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SATA I/SATA II Bidirectional Re-Driver

Dual-Channel Buffer Allows System to Support SATA Gen III Data Rates Over Long Cables and Through Connectors

Product Details

Key Features

Parametric specs for Repeaters and Buffers (SAS, SATA, PCIe, USB)
Functions Re-Driver
Interface SATA
Data Rate (Mbps) (max) 3000
VSUPPLY (V) 3.3
ICC (mA) (typ) 70
# Channels 2
Package/Pins TQFN/20
Oper. Temp. (°C) 0 to +70
Budgetary
Price (See Notes)
3.2
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Simplified Block Diagram

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Parameters

Parametric specs for Repeaters and Buffers (SAS, SATA, PCIe, USB)
Functions Re-Driver
Interface SATA
Data Rate (Mbps) (max) 3000
VSUPPLY (V) 3.3
ICC (mA) (typ) 70
# Channels 2
Package/Pins TQFN/20
Oper. Temp. (°C) 0 to +70
Budgetary
Price (See Notes)
3.2

Key Features

  • Single +3.3V (typ) Supply Operation
  • Supports SATA I (1.5Gbps) and SATA II (3.0Gbps)
  • Supports up to 6.0Gbps for Next-Generation Applications
  • Meets SATA I, SATA II Input-/Output-Return Loss Mask
  • Supports eSATA Levels
  • Supports SATA Out-of-Band (OOB) Signaling
  • Internal Input/Output 50Ω Termination Resistors
  • Inline Signal Traces for Flow-Through Layout
  • ESD Protection on All Pins: ±5.5kV
  • Space-Saving, 4mm x 4mm, TQFN Package

Applications/Uses

  • Data Storage/Workstations
  • Desktop Computers
  • Docking Stations
  • Notebook Computers
  • Servers

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-compatible 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) supply 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 operating temperature range.

Simplified Block Diagram

MAX4951: Typical Application Circuit MAX4951: Typical Application Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .