Programmable Step
Attenuators
RLC Electronics’ PA Series Attenuators are
binary Programmable Step attenuators designed
to operate from DC to 18 GHz. Two basic
models offer attenuation ranges of 15, and 70
dB. 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
12.4-18
(optional)
DC-5
5-12.4
12.4-18
(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:
“TL” for TTL Driver if desired.
“5” for DC-5 GHz, “12” for DC-12.4
GHz, “18” for DC-18 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.
(1)
(2)
(3)
“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
87
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