CBG-B Series 3-PORT DIRECTIONAL COUPLERS 5 to 2000 MHz / 10 dB & 20 dB Models / Multi-Octave Units / Low Profile Surface Mount Package PRINCIPAL SPECIFICATIONS Model Number Frequency Range, MHz Performance Bandwidth, MHz ¤ Coupling dB, Nom. Frequency Sensitivity, dB, Max. Directivity, dB, Min. 5 - 750 5 - 750 5 - 750 5 - 750 10 - 400 100 - 2000 500 - 1000 100 - 2000 500 - 1000 10 ± 1.0 20 ± 1.0 20 ± 1.0 11 ± 1.0 11 ± 1.0 20 ± 1.0 20 ± 1.0 ± 0.5 ± 0.75 ± 0.5 ± 0.5 ± 0.5 ± 0.5 ± 0.5 20 18 20 15 15 15 15 CBG-10B-375 CBG-20B-375 CBG-11B-1250 100 - 2000 CBG-20B-1250 100 - 2000 ¤ Coupling is Referenced to the Input *Insertion Loss, dB, VSWR Max. Max. 1.3 1.0 0.6 1.5 1.2 1.5 1.2 1.5:1 1.5:1 1.3:1 1.7:1 1.5:1 1.7:1 1.5:1 * Insertion Loss excludes Coupling Loss General Notes: 1. Directional couplers find applications in monitoring of incident and reflected power, sampling for control loops as well as signal injection devices in BITE systems. 2. These Directional Couplers are 3 port devices with one port internally terminated. They also may be used back-to-back as Dual Directional Couplers, or ordered with both coupled ports available, as Bi-Directional Couplers in the CRG-B series. 3. Optional performance characteristics for this series include frequencies up to 2.5 GHz, coupling from 5 to 30 dB, close tolerance coupling and more. GENERAL SPECIFICATIONS Impedance: CW Input: Weight, nominal: Operating Temperature: 50 Ω nom. 1 W max. 0.1 oz (2.8 g) -- 55° to +85°C Surface Mount B-Package Outline Pin Function 1 2 3 4 Input Output Internal Termination Forward Coupling NOTES: 1. Tolerance on 3 place decimals ±.010(.25) except as noted. 2. Dimensions in inches over millimeters. 3. Dimensions marked with * apply only at body. 4. All unmarked pins are case ground. 26Apr96 For further information contact MERRIMAC / 41 Fairfield Pl., West Caldwell, NJ, 07006 / 973-575-1300 / FAX 973-575-0531