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| CSDZ-10H-0.9G DIRECTIONAL COUPLER REV: 002, 10/09/06 TECHNICAL DESCRIPTION FEATURES * 800 - 1000 MHz * LOW LOSS * HIGH DIRECTIVITY * EXCELLENT COUPLING ACCURACY * SURFACE MOUNT The Multi-Mix(R) CSDZ series provides 10 dB coupling at 900 MHz. The CSDZ series features accurate coupling factors, low VSWR, and high directivity. Very low insertion loss and high power handling capability make this series ideal for use in base station power amplifiers particularly in the main loop of the feedforward amplifiers. The CSDZ series is also ideal for use in RF sampling networks and control circuitry in high power transmitters. CSDZ directional couplers are based on fusion bonded multilayer stripline structures. The fusion bonding process yields homogeneous monolithic dielectric structures with reliability, ruggedness, and electrical and thermal performance that are superior to conventional adhesive bonding techniques. GENERAL SPECIFICATIONS FREQUENCY RANGE (MHz) 800 - 1000 INSERTION LOSS (dB MAX) 0.14 MEAN COUPLING (dB) 10 0.6 VSWR (MAX, ALL PORTS) 1.15:1 FREQUENCY SENSITIVITY (dB MAX) DIRECTIVITY ( dB MIN) AVERAGE POWER (WATTS, MAX.) RF INTERFACE OPERATING TEMPERATURE 0.15 22 250 Leadless Surface Mount -55 TO +95 C PACKAGE OUTLINE/ TAPE & REEL ORIENTATION DIRECTION OF FEED .560 [14.224] PORT 2 PORT 1 P 0 P PAD 1 1 K 0 "A" W "A" B0 .350 [8.890] CSDZ-10H-0.9G .040 [1.016] TYP. MARKED SIDE UP PORT 3 .059 [1.499] TYP. PORT 4 .067 [1.702] P P0 A0 B0 K0 1 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 W A0 SECTION "A"-"A" THE MULTI-MIX MICROTECHNOLOGY GROUP IS ISO 9001:2000 REGISTERED U.S. Patent 6,099,677 and other Patents Pending. (R) Merrimac Industries / 41 Fairfield Place, West Caldwell, NJ 07006 Tel: 1.888.434.MMFM / Fax: 973.882.5990 / Email: crm@merrimacind.com / www.merrimacind.com TYPICAL PERFORMANCE CSDZ-10H-0.9G Coupling -8 -8.5 Insertion Loss(dB) -9 Coupling (dB) -9.5 -10 -10.5 -11 -11.5 -12 800 Insertion Loss 0.5 0.4 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 820 840 860 880 900 920 Frequency (MHz) 940 960 980 1000 -0.5 800 820 840 860 880 900 920 Frequency (MHz) 940 960 980 1000 VSWR Port 1 1.5 1.4 1.3 1.2 1.1 1 800 Directivity Port 3 Port 4 0 -5 -10 Directivity (dB) -15 -20 -25 -30 -35 -40 -45 -50 800 820 840 860 880 900 920 Frequency (MHz) 940 960 980 1000 Port 2 VSWR 820 840 860 880 900 920 Frequency (MHz) 940 960 980 1000 MOUNTING CONFIGURATION 50 OHM LINE .032 DIELECTRIC THICKNESS ER= 3.38 0.447 [11.35] 0.034 typ. [0.86] GROUND VIAS PLATED THRU 0.050 [1.28] Ground plane of unit should be soldered to ground plane of circuit board for optimum performance 0.351 [8.91] 0.250 [6.35] 0.0630 [1.60] GROUND PLANE 0.068 [1.73] TRUTH TABLE 1 1 2 3 4 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: crm@merrimacind.com / www.merrimacind.com |
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