GL3520 USB3.0 Hub Controller Datasheet

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"GL3520 USB 3.0 Hub Controller 的数据手册，由 GenesysLogic, Inc. 出版，版本1.32，发布于2011年7月15日。该手册包含了关于 GL3520 芯片的技术规格、功能描述以及使用注意事项。" GL3520 是一款由 GenesysLogic, Inc. 设计和制造的USB 3.0集线器控制器。这个控制器是专为高速数据传输和扩展USB接口而设计的，它能够将一个USB 3.0接口转换为多个下游端口，从而允许用户同时连接多个USB设备。USB 3.0标准提供高达5Gbps的数据传输速率，是USB 2.0速度的十倍，极大地提高了数据传输效率。在数据手册中，GL3520的主要特性可能包括其硬件接口、电源管理、信号处理、兼容性以及各种保护机制。例如，它可能会详述如何支持USB 3.0的SuperSpeed模式，以及如何与USB 2.0和1.1设备兼容。此外，控制器可能包含电源管理功能，如自动省电模式，以降低功耗。GL3520可能还具有过流、过压和短路保护功能，以保护连接的设备和整个系统。文档中的“Revision 1.32”表明这是该芯片资料的第1.32次修订版，通常意味着可能已经包含了自初次发布以来的改进、修复或新功能。制造商GenesysLogic, Inc.声明对所有提供的材料拥有所有权和权益，并保留所有权利，包括但不限于专利权、商标权、版权和其他专有权利。 GenesysLogic明确指出，他们不提供任何形式的明示或暗示的保证，包括但不限于对准确性、适销性、特定用途适用性和不侵犯知识产权的保证。这意味着用户在使用GL3520时需自行承担风险，制造商不负责任何直接、间接、附带或意外损害。尽管如此，GenesysLogic保留随时对这些材料进行更改的权利，以适应产品发展和技术更新。 GL3520 USB 3.0 Hub Controller的数据手册是工程师和开发者设计和集成USB 3.0集线器系统的重要参考资料，它提供了详细的芯片功能描述、电气特性、接口规范以及应用指导，以确保高效、安全地利用此控制器实现高速USB扩展功能。

GL3520 Datasheet

List of Figures

Figure 3.1 - GL3520 QFN 88 Pin Pinout Diagram................................................................ 9

Figure 3.2 - GL3520 QFN 64 Pin Pinout Diagram.............................................................. 10

Figure 4.1 - Block Diagram ................................................................................................... 14

Figure 5.1 - Operating in USB 1.1 Schemes.........................................................................17

Figure 5.2 - Operating in USB 2.0 Schemes.........................................................................18

Figure 5.3 - Power on Reset Diagram................................................................................... 19

Figure 5.4 - Power on Sequence of GL3520......................................................................... 19

Figure 5.5 - Timing of PGANG Strapping...........................................................................20

Figure 5.6 - GANG Mode Setting .........................................................................................20

Figure 5.7 - SELF/BUS Power Setting .................................................................................21

Figure 5.8 - LED Connection ................................................................................................21

Figure 7.1 - Vin(V5) vs Vout(V33)*......................................................................................30

Figure 8.1 - GL3520 88 Pin QFN Package........................................................................... 31

Figure 8.2 - GL3520 64 Pin QFN Package........................................................................... 32

List of Tables

Table 5.1 - Configuration by Power Switch Type ...............................................................21

Table 7.1 - Maximum Ratings...............................................................................................25

Table 7.2 - Operating Ranges................................................................................................25

Table 7.3 - DC Characteristics except USB Signals............................................................ 26

Table 9.1 - Ordering Information.........................................................................................33

GL3520 Datasheet

CHAPTER 1 GENERAL DESCRIPTION

GL3520 is a highly-compatible, high performance USB 3.0 hub controller, which integrates Genesys Logic own

self-developed USB 3.0 Super Speed transmitter/receiver physical layer (PHY) and USB 2.0 High-Speed PHY.

It supports Super Speed, Hi-Speed, and Full-Speed USB connections and is fully backward compatible to all

USB 2.0 and USB 1.1 hosts. GL3520 is a premium 4 port MTT Hub solution, implementing multiple TT*

(Note1) architecture that provide dedicated TT* to each downstream (DS) ports, which guarantee Full-Speed(FS)

data passing bandwidth when multiple FS device perform heavy loading operations.

GL3520 also complies with USB-IF battery charging specification rev1.1, which can support fast charging

function, allowing portable device can draw up to 1.5A from GL3520 charging downstream ports (CDP

) or

dedicated charging port (DCP

). So it can enable systems to fast charge handheld devices even during “Sleep”

and “Power-off” modes.

There are two available packages: QFN88

(10x10mm) and QFN64(8x8mm). Summarize as below table.

Package Type # of DS Ports Power Mgmt. LED Support FW Upgrade

QFN 88 4 Individual/Gang Green/Amber SPI Flash

QFN 64 4 Gang Green SPI Flash

GL3520 Package – Feature Summary

*Note: TT (transaction translator) implements the control logic defined in section 11.14 ~ 11.22 of USB

specification revision 2.0. TT basically handles the unbalanced traffic speed between the USPORT (operating in

HS) and DSPORTS (operating in FS/LS) of hub.

CDP, charging downstream port, the Battery Charging Rev.1.1-compliant USB port that does data

communication and charges device up to 1.5A.

DCP, dedicated charging port, the Battery Charging Rev.1.1-compliant USB port that only charges devices up

to 1.5A, similar to wall chargers.

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