1.25 GHz to 2.60 GHz Digitally Tunable Band-Pass Filter

The ADMV8526 is an RF band-pass filter that features a digitally selectable frequency of operation. The filter center frequency (fCENTER) can be adjusted from 1.25 GHz to 2.60 GHz, using an 8-bit value (256 states) that incorporates a patent pending interpolation technique.

The typical 3 dB bandwidth is 9% and adjustability is ±2%. Insertion loss is typically 4 dB, and the 20 dB rejection is 16% 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 this device provides a dynamically adjustable solution in advanced communications applications.

* Digitally tunable, octave, band-pass tuning

* 3 dB bandwidth: 9% ± 2%

* Rejection (20 dB): 16% away from fCENTER