Programmable Step
Attenuators
RLC Electronics’ PA Series Attenuators are binary
Programmable Step Attenuators designed to operate
from DC to 20 GHz. Two basic models offer
attenuation ranges of 15, and 70dB. Control is in
standard format: 1-2-4-8, etc. The attenuators are
available with failsafe or latching operation, 12 or 28
volt coils and optional TTL drivers, with a choice of
frequency ranges.
Specifications
PA-
1-2-3-4-5
Model
No.
PA-
124
Frequency Range
(GHz)
DC-5
5-12.4
12.4-20
(optional)
DC-5
5-12.4
12.4-20
(optional)
Attenuation
Range
Steps
(dB)
(dB)
0-15
1
Attenuation
Cells
1,2,4,8
VSWR
(Max)
1.5
1.7
1.9
1.5
1.7
1.8
Insertion
Loss
(dB Max)
1.0
1.6
2.0
0.8
1.3
1.6
Accuracy (dB
Max)
+/-.5
per cell
PA-
125
0-70
10
10, 20, 40
+/-1.0
per cell
Power Rating:
2 watts average at 25 deg C
Impedance:
50 ohms
Life:
1,000,000 operations
Connectors:
SMA Female
Switching Speed:
15 milliseconds max.
Control
Power:
12 Vdc at 185 mA nominal per cell
28 Vdc at 108 mA nominal per cell
Pulse Latching:
Optional
To designate the attenuator desired use:
(1)
(2)
(3)
“TL” for TTL Driver if desired.
“5” for DC-5 GHz, “12” for DC-12.4 GHz, “18” for DC-18 GHz,
“20” for DC-20 GHz , “48” for 4-8 GHz, “812” for 8-12.4 GHz,
“1218” for 12.4-18 GHz option
Example: PA-125-D-TL-1218 is a 0-70 dB, 12-18 GHz programmable step attenuator with 10 dB steps, 28 volt coil, and
TTL drivers.
“124”, “125” for model number
“H” for 12 VDC or “D” for 28 VDC
“L” for pulse latching
(4)
(5)
OUTLINE DRAWING
Specifications subject to change without notification.
Tolerances unless otherwise specified are .xx +/- .02, xxx +/- .005
Specials requiring closer tolerances, different frequency ranges, special connectors,
different materials, finishes, etc. can be furnished upon request.
RLC ELECTRONICS, INC.
83 Radio Circle, Mount Kisco, New York 10549 Telephone 914-241-1334 Fax 914-241-1753
e-mail:
sales@rlcelectronics.com
www.rlcelectronics.com
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