GL3520 电子元器件 GENESYS/创惟科技 封装QFN-64USB 3.0集线器控制器

　　DESCRIPTION

　　Genesys GL3520-22 is a 4-port, low-power, and configurable hub controller. It is compliant with the USB3.0 specification. GL3520-22 integrates Genesys Logic 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. GL3520-22 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, GL3520-22 has built-in 5V to 3.3V regulator, which saves customers’ BOM cost, and eases for PCB design.

　　GL3520-22 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 GL3520-22 charging downstream ports (CDP1) or dedicated charging port (DCP2). It can enable systems to fast charge handheld devices even during “Sleep” and “Power-off” modes.

　　FEATURES

　　Compliant with USB Specification Revision 3.0

　　- Upstream port supports super speed(SS) high speed(HS) and full speed(FS) traffic

　　- Downstream ports support SS, HS, FS, and low speed(LS) traffic

　　- 1 control pipe and 1 interrupt pipe

　　- Backward compatible to USB specification Revision 2.0/1.1

　　Featuring fast-charging on all downstream ports and upstream port

　　- Compliant with USB Battery Charging Revision v1.2, supporting CDP, DCP, and ACA-Dock

　　- Downstream ports can be turned from a Standard Downstream Port (SDP) into Charging Downstream Port (CDP) or Dedicated Charging Port (DCP)

　　- Downstream devices can be charged while upstream VBUS is not present, which can be applied on wall charger applications

　　- Upstream port is capable of charging and data communicating simultaneously for portable devices supporting ACA-Dock or proprietary charging protocols, such as Sony Z1 and ZL

　　- Supporting Apple 2.4A and Samsung Galaxy devices fast-charging

　　On-chip 8-bit micro-processor

　　- RISC-like architecture

　　- USB optimized instruction set

　　- 1 cycle instruction execution (maximum)

　　- Performance: 12 MIPS @ 12MHz (maximum)

　　- With 256-byte RAM, 20K-byte internal ROM, and 20K-byte SRAM

　　Multiple Transaction Translator(TT) architecture

　　- Providing dedicated TT control logics for each downstream port

　　- Superior performance when multiple FS devices operate concurrently

　　Integrated USB transceiver

　　- Improving output drivers with slew-rate control for EMI reduction

　　- Internal power-fail detection for ESD recovery

　　Advanced power management and low power consumption

　　- Supporting USB3.0 U0/U1/U2/U3 power management states

　　- Supporting USB Link Power Management (LPM) L0/L1/L2

　　- Supporting individual/gang mode over-current detection for all downstream ports

　　- Supporting low active power switch

　　- Patented Smart Power Management

　　Configurable settings by SPI-flash/EEPROM/pin strapping

　　- Configurable charging port

　　- Configurable 4/3/2 downstream ports

　　- Configurable Poly-fuse/Power-switch

　　- Supporting full in-system programming firmware upgrade by SPI-flash and EEPROM

　　- Supporting compound-device (non-removable setting on downstream ports)

　　- Supporting customization VID/PID

　　Flexible design

　　- Automatic switching between self-powered and bus-powered modes

　　- Supporting PHY tuning

　　- Supporting register setting by firmware

　　- Supporting vendor command and SMBUS

　　- Allow downstream ports to connect up to 8 devices, 4 x USB3.0 non-removable devices with 4 x USB2.0 non-removable devices or exposed ports

　　Low BOM cost

　　- Single external 25 MHz crystal / Oscillator clock input

　　- Built-in upstream port 1.5KΩ pull-up and downstream port 15KΩ pull-down resistors

　　- Built-in 5 to 3.3V regulator

　　Available package type

　　- QFN 88 (10x10mm)

　　- QFN 64 (8x 8 mm)

　　Applications

　　- Standalone USB hub/Docking station

　　- Tablet/Ultrabook/NB

　　- Motherboard

　　- Monitor built-in hub, GL3520-22 GPIOs can be programmed as I2C interface to easily update scalar firmware through USB interface

　　- TV built-in hub

　　- Compound device, such as hub-reader application

　　- USB wall charger

　　- Other consumer electronics

　　- Customized applications

　　Dynamically disable/enable ports

　　GPIO signaling of ambient light sensor or rotation/position sensor