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Analog Devices Inc. ADMV8502 Digitally Tunable Band-Pass Filters

Analog Devices ADMV8502 Digitally Tunable Band-Pass Filters provide a digitally selectable frequency of operation. The filter center frequency (fCENTER) can be adjusted from 90MHz to 225MHz using an 8-bit value (256 states) incorporating a patented calibration technique. The typical 3dB bandwidth is 9%, and adjustability is ±2%. Insertion loss is typically 3.5dB, and the 20dB rejection is 17% away from fCENTER, ideally suited for minimizing system interferers.

The ADI ADMV8502 tunable filter can be used as a smaller alternative to large switched filter banks and discrete component-based tunable filters, and the ADMV8502 supplies a dynamically adjustable solution in advanced communications applications.

Features

  • Digitally tunable, octave, band-pass tuning
  • 3dB bandwidth of 9% ± 2%
  • Rejection (20dB) of 17% away from fCENTER
  • Single-chip replacement for discrete filter banks
  • Compact 10mm × 10mm LGA package

Applications

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

Block Diagram

Block Diagram - Analog Devices Inc. ADMV8502 Digitally Tunable Band-Pass Filters

Evaluation Board

Analog Devices Inc. EVAL-ADMV8502 Evaluation Board

Configured to evaluate the operation of the ADMV8502 digitally tunable band-pass filter (BPF).

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Published: 2024-05-07 | Updated: 2025-01-21