https://devzone.nordicsemi.com/f/nordic-q-a/83900/nrf21540Can nrf21540 support all Nordic products (rf52832., nrf52840 and nrf52810)? Because nrf52832 and nrf52840 have different differential impedance specifications for the IC end of the antenna outlet, it is necessary to confirm whether nrf21540 will adjusten-USTelligent Community 13Mon, 24 Jan 2022 03:11:15 GMThttps://devzone.nordicsemi.com/thread/349109?ContentTypeID=1Mon, 24 Jan 2022 03:11:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e2d969e1-dad0-4f48-8946-f1f2c40099f2sky chen<p>Hi Ketijo,</p> <p><strong>Thank you for the quick reply.</strong></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/348901?ContentTypeID=1Fri, 21 Jan 2022 11:46:04 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5c97bdc5-0786-4781-97e9-f376367a8c39ketiljo<p>The nRF21540 can be used with all radios. The input just connects to the output of the matching network of the radio. The matching network will transform the impedance to 50 ohm where you can connect the nRF21540. Just combine the reference design of the radio with the nRF21540 reference design.</p><div style="clear:both;"></div>