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BenjaminDu
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Last seen: 9 months 6 hours ago
Joined: 2016-03-14 02:38
VDCDC voltage

Hi dialog,

 

My circuit as attached, it works well and it can transmit data when connected.

but I measured the voltage on Pin 31, it is 1.4V instead of something like 3.3V.

Can you hlep to analysis what's the reason? any mistake on my circuit design?

 

Thank for your help.

 

Benjamin 

June 16th, 2020

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CYibin
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Last seen: 1 year 1 month ago
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Joined: 2017-12-14 02:48
Hi BenjaminDu

Hi BenjaminDu

VDCDC_RF is connected to VDCDC that output 1.4v by default.

Both the the VDCDC_RF and VDCDC are the power supplierS of the internal LDOs.

 

Br

Yibin