Data Sheet

ADMV8505

225 MHz to 520 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): 19% 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 ADMV85051 is an RF band-pass filter that features a digital-

ly 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%. Inser-

tion 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 tuna-

ble filters, providing a dynamically adjustable solution in advanced

communications applications.

FUNCTIONAL BLOCK DIAGRAM

Figure 1. Functional Block Diagram

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