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| CSDZ-10H-2.5G DIRECTIONAL COUPLER REV: 001, 12/09/05 TECHNICAL DESCRIPTION FEATURES * 2300 - 2700 MHz * LOW LOSS * HIGH DIRECTIVITY * EXCELLENT COUPLING ACCURACY * SURFACE MOUNT The Multi-Mix(R) CSDZ series provides 10 dB coupling at 2500 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) 2300 - 2700 INSERTION LOSS (dB MAX) 0.20 MEAN COUPLING (dB) 10.1 0.5 VSWR (MAX, ALL PORTS) 1.20:1 FREQUENCY SENSITIVITY (dB MAX) DIRECTIVITY ( dB MIN) AVERAGE POWER (WATTS, MAX.) RF INTERFACE OPERATING TEMPERATURE 0.15 20 200 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" "A" B0 .350 [8.890] CSDZ-10H-2.5G .040 [1.016] TYP. W MARKED SIDE UP PORT 3 .059 [1.499] TYP. PORT 4 .060 [1.524] 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-2.5G Coupling -8 -8.5 -9 Coupling (dB) -9.5 -10 -10.5 -11 -11.5 -12 2300 Insertion Loss (dB) 0.5 0.4 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 -0.5 2300 2350 2400 2450 2500 2550 Frequency (MHz) 2600 2650 2700 Insertion Loss 2350 2400 2450 2500 2550 Frequency (MHz) 2600 2650 2700 VSWR 1.4 1.35 1.3 Directivity (dB) 1.25 VSWR 1.2 1.15 1.1 1.05 1 2300 Directivity Port 3 Port 4 0 -5 -10 -15 -20 -25 -30 -35 -40 2300 Port 1 Port 2 2350 2400 2450 2500 2550 Frequency (MHz) 2600 2650 2700 2350 2400 2450 2500 2550 Frequency (MHz) 2600 2650 2700 MOUNTING CONFIGURATION Ground plane of unit should be soldered to ground plane of circuit board for optimum performance 50 OHM LINE .032 DIELECTRIC THICKNESS ER= 3.38 0.447 [11.35] 0.034 typ. [0.86] 0.351 [8.91] 0.250 [6.35] GROUND VIAS PLATED THRU 0.050 [1.28] 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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