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, optional TTL drivers, and a choice of frequency ranges.
Specifications
PA–1–2–3–4–5
Model No. |
Frequency Range (GHz) |
Attenuation |
Attenuation Cells |
VSWR (Max) |
Insertion Loss (dB Max) |
Accuracy (dB Max) |
|
Range (dB) |
Steps (dB) |
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PA-124 |
DC-5 |
0-15 |
1 |
1,2,4,8 |
1.5 |
0.6 |
+/-.5 per cell |
5-12.4 |
1.7 |
1.0 |
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12.4-18(optional) |
1.9 |
1.3 |
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PA-125 |
DC-5 |
0-70 |
10 |
10, 20, 40 |
1.5 |
0.5 |
+/-1.0 per cell |
5-12.4 |
1.7 |
0.8 |
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12.4-18 (optional) |
1.8 |
1.0 |
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Power Rating: 1 watt 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: “124”, “125” for model number 2: “H” for 12 VDC or “D” for 28 VDC 3: “L” for pulse latching 4: “TL” for TTL Driver |
5: “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.
Outline Drawing
