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PI2EQX5964 Datasheet, PDF (1/1 Pages) Pericom Semiconductor Corporation – 5.0Gbps 4-Lane PCIe® 2.0 ReDriver | |||
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Product Databrief
PI2EQX5964
5.0Gbps 4-Lane PCIe® 2.0 ReDriver⢠with Equalization, Emphasis, & I2C Control
Pericom Semiconductorâs PI2EQX5964 (or 5904) is a low
power, PCIe® compliant signal redriver also suitable for other
high speed serial signals such as serdes backplane and non
protocol specific protocols. The device provides programmable
equalization, amplification, and de-emphasis by using 8 select
bits, to optimize performance over a variety of physical mediums
by reducing Inter-symbol interference.
PI2EQX5964 supports eight 100W Differential CML data I/Oâs
between the Protocol ASIC to a switch fabric, across a backplane,
or extends the signals across other distant data pathways on
the userâs platform.
The integrated equalization circuitry provides flexibility with
signal integrity of the PCI Express signal before the ReDriverâ¢,
whereas the integrated de-emphasis circuitry provides flexibility
with signal integrity of the signal after the redriver.
In addition to providing signal re-conditioning, Pericomâs
PI2EQX5964 also provides power management Stand-by mode
operated by a Bus Enable pin.
Target markets for this ReDriver are networking, embedded,
industrial, server and storage applications, including non-
protocol-specific and high-speed signal applications.
Block Diagram
xyRx+
xyRx-
xyTx+
xyTx-
+
â
+
â Equalizer
Input level detect
to control logic
Output
Controls
+
â
xyTx+
xyTx-
+
â
Output
Controls
A
B
Input level detect
to control logic
Equalizer
+
â
+
â
SELy_x
Sy_x
Dy_x
DE_x
PD#
Data Lane Repeats 4 Times
Control Registers
& Logic
Mode
LB#
RXD_x
RES_x
Power
Management
SDA
SCL
I2C Control
Ax
xyRx+
xyRx-
Features
⢠Up to 5.0Gbps PCI Express® 2.0 Serial ReDriver
⢠Supporting 8 differential channels or 4 lanes of PCIe
Interface
⢠I2C configuration controls (3.3V tolerant)
⢠Adjustable receiver equalization and transmitter
de-emphasis and output levels
⢠Increased output drive for longer trace and cable
applications
⢠Variable input an output termination
⢠1:2 channel broadcast
⢠Channel loop-back/Mux and Demux Mode
⢠Electrical Idle fully supported
⢠Receiver detect and individual output control
⢠Fine adjustment of electrical idle threshold via I2C
⢠Single supply voltage, 1.2V ± 0.05V
⢠Power down modes
⢠Industrial Temp support, -40°C ~ +85°C
⢠Packaging: 56-contact TQFN, Pb-free & Green
Figure1
PCIe 2.0
ReDriver
PI2EQX6874
Blade Server
PCIe 2.0 Cable
Blade Server
Figure1
Redrivers with emphasis and equalization signal conditioning technology ensure
the integrity of high-frequency PCIe signals by opening closed signal eyes to
recover data and meet strict compliance testing requirements. Increased signal
margin also supports longer drive lenghts over even low-quality cables.
www.pericom.com | 1-408-435-0800
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