Hopping Filters (Frequency Agile Filters)

The Frequency Agile Filters are controlled using an 8-bit parallel interface, allowing 251 tune words for frequency control. Tuning is initiated by a 1-to-0 transition of a separate digital input strobe. A power saving mode is initiated by sending a binary 255 command to the filter, which turns off all the diodes and minimizes current consumption by the digital components. The filter has 250 equally spaced steps across the tuning range. Digital addresses from 251 through 254 results in a high-isolation state for the filters. This sealed unit can also be adapted for custom configurations. Compact and very rugged, all of our products are 100% tested, and readily available. This component can be designed to your specifications.