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I.MX8M MIPI-CSI2 voltage level

Question asked by wei shi on Jul 3, 2020
Latest reply on Jul 7, 2020 by wei shi

Hi ALL,

 

We are using I.MX8M in one of our solutions in which we are utilizing MIPI-CSI2 for acquiring CMOS Sensor Signals .

   In the CMOS sensor datasheet, it is mentioned that VDD_MIPI is of 1.2V level, refer to the below image.

 

Whereas it is mentioned in Page 17 of I.MX8M datasheet that MIPI_VDDHA is of 1.8V level, refer to the below image.

   

      In Page 57 of I.MX8M datasheet , the max value of MIPI LP-RX   VIH   is 1.3mv, Is it a mistake or not?

Probably the value is 1.3V?

 

 

  We understand that both these rails are only the core voltage levels and does it not have any significance on the differential signaling levels and therefore this is not a conflict.

    In our design ,we connect the sensor mipi differential signals directly to the MX8 processor without any voltage transfer circuit, Is there any problem?

   If the max value of MIPI LP-RX   VIH   is 1.3V,  The sensor MIPI signals max output voltage is 1.2V, Is there any problem?

 

 

      Kindly let us know whether our understanding is correct and help us make sure that our design is correct.

      THANK YOU VERY MUCH~~~~

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