specifications subject to change without not ification. 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 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 attenuation model no. frequency range (ghz) range (db) steps (db) attenuation cells vswr (max) insertion loss (db max) accuracy (db max) dc-5 1.5 1.0 5-12.4 1.7 1.6 pa- 124 12.4-18 (optional) 0-15 1 1,2,4,8 1.9 2.0 +/-.5 per cell dc-5 1.5 0.8 5-12.4 1.7 1.3 pa- 125 12.4-18 (optional) 0-70 10 10, 20, 40 1.8 1.6 +/-1.0 per cell control power: 12 vdc at 185 ma nominal per cell 28 vdc at 108 ma nominal 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. pulse latching: optional to designate the attenuator desired use : (1) ?124?, ?125? for model number (4) ?tl? for ttl driver if desired. (2) ?h? for 12 vdc or ?d? for 28 vdc (3) ?l? for pulse latching (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 87
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