K64 ADC Voltage Reference Configurations

cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

K64 ADC Voltage Reference Configurations

Jump to solution
511 Views
aberger
Contributor V

The #MK64FN1M0VMD12 on-board ADC is configurable to use either (VREFH and VREFL)or (VALTH and VALTL) as the voltage reference, via the ADCx_SC2.REFSEL register bits. While VREFH and VREFL are available as dedicated pins, I cannot find what pins are connected when (VALTH and VALTL) are selected as the voltage reference.

The Reference Manual states the following:

aberger_0-1686858317934.png

But VALTH and VALTL are never mentioned in the datasheet. Does selection of the "alternate voltage reference" simply use VDDA and VSSA?

Labels (1)
0 Kudos
1 Solution
483 Views
Robin_Shen
NXP TechSupport
NXP TechSupport

Hi

Here the chip configuration information refers to section 3.7.1.6 ADC Reference Options

3.7.1.6 ADC Reference Options.jpg


Best Regards,
Robin
-------------------------------------------------------------------------------
Note:
- If this post answers your question, please click the "Mark Correct" button. Thank you!

- We are following threads for 7 weeks after the last post, later replies are ignored
Please open a new thread and refer to the closed one, if you have a related question at a later point in time.
-------------------------------------------------------------------------------

View solution in original post

0 Kudos
1 Reply
484 Views
Robin_Shen
NXP TechSupport
NXP TechSupport

Hi

Here the chip configuration information refers to section 3.7.1.6 ADC Reference Options

3.7.1.6 ADC Reference Options.jpg


Best Regards,
Robin
-------------------------------------------------------------------------------
Note:
- If this post answers your question, please click the "Mark Correct" button. Thank you!

- We are following threads for 7 weeks after the last post, later replies are ignored
Please open a new thread and refer to the closed one, if you have a related question at a later point in time.
-------------------------------------------------------------------------------

0 Kudos