Directional Coupler 0.81–0.96 GHz DC08-73 Features ■ Low Cost ■ Low Profile ■ Small SOT-6 Package ■ Tape & Reel Description The DC08-73 is a monolithic directional coupler tailored to the 0.81–0.96 GHz band. It offers low loss, good isolation, good input/output matching and exceptional coupling repeatability. It may be used at higher frequencies when stronger coupling is required. It is available in the SOT-6 leaded surface mount package. Electrical Specifications at 25°C Parameter Min. Frequency Typ. 0.81 Insertion Loss1 .35 Isolation 21 Max. Unit 0.96 GHz .45 22 Input VSWR 1.05:1 1.3:1 Output VSWR 1.05:1 1.3:1 Coupling 14 Coupled Port VSWR dB dB 15 16 1.2:1 1.3:1 dB 1. Coupling loss included. Pin Out Block Diagram 6 OUT 5 GND 4 DC08 3 COUPLED 2 GND 1 GND RF IN 1 6 2 5 3 4 Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 3/99A 1 Directional Coupler 0.81–0.96 GHz DC08-73 0.0 1.5 -0.5 1.4 Output VSWR Insertion Loss (dB) Typical Performance Data -1.0 -1.5 1.1 -2.5 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0 1.0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0 Frequency (GHz) Frequency (GHz) Insertion Loss vs. Frequency Output VSWR vs. Frequency Coupled Port VSWR 1.5 -10.0 -20.0 -30.0 -40.0 1.4 1.3 1.2 1.1 1.0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0 Frequency (GHz) Frequency (GHz) Isolation vs. Frequency Coupled Port VSWR vs. Frequency 1.5 -5.0 1.4 -10.0 Coupling (dB) Isolation (dB) 1.2 -2.0 0.0 Input VSWR 1.3 1.3 1.2 -20.0 -25.0 1.1 1.0 -15.0 -30.0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0 Frequency (GHz) Frequency (GHz) Input VSWR vs. Frequency Coupling vs. Frequency Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 3/99A 2 Directional Coupler 0.81–0.96 GHz DC08-73 Absolute Maximum Ratings SOT-6 Characteristic Value Input Power 0.074 (1.90 mm REF.) +4 W Operating Temperature -40°C to +85°C Storage Temperature -65°C to +150°C Electrostatic Discharge +125 V Note: Exceeding these parameters may cause irreversible damage. 0.071 (1.80 mm) 0.052 (1.30 mm) PIN 1 INDICATOR PIN 1 0.020 (0.51 mm) 0.014 (0.350 mm) Recommended Board Layout 0.075 0.018 TYP. 0.126 (3.20 mm) 0.087 (2.20 mm) PIN 6 0.020 0.037 (0.95 mm) REF. 0.057 (1.45 mm) 0.035 (0.90 mm) 0.006 (0.15 mm) 0.000 (0.00 mm) 5.0˚ ± 1˚ 0.012 (0.30 mm) TYP. 0.014 (0.26 mm) 0.004 (0.10 mm) 5.0˚ ± 1˚ 0.122 (3.10 mm) 0.106 (2.70 mm) 0.022 (0.61 mm) 0.004 (0.10 mm) 0.015 0.039 TYP. 0.0200 DIA. VIA 3 PLACES Material is 10 mil FR4. Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 3/99A 3