Vin1 and Vin2 CMP DAC of MK60DN512VLQ10

[nbjasani]

Hi,

    In my design i need to use internal comparator in MK60DN512VLQ10. I read comparator in chip manual. I have not found source of Vin1 and Vin2 of 6-Bit DAC of Comparator.

    Vin1: Where it come from? Its VDDA supply? or something else?

    Vin2: Documents say its alternate voltage source, but where is come from, its internal? or need to give externally?

Thanks

Nandish Jasani.

[kerryzhou · Accepted solution]

Hi  Nandish Jasani

   You can find the CMP reference in the K60 reference manual, chapter 3:

https://www.nxp.com/docs/en/reference-manual/K60P144M100SF2V2RM.pdf 

Vin1 is the VREF_OUT, check the RM Chapter 38 Voltage Reference (VREFV1)

Vin2 is just the VDD.

Wish it helps you!

If you still have questions about it, please kindly let me know.

Best Regards,

Kerry

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[nbjasani]

Thanks Kerry,

    I need another help, in the same design i am not using USB Functionality.

What should i do with following pins, whom i can avoid EMI. Should i kept open?

1. VREGIN         -Pin No.22

2. VOUT33         -Pin No.21

3. USB0_DP       -Pin No.19

4. USB0_DM      -Pin No.20

Regards,

Nandish Jasani.

[kerryzhou]

Hi Nandish Jasani,

  1.&2.When USB is not used in the application, it is recommended that the USB regulator VREGIN and VOUT33 pins remain floating.

 3.&4.

In conclusion, just leave the used pin as float.

Best Regards,

Kerry

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Note:
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- 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.
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[nbjasani]

Thanks Kerry Zhou, its very useful.

[kerryzhou]

Hi Nandish Jasani

  You are welcome!

  Any new questions in the future, welcome to create the new question post, thanks.

Best Regards,

Kerry