DATA SHEET SMV1770-040LF: Hyperabrupt Junction Tuning Varactor Applications Low-noise and wideband UHF and VHF VCOs High-volume, low-cost battery-powered tuning circuits Features Low series resistance High capacitance ratio Ultra-small SOD-882 package (MSL1, 260 °C per JEDEC J-STD-020) 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. Description The SMV1770-040LF is a silicon hyperabrupt junction varactor diode specifically designed for battery operation. The specified high capacitance ratio and low reverse voltage make this varactor appropriate for low phase noise voltage-controlled oscillators (VCOs) used at frequencies in wireless systems up to and above 2.5 GHz. Table 1 describes the package and marking of the SMV1770-040LF. Table 1. Packaging and Marking Single SOD-882 Green™ SMV1770-040LF Marking: ED1 LS = 0.45 nH The Pb-free symbol or “LF” in the part number denotes a lead-free, RoHS-compliant package unless otherwise noted as Green™. Tin/lead (Sn/Pb) packaging is not recommended for new designs. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200095K • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • April 8, 2015 1 DATA SHEET • SMV1770-040LF: HYPERABRUPT JUNCTION TUNING VARACTOR Electrical and Mechanical Specifications Package and Handling Information The absolute maximum ratings of the SMV1770-040LF are provided in Table 2. Electrical specifications are provided in Table 3. Typical capacitance values are listed in Table 4. Typical performance characteristics for the SMV1770-040LF are illustrated in Figures 1 and 2. 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 SPICE model for the SMV1770-040LF is shown in Figure 3 and the associated model parameters are provided in Table 5. The SMV1770-040LF is rated to Moisture Sensitivity Level 1 (MSL1) at 260 C. 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. Package dimensions are shown in Figure 4, and tape and reel dimensions are provided in Figure 5。 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. Table 2. SMV1770-040LF Absolute Maximum Ratings (Note 1) Parameter Symbol Minimum Typical Maximum Units 12 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 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. SMV1770-040LF Electrical Specifications (Note 1) (TOP = 25 C, Unless Otherwise Noted) Parameter Symbol Test Condition Min Typical Reverse current IR VR = 8 V Capacitance CT f = 1 MHz : VR = 0.5 V VR = 2.5 V 22.1 7.7 23.6 8.6 2.3 2.7 Capacitance ratio CTR CT @ 0.5 V/CT @ 2.5 V Series resistance RS f = 900 MHz, VR = 1 V Breakdown voltage VBR IR = 10 μA 0.4 Max Units 20 nA 25.1 9.8 pF pF – 0.5 12 Note 1: Performance is guaranteed only under the conditions listed in this table. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 April 8, 2015 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200095K Ω V DATA SHEET • SMV1770 SERIES VARACTORS Table 4. Capacitance vs Reverse Voltage VR (V) CT (pF) 0 31.2 0.5 23.6 1.0 17.8 1.5 13.7 2.0 10.7 2.5 8.6 3.0 7.0 3.5 5.9 4.0 5.5 4.5 5.2 5.0 5.0 35 +5 30 +4 Percent of Variation (%) Capacitance (pF) Typical Performance Characteristics 25 20 15 10 5 VR = 1 V +3 VR = 2.5 V +2 VR = 4 V +1 0 –1 –2 –3 0 0 1 2 3 4 Reverse Voltage (V) Figure 1. Capacitance vs Voltage 5 6 –4 –40 –20 0 +20 +40 +60 +80 Temperature (°C) Figure 2. Relative Capacitance Change vs Temperature Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200095K • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • April 8, 2015 3 DATA SHEET • SMV1770-040LF: 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 Part Number CJO (pF) VJ (V) M CP (pF) RS (Ω) LS (nH) SMV1770-040LF 33.07 43.4 30 3.54 0.4 0.45 Note: Values extracted from measured performance. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 April 8, 2015 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200095K DATA SHEET • SMV1770 SERIES VARACTORS 0.03 C Seating Plane 0.05/0.00 Pin 1 Indicator 5 2X 0.25 ± 0.05 C 0.05 2X 0.10 M A B 0.325 Terminal 1 1.000 0.650 B A 0.600 0.46 + 0.04 –0.06 0.05 2X 0.50 ± 0.05 0.10 M A B 4 2X NOTES: 1. All measurements are in millimeters. 2. Dimensions and tolerances according to ASME Y14.5M-1994. 3. These packages are used principally for discrete devices. 4. This dimension includes stand-off height and package body thickness, but does not include attached features, e.g., external heatsink or chip capacitors. An integral heatslug is not considered an attached feature. 5. This dimension is primarily terminal plating, but does not include small metal protrusion. Y1410 Figure 4. SOD-882 Package Dimensions 4.00 ± 0.10 Cathode Indicator 2.00 ± 0.05 ∅1.55 ± 0.05 (D0) 0.20 8.00 ± 0.1 1.75 ± 0.10 3.50 ± 0.05 1.15 ± 0.05 (Bo) A ∅0.40 ± 0.05 (D1) 0.47 ± 0.05 (Ko) 2.00 ± 0.05 B B A A 0.70 ± 0.05 (A0) Notes: 1. Carrier tape: black conductive polycarbonate. 2. Cover tape: transparent conductive material. 3. Cover tape size: 5.4 mm width. 4. ESD surface resistivity is ≥1 x 104 ~ ≤ 1 x 108 Ohms/square. 5. All dimensions are in millimeters. B S1922 Figure 5. SOD-882 Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 200095K • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • April 8, 2015 5 DATA SHEET • SMV1770-040LF: HYPERABRUPT JUNCTION TUNING VARACTOR Copyright © 2002-2006, 2009- 2011, 2013-2015 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 • [email protected] • www.skyworksinc.com 6 April 8, 2015 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200095K