The NN-30-90-8-S02 from Pole/Zero is a Tunable Filter with Frequency 30 to 90 MHz, Bandwidth 4.8 MHz, Insertion Loss 4 dB, Supply Voltage 3.135 to 3.6 V, Operating Temperature -40 to 85 Degree C. Tags: Surface Mount, Digitally Controlled. More details for NN-30-90-8-S02 can be seen below.