Series SA-26 Switched-Bit Attenuators 2-6 GHz Specifications

                                               
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Application Notes for Microwave Attenuators

PERFORMANCE CHARACTERISTICS
 

 MODEL

SA-26-1-25 SA-26-2-5  SA-26-3-1
Frequency Range, min (GHz) 2-6 (1)
2-6 (1)  2-6 (1)
Attenuation Range, min (dB) 25 (2) 15 (2) 7 (2)
Insertion Loss, max (dB)  2.0   2.5   3.2  
VSWR, max 1.8:1 1.8:1 1.8:1
Number of Bits 1 2 3
LSB (dB) 25 5
1  
Monotonicity Guaranteed 
Accuracy of Mean
 
Attenuation, max (dB)
±0.5
± 3
± 3  
Attenuation Flatness, max (dB) ± 1.0 dB
± 0.3 @ 0 dB to 10 dB
± 0.9 @ >10 dB to 15 dB
± 0.3
Power Handling, max (dBm) + 23 + 23
+ 23 
Switching Time, max (nsec) 30 30 30
Switch Rate, max (MHz) 4.0
4.0  4.0
Control Logic ‘1’ = I.Loss
‘0’ = Att.
 
Control Input True TTL Gate 
Power Supply Requirements +5V ± 2% @ 60 mA
-12V ± 2% @ 60 mA
+5V ± 2% @ 110 mA
-12V ± 2% @ 75 mA
+5V ± 2% @ 180 mA
-12V ± 2% @ 130 mA
Environmental Conditions  

Package Type

 DC 11  DC 12  DC 13
 
 
PERFORMANCE CHARACTERISTICS
 
 

 MODEL

SA-26-6-1 SA-26-7-1  SA-26-8-0.25
Frequency Range, min (GHz) 2-6(1)
2-6 (1)  2-6 (1)
Attenuation Range, min (dB) 63 (2) 81 (2) 63.75 (2)
 Insertion Loss, max (dB)  5.0   5.5   6.5
VSWR, max 2.0:1 2.0:1 2.0:1
Number of Bits 6 7 8
LSB, max (dB) 1 1
0.25
Monotonicity Guaranteed
Accuracy of Mean
Attenuation, max (dB)
±  0.5 @ 0dB to 15 dB
±  0.75 @>15dB to 31dB
± 1.0  > 31dB to 63 dB
±  0.5 @ 0dB to 21dB
± 1.0 @ >21dB to 41dB
± 1.5 @ >41dB to 81dB
±  0.5 @ 0dB to 21dB
± 1.0 @ >21dB to 41dB
± 1.5 @ >41 to 63.75dB
Attenuation Flatness, max (dB) ±  0.5 @ 0dB to 15dB
± 0.75 @ >15dB to 32dB
± 1.0 @ >32dB to 63 dB
±  0.5 @ 0dB to 21dB
± 0.75 @ >21dB to 41dB
± 1.25 @ >41dB to 81dB
±  0.5 @ 0dB to 21dB
± 0.75 @ >21dB to 41dB
± 1.25 @ >41 to 63.75dB
Power Handling, max (dBm) + 23 + 23
+ 23 
Switching Time, max (nsec) 30 100 100
Switch Rate, max (MHz) 4.0
4.0  4.0
Control Logic ‘1’ = I.Loss
‘0’ = Att.
‘1’ = I.Loss
‘0’ = Att.
‘1’ = I.Loss
‘0’ = Att.
 
Control Input TRUE TTL GATE
Power Supply Requirements +5V ± 2% @ 300 mA
+5V ± 2% @ 400 mA
+5V ± 2% @ 450 mA
Environmental Conditions

Package Type

DC 2 DC 17 DC 18
   

 

 

NOTES

  • Performance can be optimized for a narrower bandwidth
  • Attenuation range can be customized.
 
 PIN FUNCTIONS
PIN
Designations

SA-26-1-25 SA-26-2-5  SA-26-3-1
E1
E2
E3
E4
E5
E6
E7
E8
+ V
- V
G
25 dB
-
-
-
-
-
-
-
+ 5V
- 12V
GND
5 dB
10 dB
-
-
-
-
-
-
+ 5V
- 12V
GND
1 dB
2 dB
4 dB
-
-
-
-
-
+ 5V
- 12V
GND

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 Package TYPE & DIMENSIONS  
 
  Series SA-26 attenuator package type and dimensions diagram      Series SA-26 attenuator package type and dimensions diagram  
       
   Series SA-26 attenuator package type and dimensions diagram     Series SA-26 attenuator package type and dimensions diagram  
   Series SA-26 attenuator package type and dimensions diagram      Series SA-26 attenuator package type and dimensions diagram