Directional Coupler DC17-73 Features ■ Low Cost ■ Low Profile ■ Small SOT-6 Package ■ Tape & Reel Description The DC17-73 is a monolithic directional coupler for low cost wireless applications. It offers low loss, good isolation, good input/output matching and exceptional coupling repeatability. Performance specified for two different bands. It is available in the SOT-6 lead surface mount package. Electrical Specifications at 25°C Parameter Min. Frequency Typ. 1.42 Insertion Loss1 .60 Isolation 21 Input VSWR Output VSWR Coupling 10.8 Coupled Port VSWR Max. Unit Min. 1.66 GHz 1.71 .70 dB 22 .75 dB 1.1:1 1.3:1 1.1:1 1.3:1 11.8 12.8 1.2:1 1.3:1 Typ. 20 dB 9.3 Max. Unit 1.99 GHz .85 dB 21 dB 1.1:1 1.3:1 1.1:1 1.3:1 10.3 11.3 1.25:1 1.35:1 dB 1. Coupling loss included. Pin Out Block Diagram 6 OUT 5 GND 4 DC17 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 DC17-73 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 1.5 Coupled Port VSWR -8.0 -16.0 -24.0 -32.0 -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 DC17-73 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