520 MHz to 1300 MHz, Digitally Tunable, Band-Pass Filter

The ADMV85131 is an RF band-pass filter that features a digitally selectable frequency of operation. The filter center frequency (fCENTER) can be adjusted from 520 MHz to 1300 MHz, using an 8-bit value (256 states) that incorporates a patented calibration technique.

The typical 3 dB bandwidth is 8.5% with narrow-band and wide-band options and adjustability is ±2%. Insertion loss is typically 5.5 dB, and the 20 dB rejection is 17% away from fCENTER, which is ideally suited for minimizing system interferers.

This tunable filter can be used as a smaller alternative to large switched filter banks and discrete component-based tunable filters, and this device provides 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: 8.5% ± 2%

* Rejection (20 dB): 17% away from fCENTER