TUSB501_16 Datasheet, PDF (1/17 Pages) Texas Instruments – USB 3.0 Single Channel Redriver with Equalization

TUSB501
www.ti.com
SLLSEG5A – AUGUST 2013 – REVISED AUGUST 2013
USB 3.0 Single Channel Redriver with Equalization
Check for Samples: TUSB501
FEATURES
1
•2 Aggressive Low-Power Architecture (Typ):
– 126 mW Active Power
– 20 mW in U2/U3
– 3 mW with No Connection
• Automatic LFPS DE Control
• Excellent Jitter and Loss Compensation
– 32 inches of FR4 4 mil Stripline
– 3 m of 30 AWG cable
• Integrated Termination
• Small 2 x 2 mm QFN Package
• Selectable Receiver Equalization, Transmitter
De-Emphasis and Output Swing
• Hot-Plug Capable
• ESD Protection ±5 kV HBM
APPLICATIONS
• Cell Phones, Computers, Docking Stations,
TVs, Active Cables, Backplanes
EQ
DE OS
RX+
TX+
Receiver/
Equalizer
Driver
RX-
TX-
VCC
GND
3^rd Generation
State Machine
LFPS
Controller
DESCRIPTION
The TUSB501 is a 3^rd generation 3.3-V USB 3.0
single-channel redriver. When 5 Gbps SuperSpeed
USB signals travel across a PCB or cable, signal
integrity degrades due to loss and inter-symbol
interference. The TUSB501 recovers incoming data
by applying equalization that compensates channel
loss, and drives out signals with a high differential
voltage. This extends the possible channel length,
and enables systems to pass USB 3.0 compliance.
The TUSB501 advanced state machine makes it
transparent to hosts and devices.
After power up, the TUSB501 periodically performs
receiver detection on the TX pair. If it detects a
SuperSpeed USB receiver, RX termination becomes
enabled, and the TUSB501 is ready to redrive.
The receiver equalizer has three gain settings that
are controlled by pin EQ: 3 dB, 6 dB, and 9 dB. This
should be set based on amount of loss before the
TUSB501. Likewise, the output driver supports
configuration of De-Emphasis and Output Swing (pins
DE and OS). These settings allow the TUSB501 to be
flexibly placed in the SuperSpeed USB path, with
optimal performance.
Over previous generations, the TUSB501 features
reduced power in all link states, a stronger OS option,
improved receiver equalization settings, and an
intelligent LFPS Controller. This controller senses the
low frequency signals and automatically disables
driver de-emphasis, for full USB 3.0 compliance.
The TUSB501 is packaged in a small 2 x 2 mm QFN,
and operates through an industrial temperature range
of –40°C to 85°C.
1
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2013, Texas Instruments Incorporated