1 Features
• USB3.1 GEN1 5Gbps, dual-channel re-driver with
3.3-V power supply
• Ultra-low-power architecture:
– Active: 98 mA
– U2, U3: 1.2 mA
– Disconnect 265 μA
– Shutdown 60 μA
• Optimal receiver equalization:
– of 3, 6, 9 dB at 2.5 GHz
• Output driver de-emphasis of 0, 3.5, and 6 dB
• Automatic LFPS de-emphasis control to meet USB
3.1 certification requirements
• No host or device-side requirement
• Hot-plug capable
• Industrial temperature range: –40°C to 85°C
TUSB522PI
• Commercial temperature range: 0°C to 70°C
TUSB522P

2 Applications
• Cell phones
• Tablets
• Notebooks
• Desktops
• Docking stations
• Backplanes and active cables

3 Description
The TUSB522P is a fourth generation, dual-channel,
single-lane USB 3.1 GEN1 redriver and signal
conditioner supporting 5Gbps. The device offers low
power consumption on a 3.3 V supply with its ultralow-
power architecture. The redriver also supports the
USB 3.1 low power modes, which further reduces idle
power consumption.
The dual-channel capability enables the system
to maintain signal integrity on both transmit and
receive data paths. The receiver equalization has
three gain settings to overcome channel degradation
from insertion loss and inter-symbol interference.
These settings are controlled from the EQ pins.
To compensate for transmission line losses, the
output driver supports configuration of De-Emphasis
with pins DE. Additionally, automatic LFPS De-
Emphasis control allows for full USB 3.1 compliance.
These settings allow optimal performance, increased
signaling distance, and flexibility in placement of the
TUSB522P in the USB 3.1 GEN1 path.