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Jacek Pieczaba
Jacek Pieczaba
Associate III
December 11, 2023
Solved

VL6180 AVDD question

  • December 11, 2023
  • 1 reply
  • 1855 views

Hello,

I am planning to use VL6180 sensor in my application which is going to communicate with STM32L071. I would like to ask a question since the specification for the AVDD mentioning about optimal value is 2.8V. Do I need to provide some special LDO for stabilization this voltage (ripple reduction, etc.) or I can supply VL6180 directly from step down converter as long as I keep +/-100mV tolerance on 2.8V output? 

JacekPieczaba_1-1702313620102.png

STM32L071 should works well. 

Thank you in advance for your help and sorry if this question was already answered but I had difficulty to find it. 

Jacek 

This topic has been closed for replies.
Best answer by John E KVAM

The sensor does not depend on clean power. And an LDO is fine. As the sensor uses a digitally controlled Vertical Cavity Surface Emiting Laser (VCSEL) and does NOT depend on amount of signal return, your power does NOT have to be spot on. 

- john

1 reply

John E KVAM
John E KVAMAnswer
ST Employee
December 11, 2023

The sensor does not depend on clean power. And an LDO is fine. As the sensor uses a digitally controlled Vertical Cavity Surface Emiting Laser (VCSEL) and does NOT depend on amount of signal return, your power does NOT have to be spot on. 

- john

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Jacek Pieczaba
Jacek PieczabaAuthor
Associate III
December 17, 2023

Thank you very much

- Jacek 

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