VMM-2D Series VECTOR I&Q MODULATOR 2.5 to 6.5 GHz / High Rate Analog QPSK for MSK Systems / Excellent Phase & Ampli. Bal. / SMA Typical Magnitude/Phase Plot at 2500 MHz State 1 2 3 4 5 6 7 8 Data Input (mA) I Q 4.5 0 3.18 3.18 0 4.5 -3.18 3.18 -4.5 0 -3.18 -3.18 0 -4.5 3.18 -3.18 Ins. Loss dB -9.2 -9.3 -9.3 -8.8 -9.3 -9.6 -9.6 -9.0 PRINCIPAL SPECIFICATIONS Phase Abs. Bal. 0 0 45.2 0.2 91.3 1.3 134.5 0.5 177.8 2.2 -135.8 0.8 -88.4 1.6 -43.7 1.3 Model Number RF/LO Center Freq., fo, GHz VMM-2D-****B 2.5 to 6.5 RF/LO Bandwidth, MHz 10% of fo For complete Model Number replace ****with desired center frequency, fo in MHz D-Package Outline GENERAL SPECIFICATIONS RF Input: Modulation Inputs: VSWR: Impedance: Insertion Loss (Below modulation Input): +10 dBm nom. 0 dBm max. 2.0:1 max. 50Ω nom. 12 dB max. Modulation Accuracy (measured @ 4 quadrants, 0 dBm input) Amplitude Balance: Phase Balance: Weight, nominal: 1 dB ± 5° 3 oz (84 g) Operating Temp: -- 55° to +85°C General Notes: NOTES: 1. Tolerance on 3 place decimals ±.030(.76) except as noted. 2. Dimensions in inches over mm. 1. A vector modulator is used to phase modulate an RF carrier with complex analog signals. 2. Merrimac Vector Modulators consist of a quadrature hybrid and an in-phase power divider. 3. Units in the VMM-2D series are capable of modulating the carrier at up to 10% of the RF bandwidth. 4. These units comply with 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. 09Jul96 ForfurtherinformationcontactM ERRIM AC /41 Fairfield Pl.,W estCaldw ell,NJ,07006 / 973-575-1300 /FAX 973-575-0531