FEATURES
► Digitally tunable, multioctave, band-pass tuning
► 3 dB bandwidth: 9% ± 2%
► Low insertion loss: <4.5 dB typical
► Excellent rejection: 20 dB at 25% away from the fCENTER
► Great linearity (IP3): 40 dBm typical
► Single chip replacement for discrete solutions
► 32-terminal LGA

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

GENERAL DESCRIPTION
The ADMV80521
is a RF filter that features a digitally selectable
frequency of operation. The device has three band-pass filters
(BPFs) that span across three specified bands from 30 MHz to 520
MHz.
The center frequency (fCENTER) of operation can be adjusted using
an 8-bit value (256 states) that incorporates a patented interpolation
technique. The typical bandwidth (3 dB) is 9% and adjustability
is ±2%. The insertion loss is typically less than 4.5 dB and the
rejection is 20 dB at 25% away from the fCENTER, which is ideally
suited for minimizing system harmonics. Additionally, the flexible
architecture incorporates a bypass configuration with a low insertion
loss of <1 dB.
This tunable filter can be used as a smaller alternative to large
switched filter banks and cavity tuned filters, and this device provides a dynamically adjustable solution in advanced communications applications.