 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| CSD-20N-0.45G DIRECTIONAL COUPLER REV: 001, 05/26/05 TECHNICAL DESCRIPTION FEATURES * 380 - 520 MHz * LOW LOSS * HIGH DIRECTIVITY * EXCELLENT COUPLING ACCURACY * SURFACE MOUNT APPLICATIONS * LAND MOBILE RADIO (LMR) SYSTEMS * RADAR COMMUNICATIONS * CDMA 450 BASE STATION RF SUBSYSTEMS * TV TRANSMITTERS The Multi-Mix(R) CSD series provides 20 dB coupling at 450 MHz. The CSD 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 CSD series is also ideal for use in RF sampling networks and control circuitry in high power transmitters. CSD 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) 380 - 520 INSERTION LOSS (dB MAX) 0.25 MEAN COUPLING (dB) 20 1.0 VSWR (MAX, ALL PORTS) 1.15:1 FREQUENCY SENSITIVITY (dB MAX) DIRECTIVITY ( dB MIN) AVERAGE POWER (WATTS, MAX.) RF INTERFACE OPERATING TEMPERATURE 0.30 16 250 Leadless Surface Mount -55 TO +85 C PACKAGE OUTLINE .650 .402 PORT 2 PORT 1 1 .480 CSD-20N-0.45G .192 2 3 .061 PORT 3 PORT 4 (R) 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: crm@merrimacind.com / www.merrimacind.com TYPICAL PERFORMANCE CSD-20N-0.45G Coupling -18 -18.5 -19 Coupling (dB) -19.5 -20 -20.5 -21 -21.5 -22 380 Insertion Loss(dB) 1 0.75 0.5 0.25 0 -0.25 -0.5 -0.75 -1 380 Insertion Loss 400 420 440 460 480 500 520 400 420 440 460 480 500 520 Frequency (MHz) Frequency (MHz) VSWR Port 1 1.5 -5 1.4 Directivity (dB) -10 -15 -20 -25 -30 380 1.3 1.2 1.1 1 380 Directivity Port 3 Port 4 0 Port 2 VSWR 400 420 440 460 Frequency (MHz) 480 500 520 400 420 440 460 Frequency (MHz) 480 500 520 MOUNTING CONFIGURATION GROUND PLANE OF UNIT SHOULD BE SOLDERED TO GROUND PLANE OF CIRCUIT BOARD FOR OPTIMUM PERFORMANCE. 0.537 [13.64] GROUND PLANE S VIA H UND OUG GROD THR TE PLA 0.063 [1.60] 0.380 [9.65] 0.068 [1.73] 50 OHM LINE .032 DIELECTRIC THICKNESS ER = 3.38 TRUTH TABLE 1 1 2 3 4 Input Output Isolated Coupled 2 Output Input Coupled Isolated 3 Isolated Coupled Input Output 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 0.034 TYP. [0.86] 0.050 [1.27] 4 |
Price & Availability of CSD-20N-045G
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |