JAJSGX4 February 2019 TUSB8044A
ADVANCE INFORMATION for pre-production products; subject to change without notice.
When using an external clock source such as an oscillator, the reference clock should have a ±100 PPM or better frequency stability and have less than 50-ps absolute peak to peak jitter or less than 25-ps peak to peak jitter after applying the USB 3.2 Gen1 jitter transfer function. XI should be tied to the 1.8-V clock source and XO should be left floating.