PMP-3R Series ANALOG PHASE MODULATOR 10 to 500 MHz / Up to 10% Modulation Rate / Low Insertion Loss / High Sensitivity / Meri-Pac TM PRINCIPAL SPECIFICATIONS Model Number PMP-3R-***B Center Frequency, fo, MHz 10 - 500 RF Bandwidth 10% of fo For complete Model Number replace ** with desired Center Frequency, fo in MHz. General Notes: 1. The PMP-3R series of high frequency, voltage controlled phase modulators covers 10 to 500 MHz. Phase modulation is achieved by the application of a DC coupled signal between 0 and 15 volts and can have a rate up to 10% of the RF center frequency when driven from a low impedance source. 2. The modulating signal varies the capacitance of two varactor diodes which form part of a tuned LC circuit connected across the output ports of a 90° Quadrature Hybrid. The resulting reactance changes cause a shift in the insertion phase of an RF signal passed through the hybrid. A single unit provides more than 180° of phase shift, peak-to-peak. 3. The PMP-3R series of voltage variable phase modulators are designed for analog modulation of an RF carrier. For digital modulation, the JPP and BPP series of quadrature and bi-phase modulators are suggested. 4. Merrimac Phase Modulators are designed for high reliability and can be supplied screened to meet specific military and space applications. Meri-Pac R-Package NOTES: 1. Tolerance on 3 place decimals ± .010(.25) except as noted. 2. Dimensions in inches over millimeters. 3. Lead dimensions apply only at body. 4. All unmarked pins are case ground. GENERAL SPECIFICATIONS RF Characteristics Impedance: 50 Ω Phase Shift Range*: 0 to --180° min.@fo Insertion Loss: 2.0 dB max. Loss Variation vs. Vc: < 0.5 dB typ. VSWR: 1.6:1 max. Input Power: 0 dBm max.** Modulation Characteristics Impedance: 50 Ω Control Voltage, Vc: 0 to +15 V p-p max. Sensitivity: 0.2 Rad/Volt Avg. Modulation Rate: 10% of fo max. Weight, nominal: 0.32 oz. (9 g) Operating Temp: -- 55° to +85°C *In addition to insertion phase **Unit may be operated at +10 dBm in reduced control range of 1.5 - 15 V (+30 V no damage) Typical Transfer Characteristic 19Feb96 ForfurtherinformationcontactM ERRIM AC /41 Fairfield Pl.,W estCaldw ell,NJ,07006 / 973-575-1300 /FAX 973-575-0531