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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>nRF7002 Isolated Metal Plane Question</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/121170/nrf7002-isolated-metal-plane-question</link><description>Hello! 
 I am working to design and build a custom PCB using the nRF7002 chip and came across this callout on the schematic diagram and wanted some clarification about it. The PCB that I am working on is using a much more compact form factor than the</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Tue, 06 May 2025 14:23:49 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/121170/nrf7002-isolated-metal-plane-question" /><item><title>RE: nRF7002 Isolated Metal Plane Question</title><link>https://devzone.nordicsemi.com/thread/534141?ContentTypeID=1</link><pubDate>Tue, 06 May 2025 14:23:49 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:4aa0844e-a3a5-446f-8406-173468beb2fb</guid><dc:creator>Bendik Heiskel</dc:creator><description>&lt;p&gt;Hi,&lt;/p&gt;
&lt;p&gt;The isolated part of the GND plane on L2 is for reducing noise from the buck converters and prevent it from spreading to other parts of the board.&lt;/p&gt;
&lt;p&gt;This is the part of the ground plane being referred to:&lt;/p&gt;
&lt;p&gt;&lt;img style="max-height:240px;max-width:320px;" src="https://devzone.nordicsemi.com/cfs-file/__key/communityserver-discussions-components-files/4/pastedimage1746541154047v3.png" alt=" " /&gt;&lt;/p&gt;
[quote user=""]3) If this component is used on a board with the nRF5340 or a similar device, will the entire panel require the solid plane or just the section under the nRF7002?[/quote]
&lt;p&gt;We recommend using the second layer as a GND plane, regardless of which SoC is being used. Traces can be routed on this plane as well, but the sections under the RF traces must be solid ground.&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;If you want more feedback on your design you can create a private ticket and share your schematic and layout files,&amp;nbsp; one of our HW engineers will give feedback on the design.&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Best regards,&lt;/p&gt;
&lt;p&gt;Bendik&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>