Data Sheet

ADMV8502

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

Rev. 0

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FEATURES

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Digitally tunable, octave, band-pass tuning

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3 dB bandwidth: 9% ± 2%

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Rejection (20 dB): 17% away from fCENTER

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Single chip replacement for discrete filter banks

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Compact 10 mm × 10 mm LGA package

APPLICATIONS

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Land mobile radios

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Test and measurement equipment

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Military radars and electronic warfare and electronic counter-

measures

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Satellite communications

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Industrial and medical equipment

GENERAL DESCRIPTION

The ADMV85021 is an RF band-pass filter that features a digitally

selectable frequency of operation. The filter center frequency (fCEN-

TER) 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.

FUNCTIONAL BLOCK DIAGRAM

Figure 1. Functional Block Diagram

1 Protected by U.S. Patent Number 11201600B1.