USB Type-C™ Crosspoint Switch with On-chip Microcontroller
Overview:
ANX7447 is an intelligent crosspoint switch that supports switching at data rates of up to 10Gbps. ANX7447 supports high- speed interfaces, such as USB 3.1 (Gen 1 — 5Gbps, Gen 2 — 10Gbps) and DisplayPort’” (DP) 1.4 at up to HBR3 (8.1Gbps). ANX7447 is designed as a companion IC to various CPUs and Application Processors (APs) to enable notebooks, desktops, and 2-in-1 PCs to use the reversible USB Type-C (USB-C") connectors. 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 v1.2 and USB Power Delivery v3.0 specifications. ANX7447 can be configured for a Downstream Facing Port (DFP) or Dual-Role Port (DRP) to support a USB-C receptacle. In the DFP configuration, ANX7447 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.
The ANX7447 can be adopted by Intel, AMD, Qualcomm, MTK platform designs.
Main Features:
4-lanes DisplayPort inputs with link speed of 1.62Gbps, 2.7Gbps, 5.4Gbps, 6.75Gbps, 8.1Gbps
USB 3.1 signal (SSTX and SSRX) with Gen1 (5Gbps) and Gen2 (10Gbps) link speed
DisplayPort Alternate Mode (SlimPort®) communication support through USB-PD structured VDM messaging
Native TCPC-compliant hardware register interface
Supports DFP and DRP modes for Host-only or Dual-Role applications
Integrated VCONN FETs
Built-in 10-bit ADC to monitor VBUS voltage and current
Dedicated control signals for VBUS Source FET, VBUS sink FET, and VBUS auto discharge circuity
Serial and debug interface
Slave interface
Direct Connect Interface (DCI) debug support
Industry standard compatibility
USB Type-C r1.2 specification
USB Power Delivery v3.0 r1.0 specification
DisplayPort 1.4 specification
DisplayPort Alternate Mode over USB Type-C r1.1 specification
Universal Serial Bus (USB) Type-C Port Controller Interface r1.0 specification
Low-power design
Single supply at 3.3V
Dedicated supply power pin for flexible I/O power – 1.8V or 3.3V
Ultra-low power consumption (typical 77uw) in standby mode
OCM to implement signal switching, USB-PD messaging, and DisplayPort related functions
64K bytes SRAM for firmware execution
128K bytes Flash for firmware storage
PDFU function for firmware updating
Dead battery detection support
Package
BGA-49 3.2mm x 3.2mm, 0.9mm Z-height, 0.4mm pin- pitch
QFN-48 6mm x 6mm, 0.8mm Z-height, 0.4mm pin-pitch
Applications:
Accessories
Notebook/Desktop PC
Package:
BGA-49 3.2mm x 3.2mm, 0.9mm Z-height, 0.4mm pin- pitch
