19-5952; Rev 1; 3/12
E V A L U A T I O N K I T A V A I L A B L E
MAX14972
Dual SuperSpeed USB 3.0 Equalizer/Redriver
General Description
Benefits and Features
The MAX14972 dual SuperSpeed USB 3.0 equalizer/
redriver utilizes programmable input equalization and
output deemphasis to reduce deterministic jitter and
restore signal loss caused by circuit-board or signal-
cable losses, and allows optimal placement of key
SuperSpeed USB 3.0 components and longer circuit-
board traces or cables. The device features advanced
power management with receiver detection and explicit
support for USB 3.0 low-frequency periodic signals
(LFPS).
S Innovative Design Eliminates Need for Costly
External Components
Single +3.3V Supply Operation
S Advanced Power Management for Maximum
Efficiency
1mW (typ) in Standby State
23mW (typ) in Receiver Detect State
82.5mW (typ) in Dynamic Power-Down State
304mW (typ) in Active State
S High Level of Integration for Performance
Very Low Latency with 250ps (typ) Propagation
Delay
The device is available in a small, 24-pin (4.0mm x
4.0mm) TQFN package with flow-through traces for opti-
mal layout and minimal space requirements. The device
is specified over the 0NC to +70NC commercial operating
temperature range.
10dB (typ) Input/Output Return Loss Up to 2.5GHz
Three-Level Programmable Input Equalization
Six-Level Programmable Output Deemphasis
Explicit LFPS Support with Frequency Shaping
SuperSpeed USB 3.0-Compliant Receiver
Detection
Low-Voltage (1.8V) Compatible Controls
Excellent Jitter and Loss Compensation Capability
> 40in of 4mil Microstrip
Applications
USB Ports
USB Hubs
Notebook Computers
Desktop Computers
Docking Stations
Industrial USB Switching
S Ideal for Space-Sensitive Applications
On-Chip 50I Input/Output Terminations
24-Pin, 4.0mm x 4.0mm TQFN Packaging
8kV HBM ESD Protection on All Pins
Pin-to-Pin Compatible with TI SN65LVPE502
and TI SN65LVPE502CP
Ordering Information appears at end of data sheet.
Typical Operating Circuit
V
CC
REMOTE BOARD
MAIN BOARD
0.1µF
100nF (X7R)
100nF (X7R)
100nF (X7R)
100nF (X7R)
100nF (X7R)
100nF (X7R)
MIDPLANE
TX+
TX-
RX+
RX-
RX1+
RX1-
TX1+
TX1-
RX2+
RX+
SINGLE DIFFERENTIAL PAIR
RX-
USB 3.0
HOST
USB 3.0
100nF (X7R)
MAX14972
DEVICE
TX2+
TX2-
TX+
SINGLE DIFFERENTIAL PAIR
100nF (X7R)
TX-
RX2-
GND
CONNECTORS
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1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.