SWITCHABLE SUCCESSIVE DETECTION LOG AMPLIFIER (SDLA)

SDLA1128B
SPECIFICATIONS
Frequency Range 1 to 18 GHz Designed to meet the following Environmental Conditions:

 

Operating Case Temperature: -40 to +85°C

Storage Temperature:              -54 to +105°C

Mechanical Shock:      Per MIL-STD-202,

Method 213, Cond. B

Vibration:                     Per MIL-STD-202,

Method 214, Cond. E

Humidity:                     Per MIL-STD-202,

Method 103, Cond. B

Mechanical:      SMA connectors

Weight:              2.6 oz.

Volume:             0.77 cu in.

Material:           S303

Finish:               Gold Plating per MIL-G-45204B

 

Switchable DC Couple to cw immune.

•        CW Immunity Range:  TSS to -45 dBm

•         Pulse Response: 25 nsec to 100µ sec.

•        CW Baseline Shift:  100 mV  max.

•        Droop:  1.0 dB max. (from -65 to -35 dBm)

Switch Control Function

1-  TTLC has no connection : DC couple

2-  TTLCO: DC Couple (<0.4)

3-  TTLC1: Pseudo AC Couple (+3 to +5V)

_____________________________________

 

Base line noise: 50 MV RMS max

 

Dynamic Range -68 to +5 dBm
 

TSS

 

-70 dBm max

 

Input VSWR 

 

2.5:1 max

 

Rise Time

 

9 nsec typ 12 nsec max

 

Fall Time

 

12 nsec typ 20 nsec max

 

Recovery Time 

 

100 nsec max

 

Propagation Delay  

 

15 nsec max

 

Pulse Response

 

25 nsec cw

 

Log Accuracy

 

±1.5dB max (±2.0dB w. temp)

Video Output Drift over temp and dynamic range -0.04 dB/°C nom
 

Log Slope (into 100 ohm load)

 

50 ±5 mV/dB                       (1)

 

Power Supply

Operates ±12V  to ±15V

 

+12V at 360  mA  max

-12V at 100  mA  max

 

DC Offset

 

+100 ±75 mV                      (2)

 

Maximum Input Level

 +20 dBm
Flatness (video) ±2.5 dB max
Matching on each group over entire dynamic range ± 50 mV max

This product offers the following options:

(1)  Slope; 25 mV/dB to 75 mv/dB.   (2)  DC offset; -100 to +400 mv.

(3)         Switchable DC coupled to PSEUDO AC coupled or internally set to one of the above.

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