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| JPF-21F Series QUADRAPHASE MODULATORS Units to 3 GHz / High Data Bandwidth / Differential ECL/TTL Compatible Drive / Hi-Rel Package PRINCIPAL SPECIFICATIONS Model Number JPF-21F-***B Center Frequency, fo, MHz 1200 - 2500 RF Amplitude Input Balance at, Bandwidth dB, Max. 10% of fo 1.0 Phase Balance at Center, fo Typ. Max. 2 5 Phase Balance at 10% Band Limits Typ. Max. 2 5 Insertion Loss, dB, Max. 10 For complete Model Number replace *** with desired Center Frequency, fo in MHz. General Notes: 1. Units in the JPF-21F series of Quadraphase Modulators are composed of two biphase modulators, a 90 quadrature hybrid and an in-phase power combiner. 2. These devices are generally used in systems to generate QPSK coded signals. The units accept two differential data inputs each of which independently biphase modulates an RF carrier. These are then combined to produce a quadraphase output of 0, 90, 180 and 270 degrees. Differential drive allows easy interface with ECL/TTL drivers. 3. Units in the JPF-21F series are available from stock with a 1500 and 2500 MHz center frequency and from 1500 to 3000 MHz for special orders. 4. Merrimac Quadraphase Modulators comply with the relevant sections of MIL-M-28837 and may be supplied screened for compliance with additional specifications for military and space applications requiring the highest reliability. GENERAL SPECIFICATIONS Impedance: 50 nom. VSWR: 1.5:1 max. RF Input Level: 0 dBm nom Data Bandwidth: >100 MHz nom. Data Signal Levels: Logic 1: +15 mA nom. Logic 0: -- 15 mA nom. Weight, nominal: 0.35 oz (10 g) Operating Temperature: -- 55 to +85C F-Size Flatpack Modulation Sequence Data Ports 1, 2 0, 0 ref. 0 1, 0 -- 270 1, 1 -- 180 0, 1 -- 90 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. 14Feb96 F rf t e if r to c n a tM ERRI AC /41 Faifel Pl,W estCal el,NJ,07006 / 201o ur h r n o ma in o t c M ri d . dw l 5751300 /FAX 201- 0531 575- |
Price & Availability of JPF-21F-2500B
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