PI2EQX6874 Datasheet, PDF (1/1 Pages) Pericom Semiconductor Corporation – 6.5Gbps 4-Lane SAS2/SATA3/XAUI ReDriver

New Product Databrief
PI2EQX6874
6.5Gbps 4-Lane SAS2/SATA3/XAUI ReDriver™with Equalization,
De-emphasis and Flow-through pinout
Pericom Semiconductor’s PI2EQX6874 is a 6.5Gbps low
power, 4 lane (8-channel) SAS2, SATA3, XAUI signal ReDriver.
The device provides programmable equalization, amplifi-
cation, and de-emphasis by I²C control, to optimize per-
formance over a variety of physical mediums by reducing
Inter-symbol interference.
PI2EQX6874 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 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
PI2EQX6874 also provides power management Stand-by
mode operated by a Power Down pin, or through I²C register.
When input is idle, the device goes into power saving Slumber
mode.
Block Diagram
xyRx+
xyRx-
xyTx+
xyTx-
+
−
+
− _Equalizer
Input�level�detect
to�control�logic
Output
Controls
+
−
xyTx+
xyTx-
+
−
Output
Controls
A
B
Input�level�detect
to�control�logic
Equalizer
+
−
+
−
Data�Lane�Repeats�4�Times
xyRx+
xyRx-
Features
• Up to 6.5Gbps SAS2/SATA3/XAUI ReDriver
• Supporting 8 differential channels or 4 lanes
• Per channel I2C configuration controls (3.3V Tolerant)
• Adjustable receiver equalization
• Adjustable transmitter amplitude and de-emphasis
• 50-Ohm input/output termination
• Mux/Demux feature
• Channel loop-back
• OOB fully supported
• Single supply voltage, 1.2V ± 5%
• Active Current per channel - 95mA (typical)
• Power down modes
• Slumber current per channel -10mA (typical)
• Standby current -1mA (typical)
• Industrial temperature range: -40°C to 85°C
• Packaging: 56-contact TQFN (5mm x 11mm)
Applications
• Data Center Server, Blade server, Storage System
SELy_x
Sy_x
Dy_x
PRE_x
Control�Registers
&�Logic
Mode
LB#
PD#
Power
Management
SDA
SCL
I²C�Control
Ax
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