New Product Databrief
www.pericom.com | 1-408-435-0800
PI2EQX4951SL
1-port, SATA2 i/m ReDriver™ with Analog/Digital Conguration
Block Diagram
Features
• SATA2 i/m; external SATA2
• Two 3.0Gbps differential signal pairs
• Independent Digital Output Emphasis Control
• 100-Ohm Differential CML I/O’s
• Input signal level detect and squelch for each channel
• OOB Support
• Enhanced Mode Features:
à Adjustable Receiver Equalization
à Independent Analog Output Emphasis Control
• High impedance I/O termination in stand-by mode
• Low Power Operation: 150mW typ.
• Auto-Slumber Mode: 30mW
• Power down Stand-by Mode: 0.04mW
• Supply Voltage: 1.4V to 1.9V
• Packaging: 20-TQFN (4x4mm)
Pericom Semiconductor’s PI2EQX4951SL is a low power, signal
ReDriver. The device provides programmable equalization, to
optimize performance over a variety of physical mediums by
reducing Inter-Symbol Interference. PI2EQX4951SL supports two
100-Ohm Differential CML data I/O’s between the Protocol
ASIC to a switch fabric, across a backplane, or to extend 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.
A low-level input signal detection and output squelch function
is provided for each channel. Each channel operates fully
independently. When the channels are enabled (EN=1) and
operating, that channels input signal level (on xI+/-) determines
whether the output is active. If the input signal level of the
channel falls below the active threshold level (Vth-) then the
outputs are driven to the common mode voltage.
In addition to signal conditioning, when EN = 0, the device
enters a low power standby mode.
EN
x_EQ
x_EM
xl+
xl-
xO+
xO-
Limiting
Amp
Equalizer
Power
Management
Control
Circuit
- Repeated 2 times -
CML
CML
Signal Detection
External SATA
Disk Drive
2m SATA
SATA
ReDriver
NotebookPC
HDD
Chipset
External SATA
port
SATA
links
Application of PI3EQX4951SL in NB PC application
