1 Features
• Provides USB 3.1 Gen-1 5Gbps Super Speed (SS)
2:1 mux for a USB Type-C™ port
• Supports USB Type-C cable and connector
specifications
• Ultra low-power architecture:
– Active 100mA
– U2/U3 1.3mA
– No connection 300μA
• Selectable equalization up to 9dB, de-emphasis,
and output swing up to 6dB
• Integrated termination
• RX-detect function
• Signal monitoring for power management
• No host or device side requirement – supports
USB-C DFP, UFP or DRP port
• Single supply voltage 1.8V ±10%
• Industrial temperature range of –40 – 85°C

2 Applications
• USB 3.1 Gen 1 SS application:
– Phones
– Tablets, phablets, and notebooks
– Docking stations

3 Description
The TUSB542 is a dual channel USB 3.1 Gen1
(5Gbps), also known as USB-C, re-driver supporting
systems with USB Type-C connectors. The device
offers signal conditioning plus the ability to switch
the USB SS signals for the USB Type-C flippable
connector. The TUSB542 can be controlled through
the SEL pin by an external Configuration Channel
Logic Controller to properly mux the signals.
The TUSB542 incorporates receiver equalization and
transmitter de-emphasis to maintain signal integrity on
both transmit and receive data paths. The receiver
equalization offers multiple gain settings to overcome
channel degradation from insertion loss and intersymbol
interference. To compensate for downstream
transmission line losses, the output driver supports
de-emphasis configuration. Additionally, automatic
LFPS de-emphasis control allows for full compliance.
The TUSB542 offers low power consumption on a
1.8V supply with its ultra-low power architecture. The
re-driver supports low power modes, which further
reduce the idle power consumption.
The USB Type-C redriver is available in a small ultrathin
package, which is an excellent choice for many
portable applications.