MAX9491

PRODUCTION

Factory-Programmable, Single PLL Clock Generator

Data Sheet (Rev. 0) Product Selection Table
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Overview

  • 5MHz to 35MHz for Crystal-Clock Reference
  • 5MHz to 50MHz for a Driver Clock Reference
  • One Fractional-N PLL with Buffered Output
  • 4MHz to 200MHz Output Frequency Range
  • Low RMS Jitter PLL (< 13ps) at 197 MHz
  • Integrated VCXO with ±200ppm Tuning Range
  • Available in 14-Pin TSSOP and 20-Pin TQFN Packages
  • +3.3V Supply
  • -40°C to +85°C Temperature Range

    • The MAX9491 multipurpose clock generator is ideal for communication applications. It offers a factory-programmable PLL output that can be set to almost any frequency, ranging from 4MHz to 200MHz. The MAX9491 uses a one-time-programmable (OTP) ROM to program the PLL output. The MAX9491 also features an integrated voltage-controlled crystal oscillator (VCXO) that is tuned by a DC voltage. The VCXO output is used as the PLL input. The VCXO has a wide ±200ppm (typ) tuning range. The OTP on the MAX9491 is factory preset, based upon the customer request. Contact the factory for samples with preferred frequencies.

    The device operates from a 3.3V supply and is specified over the -40°C to +85°C extended temperature range. The MAX9491 is available in 14-pin TSSOP and 20-pin TQFN (5mm x 5mm) packages.

    Applications

    • Data Networking Systems
    • Home Entertainment Centers
    • SOHO
    • Telecommunications
    MAX9491
    Factory-Programmable, Single PLL Clock Generator
    MAX9491: Typical Operating Circuit
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    Documentation

    Data Sheet 1

    Reliability Data 1

    Design Note 1

    Technical Articles 2

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    Software Resources

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    Hardware Ecosystem

    Parts Product Life Cycle Description
    Clock ICs 1
    MAX9485
    		Programmable Audio Clock Generator
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