A product Line of
diodes.com | 1-408-232-9100
PRODUCT BRIEF
TIMING SOLUTIONS
SIGNAL INTEGRITY SOLUTIONS
SWITCHING SOLUTIONS
CONNECTIVITY SOLUTIONS
DISPLAY/VIDEO SOLUTIONS
PI2EQX5964
5.0Gbps 4-Lane PCIe
®
2.0 ReDriver with Equalization, Emphasis, & I
2
C Control
The PI2EQX5964 is a low power, PCIe
®
compliant signal
redriver. The device provides programmable equalization,
amplication, 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 100-Ohm Differential CML data
I/O’s between the Protocol ASIC to a switch fabric, across a
backplane, or extends the signals across other distant data
pathways on the user’s platform.
The integrated equalization circuitry provides exibility with
signal integrity of the PCI Express signal before the ReDriver,
whereas the integrated de-emphasis circuitry provides exibility
with signal integrity of the signal after the redriver.
In addition to providing signal re-conditioning, Diodes’
PI2EQX5964 also provides power management Stand-by
mode operated by a Bus Enable pin.
Features
Description
¼¼ Up to 5.0Gbps PCI Express® 2.0 Serial ReDriver
¼¼ Supporting 8 differential channels or 4 lanes of PCIe Interface
¼¼ I
2
C conguration controls (3.3V tolerant)
¼¼ Adjustable receiver equalization and transmitter
de-emphasis and output levels
¼¼ Variable input and output termination
¼¼ 1:2 channel broadcast
¼¼ Channel loop-back/Mux and Demux Mode
¼¼ Electrical Idle fully supported
¼¼ Receiver detect and individual output control
¼¼ Fine adjustment of electrical idle threshold via I
2
C
¼¼ Single supply voltage, 1.2V ± 0.05V
¼¼ Power down modes
¼¼ Industrial Temp support, -40°C ~ +85°C
¼¼ Packaging: 56-contact TQFN, Pb-free & Green
Application Diagram
PCIe 2.0 Cable
Blade Server
Blade Server
PCIe 2.0
ReDriver
+
−
+
−
+
−
+
−
+
−
+
−
A
B
xyTx-
xyTx+
xyRx+
xyRx-
Equalizer
Equalizer
Inputleveldetect
tocontrollogic
Output
Controls
Output
Controls
Inputleveldetect
tocontrollogic
DataLaneRepeats4Times
ControlRegisters
&Logic
Power
Management
I
2
CControl
SELy_x
Sy_x
Dy_x
DE_x
PD#
SDA
SCL
Mode
LB#
RES_x
RXD_x
Ax
xyTx-
xyTx+
xyRx+
xyRx-
