1 Features

• Passive bidirectional USB-C Alternate Mode Mux

to switch between USB and DisplayPort signals

• Supports USB 3.2 up to 10Gbps (Gen 2.0) and

DisplayPort 2.1 up to 10Gbps per lane (UHBR10)

• Compatible for Source/Host and Sink/Device

applications

• −3dB differential BW: 9.5GHz

• Dynamic characteristics:

– Insertion loss = −1.6dB at 5GHz

– Return loss = −18dB at 5GHz

• Supports common mode voltage (CMV) from 0V to

1.8V

• Adaptive CMV tracking

• 6V tolerant SBU pins to survive short-to-VBUS

events

• Can be configured through GPIO pins or I2C

• Supports both 1.8V and 3.3V I2C

• Single supply voltage VCC: 3.3V

• Active power consumption: 340μA

• Low standby power consumption: 0.5μA (pin

mode)

• Extended industrial temperature: −40°C to 105°C

• Available in 3mm × 6mm QFN package

2 Applications

• PCs and notebooks

• TVs

• Gaming

• Docking Stations

• Home theater and entertainment

• Factory automation and control

• Electronic point of sale (EPOS)

• Smartphones

• Tablets

3 Description

The TMUXHS4446 is a high-speed bidirectional

passive crosspoint switch or cossbar (Xbar). This

device is used to switch between USB 3.2 Gen2

SuperSpeed and DisplayPort 1.4/2.1 (up to 10Gbps

UHBR10) signals over a USB Type-C also known as

USB-C interface. The device also provides switching

for the low-speed SBU signals that are used for

DisplayPort auxiliary channels. The TMUXHS4446

supports differential signaling with a common mode

voltage (CMV) range of 0V to 1.8V and a differential

amplitude from 0V to 1800mVpp. Adaptive CMV

tracking enables the channel through the device

to remain unchanged for the entire common-mode

voltage range.

The dynamic characteristics of the TMUXHS4446

allows high-speed switching with minimum attenuation

to the signal eye diagrams, and very little added

jitter. The silicon design of the device is optimized for

excellent frequency response at a higher frequency

spectrum of the signals. The silicon signal traces and

switch network of the TMUXHS4446 are matched for

best intra-pair skew performance.

The TMUXHS4446 has an extended industrial

temperature range (−40°C to 105°C) designed for

many rugged applications, including industrial and

high reliability use cases.