CSD-10H-1.5G DIRECTIONAL COUPLER REV: 008, 07/27/04 TECHNICAL DESCRIPTION FEATURES • 1.0 - 2.0 GHz • LOW LOSS • HIGH DIRECTIVITY • EXCELLENT COUPLING ACCURACY • SURFACE MOUNT APPLICATIONS • DCS 1800 BASE STATION RF SUBSYSTEMS • PCS 1900 BASE STATION RF SUBSYSTEMS • TELEMETRY • GPS The Multi-Mix® CSD-10H-1.5G provides a 10 dB coupling with low insertion loss, low VSWR, and high directivity. Accurate coupling factors make this series ideal for use in power amplifiers and RF signal distribution and processing equipment. CSD - 10 directional couplers are fusion bonded multilayer stripline devices. The fusion bonding process yields a homogeneous monolithic dielectric structure with reliability, ruggedness, and electrical performance that is superior to conventional adhesive bonding techniques. GENERAL SPECIFICATIONS MEAN COUPLING VSWR (MAX, ALL PORTS) 10 ± 1.0 1.22:1 FREQUENCY RANGE MHz INSERTION LOSS (dB MAX) 1000 - 2000 0.25 FREQUENCY SENSITIVITY (dB MAX) DIRECTIVITY (dB MIN) POWER (AVG. CW WATTS) ± 0.75 17 100 OPERATING TEMPERATURE -55° - +85° C PACKAGE OUTLINE / TAPE AND REEL ORIENTATION DIRECTION OF FEED PAD 1 P P0 K 1 0 "A" "A" B0 W MARKED SIDE UP .070 A0 SECTION "A"-"A" W P1 P0 A0 B0 K0 ENGLISH (in) 1.2598 0.6299 0.1575 0.3598 0.5697 0.0799 METRIC (mm) 32.00 16.00 4.00 9.14 14.47 2.03 THE MULTI-MIX MICROTECHNOLOGY® GROUP IS ISO 9001:2000 REGISTERED U.S. Patent 6,099,677 and other Patents Pending. Merrimac Industries / 41 Fairfield Place, West Caldwell, NJ 07006 Tel: 1.888.434.MMFM / Fax: 973.882.5990 / Email: [email protected] / www.merrimacind.com COUPLING INSERTION LOSS 0.5 -7.5 0.4 -8 Insertion Loss (dB) Coupling (dB) -8.5 -9 -9.5 -10 -10.5 -11 0.2 0.1 0 -0.1 -0.2 -0.4 -12 -0.5 -12.5 1000 0.3 -0.3 -11.5 1100 1200 1300 1400 1500 1600 Frequency (MHz) 1700 1800 1900 1000 2000 1100 1200 1300 1400 1500 1600 Frequency (MHz) 1800 1900 2000 0 1.45 -5 1.4 -10 Directivity (dB) 1.35 Port 1 Port 2 Port 3 Port 4 1.3 1.25 1.2 1.15 1.1 -15 -20 -25 -30 -35 -40 1.05 1 1000 1700 DIRECTIVITY VSWR 1.5 VSWR CSD-10H-1.5G TYPICAL PERFORMANCE -45 1100 1200 1300 1400 1500 1600 1700 1800 1900 -50 1000 2000 1100 1200 1300 Frequency (MHz) 1400 1500 1600 Frequency (MHz) 1700 1800 1900 MOUNTING CONFIGURATION 50 OHM LINE .032 DIELECTRIC THICKNESS ER= 3.38 Ground plane of unit should be soldered to ground plane of circuit board for optimum performance 0.447 [11.35] 0.034 typ. [0.86] 0.351 [8.91] GROUND VIAS PLATED THRU 0.050 [1.28] 0.250 [6.35] 0.0630 [1.60] GROUND PLANE 0.068 [1.73] TRUTH TABLE 1 2 3 4 1 Input Output Isolated Coupled 2 Output Input Coupled Isolated 3 Isolated Coupled Input Output 4 Coupled Isolated Output Input Merrimac Industries / 41 Fairfield Place, West Caldwell, NJ 07006 Tel: 1.888.434.MMFM / Fax: 973.882.5990 / Email: [email protected] / www.merrimacind.com 2000