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GL3522
產品簡述

GL3522 is a 4-port, low-power, and configurable hub controller. It is compliant with the USB 3.1 Gen 1 specification. GL3522 integrates Genesys Logic self-developed USB 3.1 Gen 1 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. GL3522 also implements multiple TT* (Note1) architecture providing dedicated TT* to each downstream (DS) port, which guarantees Full-Speed(FS) data passing bandwidth when multiple FS devices perform heavy loading operations. Furthermore, GL3522 has built-in 5V to 3.3V and 5V to 1.2V regulators, which saves customers’ BOM cost, and eases for PCB design.

GL3522 features the native fast-charging and complies with USB-IF battery charging specification rev1.2, it could fast-charge Apple, Samsung Galaxy devices, and any device complaint with BC1.2/1.1. It also allows portable devices to draw up to 1.5A from GL3522 charging downstream ports (CDP ) or dedicated charging port (DCP ). It can enable systems to fast charge handheld devices even during “Sleep” and “Power-off” modes.

 

*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.

 


•  Compliant with USB Specification Revision 3.1 Gen 1
•  Native 4-port fast-charging capability, supporting BC1.2, Apple, Samsung Galaxy Tabs
•  On-chip 8-bit micro-processor
•  Multiple Transaction Translator(TT) architecture
•  Advanced power management and low power consumption
•  Configurable settings by EEPROM/pin strapping/firmware
•  Flexible design
•  Integrated 5->1.2V and 5->3.3V regulator, saving BOM cost
•  Available package type- QFN 76 (9x9mm)

 


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