DATA SHEET SMP1345 Series: Very Low Capacitance, Plastic Packaged Silicon PIN Diodes Applications x High isolation LNBs, WLANs, and wireless switches Features x Very low insertion loss: 0.4 dB x Capacitance: 0.15 pF x Packages rated MSL1, 260 qC per JEDEC J-STD-020 The RF performance of the SMP1345 series is assured by virtue of their 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/g applications. It is ideally suited for diversity switch applications. Skyworks offers lead (Pb)-free, RoHS (Restriction of Hazardous Substances) compliant packaging. Table 1 describes the various packages and marking of the SMP1345 series. Description The SMP1345 series of plastic packaged, surface mountable PIN diodes is designed for high volume Low-Noise Block (LNB), Wireless Local Area Network (WLAN), and switch applications from 10 MHz to 6 GHz. The short carrier lifetime of 100 ns (typical), combined with their thin I-region width of 10 m (nominal) results in a group of fast speed RF switching PIN diodes. Table 1. SMP1345 Series Packaging and Marking Common Anode Common Cathode Series Pair Single Ring SOT-23 SOT-23 SOT-23 SC-79 LGA SMP1345-003 Marking: PU9 SMP1345-004 Marking: PU3 SMP1345-005 Marking: PU2 SMP1345-003LF Marking: RU9 SMP1345-004LF Marking: RU3 SMP1345-005LF Marking: RU2 SMP1345-079LF LS = 1.5 nH LS = 1.5 nH LS = 1.5 nH LS = 0.7 nH SMP1345-518 Marking: 0 Pb-Free LS = 0.6 nH SC-70 SMP1345-075LF Marking: RU2 LS = 1.4 nH LF denotes lead (Pb)-free, RoHS-compliant packaging option as an alternative to the standard Skyworks tin/lead (Sn/Pb) packaging. Innovation to GoTM Select Linear Products (indicated by ) now available for purchase online. Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 200046G * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * November 19, 2009 1 DATA SHEET * SMP1345 SERIES DIODES Electrical and Mechanical Specifications The state of the SMP1345-518 series diode is determined by the logic provided in Table 4. Typical performance characteristics of the SMP1345 series are illustrated in Figures 1 to 5. The absolute maximum ratings of the SMP1345 series are provided in Table 2. Electrical specifications are provided in Table 3. Table 2. SMP1345 Series Absolute Maximum Ratings Parameter Symbol Reverse voltage Minimum Maximum Units 50 V VR Power dissipation @ 25 C lead temperature PD 250 mW Storage temperature TSTG -65 +150 qC Operating temperature TA -65 +150 qC Note: 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. The SMP1345 series PIN diodes are Class 1B ESD devices. Table 3. SMP1345 Series Electrical Specifications (Note 1) (TA = +25 qC, Unless Otherwise Noted) Parameter Symbol Test Condition Max Units 10 A 0.19 0.18 0.20 pF pF I = 1 mA I = 10 mA 3.5 1.5 2.0 Reverse current IR VR = 50 V Capacitance CT F = 1 MHz V=1V V=5V Resistance RS Min Typical F = 100 MHz Forward voltage VF IF = 10 mA 0.89 V Carrier lifetime TI IF = 10 mA 100 ns 10 m I region width Note 1: Performance is guaranteed only under the conditions listed in this Table. Table 4. SMP1345-518 PIN Diode Truth Table CTR1 (V) CTR2 (V) Low Loss Paths 3.3 0 RF1 to RF4 RF2 to RF3 0 3.3 RF1 to RF3 RF2 to RF4 Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 2 November 19, 2009 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * 200046G DATA SHEET * SMP1345 SERIES DIODES Typical Performance Characteristics 100 Series Resistance () Capacitance (pF) 0.20 0.15 0.10 0.05 0 5 10 15 20 25 10 1 0.1 0.01 0.01 30 Reverse Voltage (V) 10 100 Figure 2. Series Resistance vs Current @ 100 MHz -18 -0.2 -0.4 -0.6 -0.8 -1.0 -1.2 -1.4 -1.6 -1.8 -2.0 -2.2 -2.4 -20 Isolation (d B) Insertion Loss (dB) 1 Forward Current (mA) Figure 1. Total Capacitance vs Reverse Voltage (SC-79 Package Measurement) -22 -24 -26 -28 -30 -32 1.0 2.0 3.0 4.0 1.0 2.0 3.0 4.0 Frequency (GHz) Frequency (GHz) Figure 4. Isolation vs Frequency Figure 3. Insertion Loss vs Frequency Return Loss (dB) 0.1 -13 -14 -15 -16 -17 -18 -19 -20 -21 -22 -23 -24 -25 1.0 2.0 3.0 4.0 Frequency (GHz) Figure 5. Return Loss vs Frequency Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 200046G * Skyworks Proprietary and Confidential information * Products and Product Information are Subject to Change Without Notice * November 19, 2009 3 DATA SHEET * SMP1345 SERIES DIODES Evaluation Board Description The SMP1345 series is rated to Moisture Sensitivity Level 1 (MSL1) at 260 qC. It can be used for lead or lead-free soldering. For additional information, refer to the Skyworks Application Note, Solder Reflow Information, document number 200164 An Evaluation Board is used to test the performance of the SMP1345 series PIN diodes. An assembly drawing for the Evaluation Board is shown in Figure 6. A typical application circuit diagram for a DPDT diversity switch using the SMP1345-518 is provided in Figure 7. 