Wireless Door Bell

A Wireless Door Bell is door bell solution without the need of wired routing from the Tx to the Rx. As a battery powered solution, the wireless door bell requires ultra low power consumption while it should achieve long transmission distance. The traditional solution on the Tx side for this Application is to use SAW and RF Transistors, powered by 12V 23A battery. the shortages for this application are:

CMT2150A and CMT2210A are extremely suitable for the wireless door bell application with the following reason: