Other Parts Discussed in Thread: PCM2704C
Just curious is HOST pin only for more internal LDO current provide to external ROM or some other function?
HOST pin along with PSEL pin is dedicated to selecting the power source.This selection affects the configuration descriptor. While in bus-powered operation, the maximum power consumption from VBUS is determined by the HOST pin (pin21 for the PCM2704C/5C, pin 3 for thePCM2706C/7C). For self-powered operation, the HOST pin must be connected to VBUS of the USB bus with a pull-down resistor to detect attach and detach. (To avoid excessive, suspend current, the pull down should be a high-value resistor.) Table1 summarizes the power configuration select options
All content and materials on this site are provided "as is". TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. No license, either express or implied, by estoppel or otherwise, is granted by TI. Use of the information on this site may require a license from a third party, or a license from TI.
TI is a global semiconductor design and manufacturing company. Innovate with 100,000+ analog ICs and
embedded processors, along with software, tools and the industry’s largest sales/support staff.