• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 33 subscribers
  • Views 625 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.

TCA9509: SCL SDA Glitch Rejection

shiwei luan
Intellectual 750 points
Part Number: TCA9509

Does TCA9509 SCL SDA pins have any glitch rejection? For example, some I2C buffer ICs have 50ns glitch rejection so that any input noise spikes of less than 50ns will be rejected.

Thank you.

  • 0
    TI__Mastermind 49040 points

    Hey Shiwei,

    TCA9509 should have a minimum of 50ns glitch protection as this is a requirement of the I2C standard for fast mode and fast mode plus. Though if you experience glitches long than this, you can place a small series resistor on the SDA/SCL lines or use a ferrite bead. You can take a quick look at this short app note here:

    Thanks,

    -Bobby