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PI3EQX7502B
5.0Gbps, 1-port, USB3.0 ReDriver
Diodes Incorporated PI3EQX7502B is a low power, high
performance 5.0 Gbps signal ReDriver™ designed specically
for the USB 3.0 protocol. The device provides programmable
equalization, De-Emphasis, and input threshold controls to
optimize performance over a variety of physical mediums
by reducing Inter-Symbol Interference. The PI3EQX7502B
supports two 100Ω Differential CML data I/O’s between the
Protocol ASIC to a switch fabric, over cable, or to extend the
signals across other distant data pathways on the user’s
platform. The integrated equalization circuitry provides exibility
with signal integrity of the signal before the ReDriver. A low-level
input signal detection and output squelch function is provided for
each channel.
Each channel operates fully independently. When the channels
are enabled EN_x# = 0 and operating, that channels’ input signal
level (on xI+/-) determines whether the output is active. If the
input signal level of the channel falls below the active threshold
level (Vth-) then the outputs are driven to the common mode
voltage. In addition to signal conditioning, when EN_x# = 1, the
device enters a low power standby mode. The PI3EQX7502B
also includes a fully programmable receiver detect function.
When the RXD-EN pin is pulled high, automatic receiver
detection will be active. The receiver detection loop will be
active again if the corresponding channel’s signal detector is idle
for longer than 7.3mS. The channel will then move to Unplug
Mode if load not detected, or it will return to Low Power Mode
(Slumber Mode) due to inactivity.
Features
Description
¼¼ USB 3.0 compatible
¼¼ Full Compliancy to USB3.0 Super Speed Standard
¼¼ Two 5.0Gbps differential signal pairs
¼¼ Adjustable Receiver Equalization
¼¼ 100Ω Differential CML I/O’s
¼¼ Pin Congured Output Emphasis Control
¼¼ Input signal level detect and squelch for each channel
¼¼ Automatic Receiver Detect with digital enable/disable
¼¼ Low Power : ~330mW
¼¼ Auto “Slumber” mode for adaptive power management
¼¼ Stand-by Mode – Power Down State
¼¼ Industrial Temp Support (-40°C to 85°C)
¼¼ Single Supply Voltage: 3.3V
¼¼ Packaging: 24-Pin TQFN (4x4mm)
Application Diagram
Application
USB 3.0 Cable
Digital Camera
External Storage
Device
PC Monitor
Tablet PC
Multi-function
Printer
Pericom
USB 3.0
ReDriver
Pericom
USB 3.0
ReDriver
XI
+
CML
CML
Limiting
Amp
Equalizer
Signal Detection
Power
Management
- Repeated 2 times -
XI
–
XO
+
XO
–
EQ_x
