PI3EQX5801 Datasheet, PDF (1/1 Pages) Pericom Semiconductor Corporation – 5.0Gbps, 1-Lane, PCIe 2.0 ReDriver

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PI3EQX5801
5.0Gbps, 1-Lane, PCIe 2.0 ReDriver™ with I²C Programming Interface
Pericom Semiconductor’s PI3EQX5801 is a low power, high
performance 5.0 Gbps signal ReDriver™ designed speci-
fically for the PCIe 2.0 protocol. The device provides program-
mable equalization, De-Emphasis, and output swing controls
to optimize performance over a variety of physical mediums by
reducing Inter-Symbol Interference. PI3EQX5801 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 flexibility with
signal integrity of the signal before the ReDriver. A low-
level input signal detection and output squelch function is
provided for each channel.
When the channels are enabled, EN# = 0, and operat-
ing, 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# = 1, the device
enters a low power standby mode. The PI3EQX5801 also
includes a fully programmable I²C interface.
When I2C control mode is enabled, I²C_EN = 1, equal-
ization, output swing, and de-emphasis settings can
be adjusted by programming the related registers.
Block Diagram
Signal Detection
CML
RXP
Equalizer
Limiting
Amp
RXN
EQ_x
- Repeated 2 times -
Power
Management
CML
TXP
TXN
Features
ÎÎPCIe 2.0 compatible
ÎÎTwo 5.0Gbps differential signal pairs
ÎÎAdjustable Receiver Equalization
ÎÎ100Ω Differential CML I/O’s
ÎÎPin Configured Output Emphasis and Output
Swing Control
ÎÎInput signal level detect and squelch for each channel
ÎÎAutomatic Receiver Detect
ÎÎLow Power : ~330mW (3.3V)/~150mW (1.5V)
ÎÎIndustrial Temp Support -40°C~ +85°C
ÎÎStand-by Mode – Power Down State
ÎÎTwo power options: 3.3V or 1.5V
ÎÎPackaging: 20-Pin TQFN (4x4mm)
Application Diagram
PC Monitor
Pericom
PI3EQX5801
PCIe 2.0
ReDriver^TM
Pericom
PI3EQX5801
PCIe 2.0
ReDriver^TM
Notebook
Chipset
Docking
GbE
Port
GbE
Controller
Notebook
Docking Station
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