Preliminary Product Listing

Model: SDLVA-218-68-70MV

 

PMI Model No. SDLVA-218-68-70MV is a CW immune SDLVA (Successive Detection Log Video Amplifier). This unit operates from 2.0 to 18.0 GHz. It has the ability to interface with a long cable (100 ft.), while maintaining high speed, flatness, and accuracy.


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Product Feature

Specifications:

Frequency Range 2.0 to 18.0 GHz
Frequency Flatness ±2.0 dB max.
Signal Capability Pulse (100 ns - 300 usec), Pulse on CW
Input VSWR 2.2:1 max.
Max Input Level 1 Watt CW, 100 Watt Peak @ PW = 1 us & 1% Duty Cycle
Pulse Peak Amplitude Loss

CW Level: -50 dBm: No Loss, -40 dBm: 2.5 dB max.

TSS -70 dBm
Log Dynamic Range -68 to 0 dBm
Log Slope 70 ± 3 mV/dB
Log Linearity ±1.5 dB max. at 25ºC and Frequency Range
Video Output Range

-68 dBm: 250 mV ± 125 mV

DC Offset 0 - 100 mV typ.
Noise Level 200 mV P-P (Bright Band Noise) Without RF
Log Accuracy From 70 mV/dB ±2 dB max. at 25ºC and Frequency Range
Absolute Accuracy From 70 mV/dB ±2.5 dB max. at Full Temperature and Frequency Range
Output Rise Time 25 ns typ., 28 ns max.
Settling Time

50 ns max., 10% output to ±0.5 dB of final value at pulse peak ower -40 & -10 dBm

Falling Time 300 ns max., 90% output to 10% at pulse peak power -40 & -10 dBm
Recovery Time

500 ns max., measured from edge of 10 microsecond

Pulse to leading edge of next 10 microsecond

Pulse to within 1 dB of baseline pulse peak power at (300 us, 0 dBm), and accept following small pulse (100 ns, -65 dBm) without pulse droop

Pulse Width Range 100 ns to 300 us
Video Output Drive Through 100 ft., 75 Ohms Cable (RG11) & 75 Ohm Load
Video Output @ -68 dBm 250 mV ± 140 mV
Power Supply

+15 VDC @ 500 mA max., 100 mV Ripple DC to 10 MHz

-15 VDC @ 200 mA max., 100 mV Ripple DC to 10 Mhz

Operating Temperature 0ºC to +85ºC
Size 3.5" x 2.5" x 0.5"
Finish Painted Blue
Cooling Conduction Cooling at Mounting Surface
Pulse Density Capability 20% duty for PW = 100 ns; 70% duty for PW = 300 us at 0 dBm with 1 dB pulse amplitude loss and baseline variable
Pulse Droop 70 mV max. @ -68 dBm, 300 us PW
Propagation Delay 80 ns max. from 50% RF to 10% video excluding video cable
CW Immune Power Range TSS to -40 dBm
Baseline Shift @ -40 dBm 200 mV max.
Pulse Amplitude Loss No Loss @ Pulse @ CW -50 dBm, Pulse Power @ -30 dBm, 2 dB Loss @ CW -40 dBm, Pulse Power @ -30 dBm with 500 MHz difference in frequency between pulse and CW
CW Immune Time @ CW = -40 dBm 3.5 ms max.
CW Recovery Time @ CW = -40 dBm 100 us max.

Environmental Ratings:

 Stabilization Bake  24 hours @ +85ºC
 Thermal Shock  10 cycles 0 to +85ºC, 1 hour dwell time temperature change 15ºC per minute
 Random Vibration  20 Hz to 2000 hZ, Randon @ 16.8 Grms, In all 3 axis for 15 minutes min.
 Burn-In  48 Hours with DC Power @ +85ºC
 Temperature Cycle:  MIL-STD-202F, Method 107D Cond. A