GENERAL DESCRIPTION
The ADMV85021 is an RF band-pass filter that features a digitally
selectable frequency of operation. The filter center frequency (fCENTER)
can be adjusted from 90 MHz to 225 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 3.5 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 the ADMV8502 provides a dynamically adjustable solution in
advanced communications applications.

FEATURES
► Digitally tunable, octave, band-pass tuning
► 3 dB bandwidth: 9% ± 2%
► Rejection (20 dB): 17% 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