Telecoms, Datacoms, Wireless, IoT


Digitally tuneable bandpass filter bank

29 June 2022 Telecoms, Datacoms, Wireless, IoT

The AM3172 from Atlanta Micro is a tuneable bandpass filter module covering the 20 MHz to 8 GHz frequency range. The connectorised and shielded module contains the AM3150, AM3151, and AM3156 digitally tuneable filter components. Control of the tuneable frequency is via a three-wire serial peripheral interface (SPI). Both the low- and the high-bandwidth of the bandpass filter are digitally adjustable. It has a 5 dB insertion loss and typical rejection ratio of 60 dB.

The AM3172 module measures 61 x 53 mm and is an excellent front-end preselector for a receiver, providing both low insertion loss and valuable flexibility for tuning centre frequency and bandwidth.


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