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. For packaging details, refer to the Skyworks Application Note Discrete Devices and IC Switch/Attenuators Tape and Reel Package Orientation, document number 200083. Package and Handling Information Package dimensions are shown in Figures 8 to 11. 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. 2.000 EVAL BOARD SMP1345-518 C5 C8 C1 L4 RF3 R1 R4 C2 RF2 L1 SK40253 1.500 REV 1 RF4 0.014 RF1 L2 L3 C4 C7 CTR1 R2 R3 C6 C3 CTR2 All measurements are in inches S1668 Figure 6. SMP1345 Series PIN Diode Evaluation Board Assembly Diagram Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 4 November 19, 2009 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * 200046G DATA SHEET * SMP1345 SERIES DIODES L1 R1 RF3 CTR1 VDC = 3.3 V C5 C1 L4 R4 CTR2 RF2 VDC = 3.3 V C8 C2 SMP1345-518 C4 L2 R2 RF1 CTR2 C6 VDC = 3.3 V C3 L3 C7 R3 CTR1 VDC = 3.3 V RF4 R1-R4: 0402 200 L1-L4: 0603 18 nH C1-C8: 0402 10 pF S1666 Figure 7. WLAN Application Circuit for DPDT Diversity Switch Using The SMP1345-518 Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 200046G * Skyworks Proprietary and Confidential information * Products and Product Information are Subject to Change Without Notice * November 19, 2009 5 DATA SHEET * SMP1345 SERIES DIODES 0.058 (1.47 mm) 0.054 (1.39 mm) 0.028 (0.70 mm) 0.023 (0.58 mm) Pin 3 Pin 4 Pin 2 Pin 1 0.048 (1.23 mm) 0.044 (1.13 mm) (1.03) (0.73) (1.27) (0.87) Side View (0.40) (0.00) Top View Pin 3 Pin 4 (0.138 x 45) (0.30) (0.00) Pin 1 Pin 2 (0.076) All Around Bottom View Dimensions are in inches (millimeters shown in parentheses) S1811 Figure 8. LGA Package Dimension Drawing 0.071 (1.80 mm) Min. 0.087 (2.20 mm) Max. 0.010 (0.25 mm) Min. 0.016 (0.40 mm) Max. 3 0.071 (1.80 mm) Min. 0.094 (2.40 mm) Max. 0.045 (1.15 mm) Min. 0.053 (1.35 mm) Max. 1 2 0.014 (0.35 mm) Ref. 0.026 (0.65 mm) Ref. 0.051 (1.30 mm) Ref. 0.004 (0.10 mm) Min. 0.007 (0.18 mm) Max. 0.004 (0.10 mm) Min. 0.012 (0.30 mm) Max. 0.031 (0.80 mm) Min. 0.039 (1.00 mm) Max. 0.000 (0.00 mm) Min. 0.004 (0.10 mm) Max. Dimensions are in inches (millimeters shown in parentheses) S1653 Figure 9. SC-70 Package Dimension Drawing Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 6 November 19, 2009 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * 200046G DATA SHEET * SMP1345 SERIES DIODES Cathode Indicator 0.010 (0.25 mm) Min. 0.014 (0.35 mm) Max. 0.006 (0.15 mm) Min. 1 0.028 (0.70 mm) Min. 0.035 (0.90 mm) Max. 2 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. 0.003 (0.07 mm) Min. 0.008 (0.20 mm) Max. 10 Max. Dimensions are in inches (millimeters shown in parentheses) S1652 Figure 10. SC-79 Package Dimension Drawing 0.110 (2.80 mm) Min. 0.120 (3.04 mm) Max. 0.012 (0.30 mm) Min. 0.020 (0.50 mm) Max. 3 0.083 (2.10 mm) Min. 0.104 (2.64 mm) Max. 0.047 (1.20 mm) Min. 0.055 (1.40 mm) Max. 1 2 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. 0.035 (0.89 mm) Min. 0.044 (1.12 mm) Max. 8 Max. 0.0005 (0.01 mm) Min. 0.004 (0.10 mm) Max. 0.022 (0.55 mm) Ref. Dimensions are in inches (millimeters shown in parentheses) S1389 Figure 11. SOT-23 Package Dimension Drawing Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 200046G * Skyworks Proprietary and Confidential information * Products and Product Information are Subject to Change Without Notice * November 19, 2009 7 DATA SHEET * SMP1345 SERIES DIODES Copyright (c) 2002-2007, 2009 Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. 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Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 8 November 19, 2009 * Skyworks Proprietary Information * Products and Product Information are Subject to Change Without Notice * 200046G