MAX4951.pdf

General Description
The MAX4951 dual-channel buffer is designed to re-drive
serial-ATA (SATA) I and SATA II signals and is functional
up to 6.0Gbps for next-generation data rates. The
MAX4951 can be placed near an eSATA connector to
overcome board losses and produce an eSATA-compati-
ble signal level.
The MAX4951 preserves signal integrity at the receiver by
reestablishing full output levels, and can reduce the total
system jitter (TJ) by squaring up the signal. This device
features channel-independent digital boost controls to
drive SATA outputs over longer trace lengths, or to meet
eSATA specifications. SATA Out-Of-Band (OOB) signaling
is supported using high-speed amplitude detection on the
inputs, and squelch on the corresponding outputs. Inputs
and outputs are all internally 50Ω terminated and must be
AC-coupled to the SATA controller IC and SATA device.
The MAX4951 operates from a single +3.3V (typ) sup-
ply and is available in a small, 4mm x 4mm, TQFN
package with flow-through traces for ease of layout.
This device is specified over the 0°C to +70°C operat-
ing temperature range.
Applications
Servers
Desktop Computers
Notebook Computers
Docking Stations
Data Storage/Workstations