GL3520 EDM.pdf

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GL3520
USB 3.0 MTT Hub Controller
Worldwide No.1 USB 3.0 Hub Controller with Ensured
Compatibility
Overview
GL3520 is a 4-port, highly cost-effective, and configurable hub controller. It is compliant with the USB 3.0
specification, and fully backward-compatible with HS/FS/LS hosts and devices. GL3520 USB 3.0 hub
controller achieves the industry-leading 0.9W power consumption while four SuperSpeed devices connecting
to downstream ports are active with read/write operating. GL3520 incorporates patented Smart Power
Management that can dynamically switch the mode of downstream ports to ensure the quality of flow. Its
firmware is upgradable and configurable based on customers’ needs for features such as non-removable and
port number settings.
Features
Compliant with USB specification revision v1.1/2.0/ 3.0
USB 2.0 MTT architecture, configurable 4/3/2 downstream ports
Support USB 3.0 U0/U1/U2/U3 power management states
Support both individual and gang modes of power management and over-current detection for downstream ports
Automatic switching between self-powered and bus-powered modes
Provide SPI interface for firmware upgrade
Support slew-rate control for EMI reduction
Internal power-fail detection for ESD recovery
25MHz reference input clock
Certified by USB-IF for SuperSpeed USB Hub (TID: 330000028)
Package: QFN 64 (8x8mm) & QFN 88 (10x10mm)
Block Diagram
Tx
Rx
D+
D-
USB 2.0 / 1.1
MTT Hub
2.0
PHY
USB 3.0
Repeater
FIFO
3.0
PHY
USB 3.0
Traffic
USB 3.0
USB 2.0
USB 3.0
USB 2.0
USB 3.0
USB 2.0
USB 3.0
USB 2.0
USB 2.0
Traffic
Genesys Logic, Inc.
12F., No. 205, Sec. 3, Beixin Rd., Xindian Dist. 231, New Taipei City, Taiwan Tel : 886-2-89131888 Fax : 886-2-89131688
Sales Contact : sales@genesyslogic.com.tw Technical Support : support@genesyslogic.com.tw
Website : www.genesyslogic.com

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