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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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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 244kB)
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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.

An evaluation kit is available:  MAX4951EVKIT  

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
  • Inline Signal Traces for Flow-Through Layout
  • ESD Protection on All Pins: ±5.5kV
  • Space-Saving, 4mm x 4mm, TQFN Package
 

Key Specifications:  Switches and Multiplexers (Low Voltage)
Part Number Protocol Functions Channels Normal Position VSUPPLY (Single)
(V)
VSUPPLY (Single)
(V)
BW
(MHz)
Price
min max See Notes
MAX4951  eSATA Re-Driver 2 Bi-Directional 3 3.6 5000 $1.50 @1k
See All Switches and Multiplexers (Low Voltage) (160)

Diagram
MAX4951: Typical Application Circuit
Typical Application Circuit

Application Notes
  • Application Note 4257: Using the MAX4951 SATA Bidirectional Redriver to Drive eSATA Cable - MAX4951
  • Evaluation Kits
  • MAX4951EVKIT
  • Design Guides
  • Signal Routing & Protection (PDF)
  • Reliability Reports
  • Reliability Report: MAX4951.pdf
  • Show FIT data for:

    Software/Models
  • MAX4951 Macromodel

    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 Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX4951CTP+T    
    Active TQFN;20 pin;16.8 mm²
    Outline Drawing: 21-0139 (PDF)
    Land Pattern: 90-0036 (PDF)
    Use pkgcode/variation: T2044+2*
    0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4951CTP+  
    Active TQFN;20 pin;16.8 mm²
    Outline Drawing: 21-0139 (PDF)
    Land Pattern: 90-0036 (PDF)
    Use pkgcode/variation: T2044+2*
    0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    More Information
  • New Product Press Release 2009-05-26 

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    Document Ref.: 19-4178; Rev 1; 2009-05-29
    This page last modified: 2009-08-17


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