GENERAL DESCRIPTION
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.

FEATURES
► 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

APPLICATIONS
► Land mobile radios
► Test and measurement equipment
► Military radars and electronic warfare and electronic countermeasures
► Satellite communications
► Industrial and medical equipment