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MAX9486
8kHz Reference Clock Synthesizer with Multiple Outputs at 35.328MHz

Clock Generator Optimized for xDSL CO Line Cards and Telecom Systems Requiring Low-Jitter Clock Outputs


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 552kB)
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Description
The MAX9486 low-cost, high-performance clock synthesizer with an 8kHz input reference clock provides six buffered LVTTL clock outputs at 35.328MHz. The clock synthesizer can be used to generate the clocks for T1, E1, T3, E3, and xDSL.

The MAX9486 has two phase-lock loops (PLLs). The first PLL uses a voltage-controlled crystal oscillator (VCXO). The second PLL is a frequency multiplier. With the two PLLs, the MAX9486 generates the output frequency at 35.328MHz. In addition, this device generates a jitter-suppressed 8kHz output that provides a better source for the reference clock relay.

The MAX9486 is available in a 24-pin TSSOP package and operates over the extended operating temperature range of -40°C to +85°C and a single +3V to +3.6V power-supply range.

An evaluation kit is available:  MAX9486EVKIT  

Key Features   Applications/Uses
  • 8kHz Input Reference CLK
  • High-Jitter Rejection on the Reference CLK
  • Synthesizer Locks to the 8kHz Reference with a ±200ppm Range
  • Output Frequency: 35.328MHz
  • Six Buffered LVTTL Low-Jitter Outputs
  • One 8kHz Reference CLK Relay Output
  • +3.3V Supply Operation
  • 24-Pin TSSOP Package

     
  • Telecom Equipment Using T1, E1, T3, E3, and ISDN Protocols
  • xDSL Equipment in CO with Interface to the Telecom Protocols

    Diagram
    MAX9486: Typical Application Circuit
    Typical Application Circuit

    Application Notes
  • Application Note 3359: Clock (CLK) Jitter and Phase Noise Conversion - MAX9486
  • Application Note 3437: Solutions for Integrated Clock Sources Using the MAX9489/MAX9471 Multiple-Output Clock Generators - MAX9486

    Evaluation Kits
  • MAX9486EVKIT

    Design Guides
  • Interface (PDF)

    Reliability Reports
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    Software/Models
    none

    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

    MAX9486 Free
    Sample
    Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX9486EUG  
    Active TSSOP;24 pin;52.4 mm²
    Outline Drawing: 21-0066 (PDF)
    Land Pattern: 90-0118 (PDF)
    Use pkgcode/variation: U24-1*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX9486EUG-T    
    Active

    Land Pattern: Not Available

    -40°C to +85°C See data sheet

    More Information
  • New Product Press Release 2004-08-27 
  • Product Ad: Download

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    Document Ref.: 19-3345; Rev 0; 2004-08-10
    This page last modified: 2005-07-06


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