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<?xml-stylesheet type="text/xsl" href="https://devzone.nordicsemi.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>nRF52840 TX Power over operating temperatue range</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/50883/nrf52840-tx-power-over-operating-temperatue-range</link><description>Hi, 
 I working on the module developed based nRF52840. 
 I would like to clarify some doubts regarding the TX power of the chip. 
 The TX power value is higher at the temperatue extremes (i.e., @+85deg and -40deg) than than at 25deg. 
 Normally TX power</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Tue, 13 Aug 2019 09:33:10 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/50883/nrf52840-tx-power-over-operating-temperatue-range" /><item><title>RE: nRF52840 TX Power over operating temperatue range</title><link>https://devzone.nordicsemi.com/thread/203769?ContentTypeID=1</link><pubDate>Tue, 13 Aug 2019 09:33:10 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:1d86a652-0540-4115-a055-fb1b31278b12</guid><dc:creator>Kenneth</dc:creator><description>&lt;p&gt;I assume this is normal then, if you still have concerns you may ask for a design (schematic and layout) review in a separate case.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: nRF52840 TX Power over operating temperatue range</title><link>https://devzone.nordicsemi.com/thread/203585?ContentTypeID=1</link><pubDate>Mon, 12 Aug 2019 12:36:46 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:f555f2ea-0a03-4f1c-a72b-04cca276293d</guid><dc:creator>Aravindbalaji</dc:creator><description>&lt;p&gt;Yes, I measured with same settings. I have measured on about four or five&amp;nbsp;modules. All behave in similar way. Tx power higher&amp;nbsp;at temperature extereme than at nominal temperature&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: nRF52840 TX Power over operating temperatue range</title><link>https://devzone.nordicsemi.com/thread/203573?ContentTypeID=1</link><pubDate>Mon, 12 Aug 2019 12:13:28 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:fd99d5b0-dccc-4bda-bc96-bedc6ab6b168</guid><dc:creator>Kenneth</dc:creator><description>&lt;p&gt;Unfortunately I don&amp;#39;t have curve to share, but in general I can see from typical measurements that the output power is slightly higher on lower temperatures and slightly lower at higher temperatures. Averaged values over several samples show the same, however I don&amp;#39;t have the possibility (or time) to find if a&amp;nbsp;specific chips may differ from this. I assume you measure with the same output power setting, same channel and same supply voltage in your test setup.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>