• State Resolved
  • Locked Locked
  • Replies 6 replies
  • Answers 1 answer
  • Subscribers 32 subscribers
  • Views 223 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

SN65LVDS93A: SN65LVDS93A

m-igawa
Prodigy 40 points
Part Number: SN65LVDS93A

If Hsync and Vsync are input to the SN65LVDS93A as Low Active, are the polarity of Hsync and Vsync in the LVDS Data Low Active?
If not, can it be set to Low Active?

Do the TTL input Hsync and Vsync inputs of the SN65LVDS93A have to be High Active signals?

  • 0
    TI__Genius 17325 points

    Hello,

    It does not appear that the SN65LVDS93A is capable of changing the polarity of HSYNC and VSYNC. More specifically, this device is a pass-through parallel to serial LVDS, meaning that low input will correspond with low output and high input will correspond with high output.

    Whether low active or high active is needed for HSYNC and VSYNC will be based on the particular needs of the specific display in the system.

    Best,

    Nikolas

  • 0 in reply to Nikolas Antonucci
    Prodigy 40 points
    Nikolas Antonucci said:

    It does not appear that the SN65LVDS93A is capable of changing the polarity of HSYNC and VSYNC. More specifically, this device is a pass-through parallel to serial LVDS, meaning that low input will correspond with low output and high input will correspond with high output.

    Whether low active or high active is needed for HSYNC and VSYNC will be based on the particular needs of the specific display in the system.

    Is the SN65LVDS93A Spec to input Active High Hsync and Vsync?

  • 0 in reply to m-igawa
    TI__Genius 17325 points

    Hello,

    There is no particular spec - the SN65LVDS93A can accept either active high or low input HSYNC or VSYNC. Whether its high or low will depend on the incoming video data. 

    Best,

    Nikolas

  • 0 in reply to Nikolas Antonucci
    Prodigy 40 points

    HSYNC/VSYNC of LVDS OUT is Active High even when Input Hsync/Vsync Active High or Input Hsync/Vsync Active Low.
    Is this understanding correct?

  • 0 in reply to m-igawa
    TI__Genius 17325 points

    Hello,

    No - the SN65LVDS93A appears to be a passthrough device, meaning that whatever state is inputted will be passed through to the output.

    Low Active Input --> Low Active Output

    High Active Input --> High Active Output

    Best,

    Nikolas

  • 0 in reply to Nikolas Antonucci
    Prodigy 40 points

    Dear Nikolas

    I understand.

    Thanks & best regards,

    m-Igawa