• State Resolved
  • Locked Locked
  • Replies 2 replies
  • Subscribers 34 subscribers
  • Views 268 views
  • Users 0 members are here
Support feedback
Options
Options
Related

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.

TUSB8041: schematic review

Shu-Cheng LIN
Guru 11785 points

Part Number: TUSB8041
Other Parts Discussed in Thread: TUSB8042

Hi Sirs,

Sorry to bother you.

We're finish TUSB8041 schematic as below

Could you help us to double check? any suggestion are welcome.

Thanks!!

  • 0
    TI__Guru 60870 points
    Hello Shu-Cheng,

    The TEST pin should have an external pulldown.
    SMBUSz should not be pulled down unless a SMBUS host will configure the hub.
    Depending on power on timing, a larger capacitor on GRSTz may be needed to provide an adequate power on reset pulse.
    Will this device be sent for USB compliance logo?

    Regards,
    JMMN
  • 0 in reply to JMMN
    TI__Guru 60870 points
    If a USB logo is required, we recommend changing to the newer pin for pin compatible TUSB8042. Also, using an EEPROM that can mark ports that are connected to devices as "non-removable" is necessary. These changes would have no functional impact, but would be required to obtain a logo.