[原创] Cypress HX3 USB 3．0集线器参考设计CY4609

Cypress公司的CYUSB330x, CYUSB331x, CYUSB332x和CYUSB230x系列是 HX3 USB 3.0集线器控制器,符合USB3.0 规范版本1.0,有端口上均支持超高速（SS）,高速（HS）,全速(FS)以及低速（LS）功能.器件包含集成的终端电阻、上拉和下拉电阻，并支持通过引脚设置（pin-strap）的各个配置选项，以减低硬件系统的材料清单（BOM）.主要用在独立集线器,PC 和平板电脑主板,基座,手持设备支架,监视器,数字电视,机顶盒和打印机.本文介绍了HX3 USB 3.0集线器主要特性,框图,以及HX3 USB 3.0集线器参考设计CY4609主要特性,框图和电路图.

HX3 is a family of USB 3.0 hub controllers compliant with the USB 3.0 specification revision 1.0. HX3 supports SuperSpeed (SS),Hi-Speed (HS), Full-Speed (FS), and Low-Speed (LS) on all the ports. It has integrated termination, pull-up, and pull-down resistors,and supports configuration options through pin-straps to reduce the overall BOM of the system.HX3 includes the following Cypress-proprietary features:Shared Link™: Enables extra downstream (DS) ports for on-board connections in embedded applications Ghost Charge™: Enables charging of devices connected to the DS ports when no host is connected on the upstream (US) port

HX3 USB 3.0集线器主要特性:

■ USB-IF Certified Hub, TID# 330000060, 30000074
■ Supports up to Four USB 3.0-Compliant DS ports..

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