PSEUDO AC COUPLED DETECTOR LOG AMPLIFIER (ERDLA)

ERDLA21802-31E-C

 

SPECIFICATIONS
Frequency Range 2 to 18 GHz Max Input Level: +20 dBm CW

Video Output Drive: Through 250 ft, 75 Ohm cable (RGI 1)

Droop: 70 mV max down to -65 dBm

Input VSWR: 2.3•.1 max

Frequency Flatness 3.5 dB Max
Signal Capability Pulse (100 ns to 300 us) Pulse on CW
CW Immunity Range -rss to -40 dBm<140mV BS
Peak Pulse Amplitude

Loss

CW and pulse peak amplitude levels,

-40dBm: 2.0 dB max

CW>-40dBm: stable pulse on CW

Power Supply: 15VDC @ 400mA max

-15VDC 150mA max

Operating Temp: -O to +850C
Finish: Per MIL-C-85285A, color: gray
TSS -72dBm for 15 MHz video bandwidth
Dynamic Range -66 dBm to 5 dBm Environmental Stress Screening, ESS

(1)               Stabilization Bake: 48 hrs at 850C.

(2)               Thermal Shock per MIL-T=STD-202 Method 107; -20 to +85 0C, 30 min dwell time at each temp; 15 sec transfer time; 10 cycles.

(3)               Temp Cycling: -20 to +85 0C, DC power on at 30 C/min; 10 cycles.

(4)               Random Vibration: 16.8 RMS in the axis (perpendicular to the mounting axis) for 15 min.

Log Slope 70      mV/dB
Log Linearity          250C ±1.0 dB max
Video Out -66 dBm 350 ± 140 mV
Output Characteristic DC offset: ±70 mV max,
Log Accuracy from 70 mV/dB ±1.75 dB max over Freq. Band

±2.0 dB max over Freq. & temp.

Output noise level 150 t-nv P.P.
Output Rise Time 25 nSec max
Settling Time 50 ns (10% output to ±0.5 dB of final value)
Recovery Time (±1.0 dB) 1 us typ measured from 90% trailing edge of pulse to next -60 dBm pulse eak
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