https://devzone.nordicsemi.com/f/nordic-q-a/1706/suggestion-regarding-nrf51822-custom-pcb-designHi all. I am making a PCB for nRF51822. My PCB need is to talk with iPhone for BLE Proximity application. Also I need to control a LED from iPhone. And I need to get low power mode of the SOC to get a good battery (3V Coin Cell) life. Its my firsten-USTelligent Community 13Mon, 24 Feb 2014 14:52:42 GMThttps://devzone.nordicsemi.com/thread/7538?ContentTypeID=1Mon, 24 Feb 2014 14:52:42 GMT137ad170-7792-4731-bb38-c0d22fbe4515:823e6aea-64cb-4ba2-99f4-1a9969df32bcwlgrd<p>Questions are never silly, but I guess you could get better help if you contact the <a href="http://www.nordicsemi.com/eng/Support/Contact-Support-Team">Nordic Support team</a> for this issue.</p> <p>I don&#39;t know much about this, but I guess you will have problems putting high frequency components directly under your SoC. What R and C are you talking about, the ones going out to your antenna?</p> <p>You should also specify which exact size you want to obtain. I would advise you to start with putting your battery beneath the Soc, and you should be able to design the rest of the circuit on the top-side of your board.</p><div style="clear:both;"></div>