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| Hyperabrupt Junction Tuning Varactor SMV1269-074 Features s High Capacitance Ratio s Ultra Small Size SC-70 Package s Designed for High Volume, Low Cost Battery Applications s Available in Tape and Reel Packaging Description The SMV1269-074 is a dual silicon hyperabrupt junction varactor diode in a common cathode configuration specifically designed for battery operation.The specified high capacitance ratio and low RS of this varactor make it appropriate for low noise VCOs used at frequencies in wireless systems to beyond 2.5 GHz. Applications include low noise and wideband UHF and VHF VCO for GSM, PCS, CDMA and analog phones. Absolute Maximum Ratings Characteristic Forward Current (IF) Power Dissipation (PD) Storage Temperature (TST) Operating Temperature (TOP) Value 20 mA 250 mW -55C to +150C -55C to +125C Electrical Specifications at 25C Parameter Reverse Current (IR) Capacitance (CT) Capacitance (CT) Capacitance Ratio (CTR) Series Resistance (RS) Breakdown Voltage (VBR) VR = 8 V CT @ 0.5 V, VR = 0.5 V, F = 1 MHz CT @ 2.5 V, VR = 2.5 V, F = 1 MHz CT (0.5 V)/CT (2.5 V) VR = 1 V, F = 900 MHz IR = 10 A 10.0 19.2 6.5 2.5 20.5 7.3 2.8 0.6 0.8 V Condition Min. Typ. Max. 20.0 21.8 8.1 Unit nA pF pF Common Cathode Configuration Alpha Industries, Inc. [781] 935-5150 * Fax [617] 824-4579 * Email sales@alphaind.com * www.alphaind.com Specifications subject to change without notice. 1/01A 1 Hyperabrupt Junction Tuning Varactor SMV1269-074 Typical Performance Data 30 25 Capacitance vs. Voltage VR (V) 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 VVAR = 1 V 3.0 3.2 3.4 3.6 VVAR = 4 V 3.8 4.0 4.2 4.4 4.6 4.8 CT (pF) 29.0 25.3 22.4 20.1 18.0 16.2 14.6 13.2 11.9 10.7 9.6 8.7 7.8 7.0 6.3 5.7 5.2 4.8 4.4 4.1 3.9 3.7 3.5 3.3 3.2 3.1 Capacitance (pF) 20 15 10 5 0 0 1 2 3 4 5 Voltage (V) Alpha Varactor (SMV1269-074) 5 Percent of Variation (%) 4 3 2 1 0 -1 -2 -3 -4 -40 -20 0 20 40 VVAR = 2.5 V 60 80 5.0 Temperature (C) Relative Capacitance Change vs. Temperature 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 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 SC-70 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. RES RS R = RS DIODE Varactor_Diode AREA = 1 MODEL = Diode_Model MODE = nonlinear 3 0.045 (1.15 mm) MIN. 0.053 (1.35 mm) MAX. 1 0.014 (0.35 mm) REF. 2 0.026 (0.65 mm) REF. CAP CP C = CP 0.051 (1.30 mm) REF. 0.004 (0.10 mm) MIN. 0.007 (0.18 mm) MAX. 0.031 (0.80 mm) MIN. 0.039 (1.00 mm) MAX. PORT P_Cathode port = 2 0.004 (0.10 mm) MIN. 0.012 (0.30 mm) MAX. 0.000 (0.00 mm) MIN. 0.004 (0.10 mm) MAX. Part Number SMV1269-074 CJO (pF) 28.5 VJ (V) 6.3 M 4.2 CP (pF) 0.5 RS () 0.6 LS (nH) 1.4 2 Alpha Industries, Inc. [781] 935-5150 * Fax [617] 824-4579 * Email sales@alphaind.com * www.alphaind.com Specifications subject to change without notice. 1/01A |
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