GT Microwave
Ph. :   973-361-5700
Fax :   973-361-5722
Email :   sales@gtmicrowave.com
Home      About Us     Request for Quote     Representatives     Contact Us     Email this Page     Site Map  
Home Home  
Vector Modulators Vector Modulators  
Frequency Translator Vector Modulators  
Pulse Modulators Pulse Modulators  
BPSK Modulators BPSK Modulators  
QPSK Modulators QPSK Modulators  
Custom Devices Custom Devices  
Attenuators Attenuators  
Switches Switches  
Phase Shifters Phase Shifters  
Custom Sub-Assembly Custom Sub Assembly  
Featured Products Featured Products  
  Attenuators   DIGITALLY CONTROLLED ATTENUATORS:

G.T. Microwave Features:

Frequency Ranges: From 250 MHz to 24 GHz any optimized bandwidth is available.

TTL Compatible Logic: G.T.M.I.’s binary logic Digital to Analog Converter with 8 inputs: Logic’1’/BIT = 256 discrete values of attenuation or all Logic ‘0’ = Insertion Loss. Any resolution up to 12 Bits is available.

High Speed Switching: Attenuators listed are measured from any set value to any value. Switching speeds to 300 nSEC on request.

Low DC Power Consumption: Attenuators require ±15 VDC, ±1% @ +100/ -50mA.

Stable Attenuation: Variation vs Temperature from -55° to 85°C is typically ±10% of the set value. Temperature Compensated models are ±2%.

High RF Power Handling:
For power levels greater than listed, please consult factory.

Standard Interfaces: RF port connectors are ‘SMA’, female Per MIL -C-39012. Call factory for optional connectors.

Click here to view Outline Diagram

Size 'A' Dim IN/CM ‘B’ DIM IN/CM
‘C’ DIM IN/CM
‘D’ DIM IN/CM
1 3.00/7.62 2.50/6.35 2.750/6.985 2.250/5.715
2 & 3 2.00/5.08 2.50/6.35 1.750/4.445 2.250/5.715
4 3.00/7.62 3.13/7.94
2.750/6.985 2.875/7.303
5 4.75/12.07
4.50/11.43 4.500/11.430 4.25/10.795
POWER / LOGIC Connections
No.of BITS LOGIC PIN ASSIGNMENTS +15V PIN
-15V PIN
GND PIN
8 L.S.B @ 1 to M.S.B @ 8 13 14 15
10 L.S.B @ 1 to M.S.B @ 10
All Un-used pins have no internal connections
Electrical Specifications for – ALL – ANALOG ABSORPTIVE ATTENUATORS
FREQUENCY
RANGE
GHz
ATTENUATION
dB
FLATNESS
Vs FREQUENCY
MAX
INSERTION
LOSS
dB
V.S.W.R.
MAX
SWITCHING SPEED
HARMONIC DISTORT
INPUT POWER
SWITCHING SPEED HARMONIC DISTORT. INPUT POWER OUTLINE SIZE
0.5-2.0 32 ± 2.0 2.50 1.8:1 7.0 uSEC MAX
50 dBc MAX
+20 dBm MAX
1.0 uSEC MAX
30 dBc MAX
+5 dBm MAX
1
64 ±3.5
80 ±4.5
2.0-8.0 32 ±2.00 2.50 1.9:1 7.0 uSEC MAX
50 dBc MAX
+20 dBm MAX
1.0 uSEC MAX
35 dBc MAX
+13 dBm MAX
2
64 ±2.25
80 ±2.50
6.0–18.0 32 ±2.00 3.25 1.9:1 7.0 uSEC MAX
50 dBc MAX
+20 dBm MAX
1.0 uSEC MAX
35 dBc MAX
+15 dBm MAX
3
64 ±2.25
80 ±2.50 3.50 2.0:1
2.0-18.0 32 ±2.50 4.50 2.0 : 1 7.0 uSEC MAX
50 dBc MAX
+20 dBm MAX
1.0 uSEC MAX
35 dBc MAX
+13 dBm MAX
2
64 ±4.50 4.50 2.1 : 1
80 ±5.00 5.00
0.7 - 5.4 32 +/- 3.5 3.5 2.0:1 7.0 uSEC MAX
50 dBc MAX
+20 dBm MAX
1.0 uSEC MAX
30 dBc MAX
+5 dBm MAX
4
64 +/- 4.5 3.5 2.0:1
80 +/- 5.0
3.5 2.2:1
0.225 - 2.0
32 +/- 3.5 dB 4.5 dB 2.0:1 7.0 uSEC MAX
50 dBc MAX
+20 dBm MAX
1.0 uSEC MAX
30 dBc MAX
+5 dBm MAX
5
64 +/- 6.0 dB 4.5 dB 2.0:1
80 +/- 8.0 dB 4.5 dB 2.0:1
8.0–26.5 32 ±2.25
3.0dB
2.0:1
7.0 uSEC MAX
50 dBc MAX
+20 dBm MAX
1.0 uSEC MAX
35 dBc MAX
+15 dBm MAX
3
16.0–32.0 32 ±3.0
4.0dB
2.0:1
7.0 uSEC MAX
50 dBc MAX
+20 dBm MAX
1.0 uSEC MAX
35 dBc MAX
+15 dBm MAX
3
For substantial improvement in performance; ask for OPTIMIZED NARROWBAND models

G.T.Microwave, Inc. 1-973-361-5700 fax: 1-973-361-5722