225 MHz to 520 MHz, Digitally Tunable, Band-Pass Filter

The ADMV85051 is an RF band-pass filter that features a digitally selectable frequency of operation. The filter center frequency (fCENTER) can be adjusted from 225 MHz to 520 MHz using an 8-bit value (256 states) that incorporates a patented calibration technique.

The typical 3 dB bandwidth is 9%, and adjustability is ±2%. Insertion loss is typically 4.5 dB, and the 20 dB rejection is 19% away from the fCENTER, which is ideally suited for minimizing system interferers.

The ADMV8505 tunable filter can be used as a smaller alternative to large switched filter banks and discrete component-based tunable filters, providing a dynamically adjustable solution in advanced communications applications.

Applications

* Land mobile radios

* Test and measurement equipment

* Military radars and electronic warfare and electronic countermeasures

* Satellite communications

* Industrial and medical equipment

* Digitally tunable, octave, band-pass tuning* 3 dB bandwidth: 9% ± 2%* Rejection (20 dB): 19% away from fCENTER* Single chip replacement for discrete filter banks* Compact 10 mm × 10 mm LGA package