Crane Aerospace & Electronics Microwave Solutions JPF-21F SERIES – QUADRAPHASE MODULATORS TECHNICAL FEATURE FEATURES Units to 3 GHz High Data Bandwidth Differential EXL/TTL Compatible Drive Hi-Rel Package PERFORMANCE DESCRIPTION Center Frequency f0 ..................................... 1200-2500 MHz Units in the JPF-21F series of Quadraphase Modulators RF Input Bandwidth ..................................................10% of f0 are composed of two biphase modulators, a 90° Amplitude Balance at Center, f0 ..........................1.0 dB max, quadrature hybrid and an in-phase power combiner. Phase Balance at Center, f0...................... ±2° typ., ±5° max. These devices are generally used in systems to generate Phase Balance at 10% Band Limits ......... ±2° typ., ±5° max. QPSK coded signals. The units accept two differential Insertion Loss ....................................................13.5 dB max. data inputs each of which independently biphase Impedance ............................................................. 50 Ω nom. modulates an RF carrier. These are then combined to VSWR ...................................................... RF Input 1.5:1 max produce a quadraphase output of 0, 90, 180 and 270 VSWR ...................................................... RF Output 2:1 max degrees. Differential drive allows easy interface with RF Input Level .................................................... 0 dBm nom. ECL/TTL drivers. Units in the JPF-21F series are Data Bandwidth .............................................. 100 MHz nom. available from stock with a 1500 and 2500 MHz center Data Signal Levels............................... Logic 1:+15 mA nom. frequency and from 1500 to 3000 MHz for special orders. .............................................................. Logic 0:-15 mA nom. Merrimac Quadraphase Modulators comply with the Operating Temperature.................................... -55° to +85°C 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.. Crane Aerospace & Electronics Microwave Solutions – Merrimac Industries 41 Fairfield Place, West Caldwell, NJ 07006 + 1.973.575.1300 ext. 1309 [email protected] www.craneae.com/mw JPF21F.doc. This revision supersedes all previous releases. All technical information is believed to be accurate, but no responsibility is assumed for errors. We reserve the right to make changes in products or specifications without notice. Copyright © 2013 Crane Electronics, Inc. All rights reserved.