Model No. PMA-218-LSP


PMI Model No. PMA-218-LSP is a modulator amplifier capable of amplitude modulation, level control and pulse modulation for an RF stimulus path that works from 0.5 to 2.0GHz and 2.0 to 18.0GHz.  This integrated module contains switches, modulators, attenuators and amplifiers and is built using MIC/MMIC technology.

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Product Feature

Functional Block Diagram



Frequency Range

(J2 to J3) 2.0 to 18.0GHz

(J1 to J3) 0.5 to 2.0GHz

Power Output at 1.0dB Compression
(Fendamental) into a 1.5:1 maximum
VSWR (any phase)

+13.0dBm min

Third Order Intercept Point(output) +23.0dBm min
RF Input Power +14.0dBm max
RF Output Power +6.0±2.0dBm withc 5.0dB attenuation in the leveling attenuator and with an RF Input of +12.0dBm
Pulse Modulation Depth

60.0dBc min

RF Pulse Width Range 200 nanoseconds to 100 microseconds
RF Pulse Rise Time (10% to 90%) 10 nsec max
RF Pulse Fall Time (90% to 10%) 15 nsec max
RF Pulse Repetition Interval 1 microsecond to 6 milliseconds
RF Pulse Distortion ±2.0dB max variation
Pulse/CW Differential 0.3dB max variation
Pulse Width Fidelity ±20nsec max deviation
(between square law detected RF output pulse 50% points and control input 50% points)
Level Modulator (Mod A) 0.0 to 60.0dB min
Level Modulator Accuracy

±0.5dB (0.0 to 10.0dB)
±1.0dB (10.1 to 20.0dB)

±1.5dB (20.1 to 40.0dB)

±2.0dB (40.1 to 60.0dB)

Sensitivity 6dB/volt
Amplitude Modulator Depth (Mod B) 0.0 to 60.0dB min
Amplitude Modulator Depth Accuracy

±0.5dB (0.0 to 10.0dB)
±1.0dB (10.1 to 20.0dB)

±1.5dB (20.1 to 40.0dB)

±2.0dB (40.1 to 60.0dB)

Amplitude Modulation Rate 1.0Hz to 2.0kHz
Noise Figure TBD dB max
Harmonics at P1dB -20.0dBc min
Spurious Outputs -60.0dBc min
Measure from 0.5 to 18.0GHz
VSWR(RF Input) 1.8:1 max (Ref to 50Ohms)
1.8:1 max (Ref to 50Ohms)
Bias Voltages/Currents +15VDC
Size 4.0" x 3.0" x 0.8"



Temperature:  -20°C to +65°C (Operating)
 -40°C to +71°C (Storage)
Humidity  MIL-PRF-28800F, PAR, Class 1

 MIL-PRF-28800F, PAR, Class 1

Vibration  MIL--PRF-28800F, PAR4., Class 1
Altitude  Up to 15,000 Feet (Operating)