GL3523 datasheet(8/47 Pages) ETC

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GL3523 Datasheet

Page 8

GLI Confidential

CHAPTER 1

GENERAL DESCRIPTION

Genesys GL3523 is a 4-port, low-power, and configurable hub controller. It is compliant with the USB 3.1

specification. GL3523 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. GL3523 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, GL3523 has built-in 5V to 3.3V and 5V to 1.2V regulators, which saves customers’ BOM cost, and

eases for PCB design.

GL3523 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 GL3523 charging downstream ports (CDP

1) or dedicated charging port

(DCP

2). It can enable systems to fast charge handheld devices even during “Sleep” and “Power-off” modes.

With different part numbers, GL3523 also has USB Type-C function integrated (GL3523-S).

All available packages for GL3523 are listed as the following tables.

Product Series

Package Type

Number of

DFPs

Power Mgmt.

LED Support

GL3523

QFN 76

Individual/ Gang

Green/Amber

QFN 64

Individual/ Gang

N/A

QFN 48

Individual/ Gang

N/A

GL3523-S

(USB-C

Integrated)

VFBGA144 (5C)

Individual/ Gang

Green/Amber

QFN88 (2C3A)

Individual/ Gang

Amber

QFN88 (1C4A)

Individual/ Gang

Green/Amber

QFN76 (3C)

Individual/ Gang

N/A

QFN64 (1C2A)

Individual/ Gang

Green/Amber

GL3523 Total Packages

*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.

CHAPTER 2

FEATURES

 Compliant with USB 3.1 Gen 1 Specification

1 CDP, charging downstream port, the Battery Charging Rev.1.2-compliant USB port that does data

communication and charges device up to 1.5A.

2 DCP, dedicated charging port, the Battery Charging Rev.1.2-compliant USB port that only charges devices up

to 1.5A, similar to wall chargers.

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