New Product Databrief
www.pericom.com | 1-408-435-0800
PI2EQX6812
6.5Gbps 2-Lane (4-channel)SAS2/SATA/XAUI ReDriver™ with
Equalization & De-emphasis
Features
• Up to 6.5Gbps SAS2/SATA/XAUI ReDriver™
• Supporting 4 differential channels or 2 lane
• Independent channel configuration
• Pin strap and I
2
C configuration controls (3.3V Tolerant)
• Adjustable receiver equalization
• Adjustable transmitter amplitude and de-emphasis
• Adjustable input threshold level
• 50-Ohm input/output termination
• Mux/Demux and loop-back features
• OOB fully supported
• Single supply voltage, 1.2V ± 0.05V
• Active current per channel -95mA (typical)
• Power down standby mode
• Standby current -1mA (typical)
• Automatic slumber mode power savings
• Slumber current per channel -10mA (typical)
• Packaging (Pb-free & Green):
• 42-contact TQFN (9mm x3.5mm)
Pericom Semiconductor’s PI2EQX6812 is a low power, SAS2,
2-lane (4 differential channels) SATA, XAUI signal ReDriver™.
The device provides programmable equalization, amplifica-
tion, and de-emphasis by either pin strapping option or I
2
C
Control, to optimize performance over a variety of physical
mediums by reducing Inter-symbol interference.
PI2EQX6812 supports four 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 flexibility with
signal integrity of the signal before the ReDriver, whereas the
integrated de-emphasis circuitry provides flexibility with signal
integrity of the signal after the ReDriver.
In addition to providing signal re-conditioning, Pericom’s
PI2EQX6812 also provides power management Stand-by
mode operated by a Power Down pin, or through I
2
C register.
When the input is idle, the device goes to power saving slum-
ber mode
Block Diagram
+
−
+
−
+
−
+
−
+
−
+
−
xyRx+
xyRx-
xyTx+
xyTx-
xyTx-
xyTx+
xyRx+
xyRx-
Equalizer
Equalizer
Channel A0-1
Input�level�detect
to�control�logic
Output
Controls
Output
Controls
Control�Registers
&�Logic
Power
Management
I
2
C�Control
SELy_x
Dy_x
PD#
SDA
SCL
Mode
Ax
Input�level�detect
to�control�logic
Channels B0-1
Applications
• Data Center Server, Blade server, Storage System
