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MAX4951
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


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Data Sheet
FULL DATA SHEET (PDF, 248kB)
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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.

Key Features   Applications/Uses
  • 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
  • In-Line Signal Traces for Flow-Through Layout
  • Space-Saving, 4mm x 4mm, TQFN Package

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

    Key Specifications:   Switches and Multiplexers (Low Voltage)
    Part Number Configuration Number of Channels Normally (Open/Closed) VSUPPLY, Single (min) (V) VSUPPLY, Single (max) (V) Bandwidth (MHz) Price**
    MAX4951  Re-Driver 2 Bi-Directional 3 3.6 5,000 $1.50 @ 1k
    See All Switches and Multiplexers (Low Voltage) (128)
    Notes:
    **This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

    Application Notes
  • Application Note 4257: Using the MAX4951 SATA Bidirectional Redriver to Drive eSATA Cable - MAX4951

    Evaluation Kits
  • MAX4951EVKIT

    Design Guides
  • Mux & Switch (PDF)

    Reliability Reports
  • Show FIT data for:
  • Request Reliability Report for:

    Software/Models
  • MAX4951 Spice Model

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-2 of 2

    MAX4951 Free
    Sample
    Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX4951CTP+T  
    THIN QFN;20 pin;
    Dwg: 21-0139 (PDF)
    Use pkgcode/variation: T2044+2*
    0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4951CTP+  
    THIN QFN;20 pin;
    Dwg: 21-0139 (PDF)
    Use pkgcode/variation: T2044+2*
    0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis

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    Document Ref.: 19-4178; Rev 0; 2008-06-27
    This page last modified: 2008-11-04



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