair SOT-23 SMP1345-005 Marking: PU2 SMP1345-005LF Marking: RU2 LS= 1.5 nH
Single SC-79 SMP1345-079
Ring LGA SMP1345-518 Lead (Pb)-Free Marking: 0
SMP1345-079LF LS= 0.7 nH LS= 0.6 nH
LF denotes lead (Pb)-free packaging option as an alternative to our standard tin/lead (Sn/Pb) packaging.
Electrical Specifications at 25 C
Parameter Reverse current (IR) Capacitance (CT) Capacitance (CT) Resistance (RS) Resistance (RS) Forward voltage (VF) Carrier lifetime (TI) I region width Condition VR = 50 V F = 1 MHz, V = 1 V F = 1 MHz, V = 5 V F = 100 MHz, I = 1 mA F = 100 MHz, I = 10 mA IF = 10 mA IF = 10 mA 0.19 0.18 3.50 1.50 0.89 100 10 2.00 0.20 Typ. Max. 10 Unit A pF pF V ns m
Typical Performance Data
0.20 100
0.15
Series Resistance ()
Capacitance (pF)
10
1
0.10
0.1
0.05 0 5 10 15 20 25 30
0.01 0.01
0.1
1
10
100
Reverse Voltage (V)
Forward Current (mA)
Total Capacitance vs. Reverse Voltage Measured in an SC-79 Package
Series Resistance vs. Current @ 100 MHz
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 2
February 21, 2005 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * 200046 Rev. C
DATA SHEET * SMP1345 SERIES
Truth Table
CTR1 3.3 V 0V CTR2 0V 3.3 V Low Loss Paths RF1-RF4 RF2-RF3 RF1-RF3 RF2-RF4
WLAN Application Circuit for DPDT Diversity Switch Using SMP1345-518
L1 RF3 C5 VDC = 3.3 V CTR2 R4 C1 L4 C8 U1 SMP1345-518 C4 RF1 C6 C7 L3 RF4 C3 R1-R4 0402 200 L1-L4 0603 18 nH C1-C8 0402 10 pF L2 RF2 C2 VDC = 3.3 V R2 CTR2 VDC = 3.3 V R1 CTR1
R3 CTR1 VDC = 3.3 V
Bridge Switch Schematic
2.000
EVAL BOARD SMP1345-518 RF3 C8 C1 L4 R1 R4 C5 C2 RF2 L1
SK40253 REV 1
1.500
0.014 RF1 C4 C7
L3 R2 R3
L2 C6 C3 RF4
CTR1
CTR2
Evaluation Board
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200046 Rev. C * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * February 21, 2005
3
DATA SHEET * SMP1345 SERIES
Typical Performance Data For SMP1345-518
-0.2 -0.4 -0.6 -0.8 -1.0 -1.2 -1.4 -1.6 -1.8 -2.0 -2.2 -2.4 1.0 2.0 3.0 4.0 -18 -20 -22
Insertion Loss
Isolation
-24 -26 -28 -30 -32 1.0 2.0 3.0 4.0
Frequency (GHz)
Frequency (GHz)
Insertion Loss vs. Frequency
Isolation vs. Frequency
-13 -14 -15 -16 -17 -18 -19 -20 -21 -22 -23 -24 -25 1.0 2.0 3.0 4.0
Return Loss
Frequency (GHz)
Return Loss vs. Frequency
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 4
February 21, 2005 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * 200046 Rev. C
DATA SHEET * SMP1345 SERIES
Recommended Solder Reflow Profiles
Refer to the "Recommended Solder Reflow Profile" Application Note.
LGA
0.058 (1.47 mm) 0.054 (1.39 mm) Pin 3 0.048 (1.23 mm) 0.044 (1.13 mm) Pin 2 0.028 (0.70 mm) 0.023 (0.58 mm)
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.
Pin 4 Top View (0.00) (0.40) (0.87)
Pin 1 Side View (1.27) Pin 1 (0.138 x 45) Pin 2 (0.076) All Around
2
(1.03) 0.060 (1.50 mm) Min. 0.067 (1.70 mm) Max. 0.043 (1.10 mm) Min. 0.051 (1.30 mm) Max. 0.020 (0.50 mm) Min. 0.028 (0.70 mm) Max. 10 Max. (0.73) (0.30) (0.00)
Pin 4
Pin 3
Bottom View
10 Max. 0.003 (0.07 mm) Min. 0.008 (0.20 mm) Max.
SOT-23
0.110 (2.80 mm) Min. 0.120 (3.04 mm) Max.
3
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
0.083 (2.10 mm) Min. 0.104 (2.64 mm) Max.
0.037 (0.95 mm) Ref. 0.020 (0.51 mm) Ref. 0.076 (1.92 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.
0.022 (0.55 mm) Ref.
0.0005 (0.01 mm) Min. 0.004 (0.10 mm) Max.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200046 Rev. C * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * February 21, 2005
5
DATA SHEET * SMP1345 SERIES
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 6
February 21, 2005 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice. * 200046 Rev. C

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