pi2eqx8804 Pericom Semiconductor Corporation, pi2eqx8804 Datasheet
pi2eqx8804
Manufacturer Part Number
pi2eqx8804
Description
8.0gbps, 4-lane Pcie 3.0 Redrivertm With Equalization And Emphasis
Manufacturer
Pericom Semiconductor Corporation
Datasheet
1.PI2EQX8804.pdf
(1 pages)
New Product Databrief
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.
PI2EQX8804
8.0Gbps, 4-Lane PCIe
Pericom Semiconductor’s PI2EQX8804 is a low power
PCIe® 3.0 (8Gbps) ReDriver™. The device provides
programmable equalization, pre-emphasis, and output
voltage swing control via configuration pins (Pin Strap) or
I
by reducing Inter-symbol interference (ISI). The PI2EQX8804
also provides advanced features such as bi-directional loop
back functionality for easy debug, a selectable signal detector
threshold, and I
The integrated equalization circuitry provides flexibility
with signal integrity of the PCIe signal before the ReDriver,
whereas the integrated pre-emphasis circuitry provides
flexibility with signal integrity of the signal after the ReDriver.
In addition to providing signal reconditioning, Pericom’s
PI2EQX8804 also provides power management stand-by mode
operated by a power-down pin.
Block Diagram
2
+
–
C/SMBus to optimize over a variety of physical mediums
Internal bias
+
+
Input
CML
Conditional
Input
2
C/SMBus programmability just to name a few.
Power
Equalizer
Equalization
X
DC Offset
Limiting
Cancel
®
Amp
3.0 ReDriver
Pre-Emph
Control
Detect
Buffer
Delay
Buffer
Load
Swing
Control
www.pericom.com | 1-408-435-0800
+
TM
CML
with Equalization and Emphasis
Conditional
V
DD
O
+
Figure1
• 8 differential channels, support x4 lane PCIe®
• Fully Compatible with PCIe 3.0 compliant channels
• Selectable adjustment of receiver equalization, output
• Selectable input termination between 50Ω to
• Selectable output termination between 50Ω to
• Control on Standby and output enable
• Dual programmability between I
• 3-bit selectable address bits for I
• Support I
• 2-bit threshold adjustment for signal detector
• Single supply: 1.5V
• Packaging (Pb-free & Green): 100-contact LBGA (NJ)
• Transparent to In Band Link Training Signals
Features
ReDriver
1.0/2.0/3.0 application
swing and pre-emphasis
V
V
Configurability via select pin
PCIe 3.0
Blade Server
DD
DD
and 2KΩ to V
and Hi-Z
2
C and SMBus format
PCIe 3.0 Cable
DD
2
2
C/SMBus and Pin
C
External Storage
Device