The TUSB1210 data sheet section 6.3, page 55 says:
"Recommended operation is for VBAT to be present before VDDIO."
VBAT is 3.3V and VDDIO is 1.8V
However, Section 4.8.2.1.1, page 12, indicates that VDD18 is present before VDD33.
In EVM schematic, VDD33 is connected to VBAT, and VDDIO is connected to VDD18. This contradicts section 6.3 recommendation.
Which is the correct power on sequence?Is there minimum time between rails powering up? Data sheet shows typical values and 2 max values.
Thanks, Roland