ANX7428

ANX7428

USB-C Port Controller with USB3 Switch, Power Delivery and DisplayPort Alternate Mode
USB-C
USB Type-C Crosspoint Switch
Overview: 

ANX7428 is an intelligent crosspoint switch that supports switching at data rates of up to 6.75Gbps. ANX7428 supports high-speed interfaces, such as USB 3.1 (Gen 1 – 5Gbps) and DisplayPort™ (DP) 1.3 at up to HBR2.5 (6.75Gbps). ANX7428 is designed as a companion IC to various CPUs and Application Processors (APs) to enable notebook PCs, tablets, and smartphones to use mobile connectors such as the reversible USB Type-C (USB-C™). An On-chip Microcontroller (OCM) is available to manage the signal switching, Channel Configuration (CC) detection, USB Power Delivery (USB-PD) charging and Vendor Defined Message (VDM) protocol, and other functions, as defined in the USB Type-C v1.1 and USB Power Delivery v2.0 specifications. ANX7428 can be configured for a Downstream Facing Port (DFP), Upstream Facing Port (UFP), or Dual- Role Port (DRP) to support a USB-C receptacle. In the DFP configuration, ANX7428 supports the DisplayPort Alternate Mode as defined by VESA® to carry high-definition audio and video (A/V) contents at 1, 2, or 4-lanes DP over the USB-C connector.

Main Features: 
  • High-speed switching up to 6.75Gbps
  • 4-lanes DisplayPort inputs with link speed of 1.62Gbps, 2.7Gbps, 5.4Gbps, and 6.75Gbps
  • USB 3.1 signal (SSTX and SSRX) with Gen1 (5Gbps) link speed
  • DisplayPort Alternate Mode communication support through USB-PD structured VDM messaging
  • On-chip Microcontroller (OCM) to implement signal switching, USB-PD messaging, and DisplayPort related functions 
  • 5V-tolerant CC/VCONN signals
  • Dead battery charging support
  • I2C slave mode to support external MCU/IC
  • VBUS control and USB_ID pins to control external Power Management Integrated Circuits (PMICs) or USB charger IC based on the USB-PD configuration
  • 3.3V power supply (1.0V Core power generated by internal regulator)
  • 1.8V~3.3V power supply for digital IO
  • Supports the following
    • USB 3.1 signal switching
    • DisplayPort Alternate Mode on USB Type-C Standard (rev 1.0) Pin Assignments C, D, E and F
    • USB Power Delivery Specification v2.0 on CC wire
  • Designed to the following specifications 
    • DisplayPort 1.3 PHY and electrical specifications
    • USB Type-C Cable and Connector Specification v1.1
    • USB Power Delivery Specification v2.0
    • USB 3.1 Gen 1 electrical specifications 
Applications: 

Tablets

Docking Station

Notebooks

Standards Compliance: 

DisplayPort 1.3 PHY and electrical specifications

USB 3.1 Gen 1 electrical specifications

USB Power Delivery Specification v2.0 (rev 1.0)

USB Type-C Cable and Connector Specification (rev 1.0)

Detailed Product Information: