PN7160 - How to reduce output power using DPC (Reader Mode)

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PN7160 - How to reduce output power using DPC (Reader Mode)

PN7160 - How to reduce output power using DPC (Reader Mode)

In the case, the Reader output power cannot be further reduced with the help of the tuning and TXLDO settings (e.g. EMI reasons) 

Then further reduction can be done using DPC settings. The idea is to use just one DPC entry and adjust the GSN value as shown below:

DPC Settings: 

Tomas_Parizek_1-1718095662620.png

 

The DPC Entries (1-19) have been deactivated (Index Activate ->0), and only Entry 00 stays active. 

Tomas_Parizek_0-1718095428668.png

 

An example (RF Field measured using a scope probe):

No DPC, TXLDO 5V 

image (1).png
 
NO DPC, TXLDO 2.7V
image (2).png

 

DPC Activated, One Entry, GSN-> 0x05

image (3).png

 

DPC Activated, One Entry, GSN-> 0x01

image (4).png

 

Please consider that the reading performance will be impacted. 

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Last update:
‎06-11-2024 01:53 AM
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