Product details

Function Clock generator Number of outputs 4 Output frequency (Max) (MHz) 800 Core supply voltage (V) 3.3 Output supply voltage (V) 3.3 Input type LVCMOS, LVPECL Output type LVPECL Operating temperature range (C) -40 to 85 Features Integrated integer-N PLL, uWire Rating Catalog
Function Clock generator Number of outputs 4 Output frequency (Max) (MHz) 800 Core supply voltage (V) 3.3 Output supply voltage (V) 3.3 Input type LVCMOS, LVPECL Output type LVPECL Operating temperature range (C) -40 to 85 Features Integrated integer-N PLL, uWire Rating Catalog
WQFN (RHS) 48 49 mm² 7 x 7

  • 20 fs additive jitter
  • Integrated Integer-N PLL with outstanding normalized phase noise contribution of -224 dBc/Hz
  • Clock output frequency range of 1 to 800 MHz
  • 4 LVPECL clock outputs
  • Dedicated divider and delay blocks on each clock output
  • Pin compatible family of clocking devices
  • 3.15 to 3.45 V operation
  • Package: 48 pin LLP (7.0 x 7.0 x 0.8 mm)

  • Target Applications

  • Data Converter Clocking
  • Networking, SONET/SDH, DSLAM
  • Wireless Infrastructure
  • Medical
  • Test and Measurement
  • Military / Aerospace

  • 20 fs additive jitter
  • Integrated Integer-N PLL with outstanding normalized phase noise contribution of -224 dBc/Hz
  • Clock output frequency range of 1 to 800 MHz
  • 4 LVPECL clock outputs
  • Dedicated divider and delay blocks on each clock output
  • Pin compatible family of clocking devices
  • 3.15 to 3.45 V operation
  • Package: 48 pin LLP (7.0 x 7.0 x 0.8 mm)

  • Target Applications

  • Data Converter Clocking
  • Networking, SONET/SDH, DSLAM
  • Wireless Infrastructure
  • Medical
  • Test and Measurement
  • Military / Aerospace

  • The LMK02002 precision clock conditioner combines the functions of jitter cleaning/reconditioning, multiplication, and distribution of a reference clock. The device integrates a high performance Integer-N Phase Locked Loop (PLL), and four LVPECL clock output distribution blocks.

    Each clock distribution block includes a programmable divider, a phase synchronization circuit, a programmable delay, a clock output mux, and an LVPECL output buffer. This allows multiple integer-related and phase-adjusted copies of the reference to be distributed to eight system components.

    The clock conditioner comes in a 48-pin LLP package and is footprint compatible with other clocking devices in the same family.


    The LMK02002 precision clock conditioner combines the functions of jitter cleaning/reconditioning, multiplication, and distribution of a reference clock. The device integrates a high performance Integer-N Phase Locked Loop (PLL), and four LVPECL clock output distribution blocks.

    Each clock distribution block includes a programmable divider, a phase synchronization circuit, a programmable delay, a clock output mux, and an LVPECL output buffer. This allows multiple integer-related and phase-adjusted copies of the reference to be distributed to eight system components.

    The clock conditioner comes in a 48-pin LLP package and is footprint compatible with other clocking devices in the same family.


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    Technical documentation

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    Type Title Date
    * Data sheet LMK02002 Precision Clock Conditioner with Integrated PLL datasheet 16 Aug 2007
    Technical article How to select an optimal clocking solution for your FPGA-based design 09 Dec 2015
    Technical article Clocking sampled systems to minimize jitter 31 Jul 2014
    Technical article Timing is Everything: How to optimize clock distribution in PCIe applications 28 Mar 2014
    Application note AN-1821 CPRI Repeater System (Rev. A) 26 Apr 2013
    Design guide Clock Conditioner Owner's Manual 10 Nov 2006

    Design & development

    For additional terms or required resources, click any title below to view the detail page where available.

    Application software & framework

    CLOCKDESIGNTOOL — Clock Design Tool - Loop Filter & Device Configuration + Simulation

    The Clock Design Tool software helps with part selection, loop filter design and simulation of timing device solutions. When you enter desired output frequencies and a reference frequency (optional), the tool provides TI devices to meet the specified requirements, divider values and a recommended (...)
    Application software & framework

    TICSPRO-SW — Texas Instruments Clocks and Synthesizers (TICS) Pro Software

    The TICS Pro software is used to program the evaluation modules (EVMs) for device numbers with these prefixes: CDC, LMK and LMX. These devices include PLLs and voltage-controlled oscillators (PLL+VCO), synthesizers and clocking devices.
    IDE, configuration, compiler or debugger

    CODELOADER — CodeLoader Software for device register programming

    The CodeLoader 4 software is used to program the LMX PLLs and LMK timing devices through either the USB or line print terminal (LPT) port of a computer. This software also provides information on how to program the device by showing the bits that are actually sent.


    Which software do I use?

    Product

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    Simulation tool

    PSPICE-FOR-TI — PSpice® for TI design and simulation tool

    PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
    Design tool

    CLOCK-TREE-ARCHITECT — Clock tree architect programming software

    Clock tree architect is a clock tree synthesis tool that streamlines your design process by generating clock tree solutions based on your system requirements. The tool pulls data from an extensive database of clocking products to generate a system-level multi-chip clocking solution.
    Package Pins Download
    WQFN (RHS) 48 View options

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