USB Type-C™ DP ALT Mode Linear Redriver Crosspoint Switch - TUSB546A-DCI


USB Type-C™ DP ALT Mode Linear Redriver Crosspoint Switch



The TUSB546A-DCI is a VESA USB Type-C™ Alt Mode redriving switch supporting USB 3.1 data rates up to 5 Gbps and DisplayPort 1.4 up to 8.1 Gbps for downstream facing port (Host). The device is used for configurations C, D, E, and F from the VESA DisplayPort Alt Mode on USB Type-C Standard Version 1.1. This protocol-agnostic linear redriver is also capable of supporting other USB Type-C Alt Mode interfaces.

The TUSB546A-DCI provides several levels of receive linear equalization to compensate for inter symbol interference (ISI) due to cable and board trace loss. Operates on a single 3.3-V supply and comes in a commercial temperature range and industrial temperature range.


  • USB Type-C Crosspoint Switch Supporting
    • USB 3.1 SS + 2 DP Lanes
    • 4 DP Lanes
  • USB 3.1 Gen1 up to 5 Gbps
  • DisplayPort 1.4 up to 8.1 Gbps (HBR3)
  • VESA DisplayPort Alt Mode DFP Redriving Crosspoint Switch Supporting C, D, E and F Configurations
  • Ultra-Low-Power Architecture
  • Linear Redriver With up to 14 dB Equalization
  • Transparent to DisplayPort Link Training
  • Automatic LFPS De-Emphasis Control to Meet USB 3.1 Certification Requirements
  • Configuration Through GPIO or I2C
  • Intel Proprietary DCI capability on USB Type-C™ for closed chassis debugging
  • Hot-Plug Capable
  • Industrial Temperature Range: -40ºC to 85ºC (TUSB546AI-DCI)
  • Commercial Temperature Range: 0ºC to 70ºC (TUSB546A-DCI)
  • 4 mm x 6 mm, 0.4 mm Pitch WQFN Package

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Parametrics Compare all products in USB Type-C and Power Delivery

Policy Manager
Alternate Mode
Power Role
Data Role
Internal Power Path
External Power Path Control
Realtime VBUS monitoring
Dead Battery Support
USB Speed (Mbps)
Operating Temperature Range (C)
Package Group
Active Signal Switch    Passive Signal Switch    Active Signal Switch    Bi-directional Redriver    Active Signal Switch   
N/A    N/A    N/A       
Yes    Yes    Yes    Yes    Yes   
N/A    N/A    N/A    DRP    N/A   
DFP    DRP    UFP   
N/A    N/A    N/A    N/A    N/A   
N/A    N/A    N/A      N/A   
No    No    No    No    No   
No    No      No    No   
5000    5000    10000    5000    5000   
-40 to 85
0 to 70   
-40 to 85
0 to 70   
-40 to 85
0 to 70   
-40 to 85    0 to 70   
Catalog    Catalog    Catalog    Catalog    Catalog   
Alternate mode / Source    Alternate mode Sink/Source    Alternate mode / Source    USB Type-C with USB 3.1 Gen1 and DisplayPort 1.4 as Alternate Mode    Cross Point C & D