Mobile devices need many processing integrated circuits (IC) to handle the diverse functionality demands of their users. A typical smartphone has a communication processor, an application processor and a power management IC, all needing to share a single USB port and to communicate at high speed USB data rates of 480 Mbps.
This paper, which originally appeared at EE Times Europe (Analog) , compares and contrasts different solutions that can be applied to this problem, ranging from a USB hub to a simple analog switch.
To read the article, click here.
About the author
Oscar Freitas is a Member of Technical Staff for Fairchild Semiconductor’s USB Products Group, Signal Path Division.