Model: TD-3D8G4D6G-CD-SMF


PMI Model No. TD-3D8G4D6G-CD-SMF is a high speed threshold detector designed to operate over the 3.8 to 4.6GHz frequency range.  It has an external adjustment to vary the threshold level from -20dBm to 0dBm and a typical VSWR of 2.6:1.  The unit is supplied with removable SMA(M-In/F-Out) connectors in a housing that measures 0.85" x 0.63" x 0.20".

Quick Links: (click the links below for additional information)

Product Feature

Test Report

Unit Data




Frequency Range 3.8 to 4.6GHz
VSWR 2.6:1 typ
Dynamic Range -20dBm to +10dBm
Threshold Variation (With Frequency) +/-0.75dB max
Propagation Delay 10ns typ, 3dB above threshold setting
(50% RF input to 50% logic at -10dBm)
Minimum Pulse Width 50ns typ
Output TTL "1" Input Power > Threshold Setting
TTL "0" Otherwise
Temperature Stability 1.0dB typ
3dB above threshold setting
Threshold Setting Control External Voltage
0 to +5V
Threshold Level Setting Range -20dBm to 0dBm
Input Power 100mW CW max
Power Supply +/-5V @ 100mA typ
  RF Input Removable SMA(M)
  TTL Output Removable SMA(F)
  Threshold Adjust Solder Pin
Size 0.85" x 0.63" x 0.20"

Environmental Ratings:

Temperature:  -55ºC to +95 ºC Operating
 -65 ºC to +125 ºC Non-Operating
 Humidity:  MIL-STD-202F, Method 103B Cond. B
 Shock:  MIL-STD-202F, Method 213B Cond. B
 Vibration:  MIL-STD-202F, Method 204D Cond. B
 Altitude:  MIL-STD-202F, Method 105C Cond. B
 Temperature Cycle:  MIL-STD-202F, Method 107D Cond. A