LMK03002

ACTIVE

1566 to 1724-MHz, 800-fs RMS jitter, precision clock conditioner with integrated VCO

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Product details

Parameters

Function Clock generator Number of outputs 4 Output frequency (Max) (MHz) 862 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 VCO, uWire Rating Catalog open-in-new Find other Clock generators

Package | Pins | Size

WQFN (RHS) 48 49 mm² 7 x 7 open-in-new Find other Clock generators

Features

  • Integrated VCO with Very Low Phase Noise Floor
  • Integrated Integer-N PLL with Outstanding Normalized Phase Noise Contribution of
    -224 dBc/Hz
  • Clock Generator Performance (10 Hz - 20 MHz)
    • LMK03002C: 200 fs RMS Jitter
  • Jitter Cleaner Performance Grade (12 kHz to 20 MHz)
    • LMK03002: 800 fs RMS Jitter
    • LMK03002C: 400 fs RMS Jitter
  • VCO Frequency: 1566 to 1724 MHz
  • Clock Output Frequency Range of 1 to 862 MHz
  • 4 LVPECL Clock Outputs
  • Partially Integrated Loop Filter
  • 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 WQFN (7.0 x 7.0 x 0.8 mm)

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Description

The LMK03002/LMK03002C precision clock conditioners combine the functions of jitter cleaning/reconditioning, multiplication, and distribution of a reference clock. The devices integrate a Voltage Controlled Oscillator (VCO), a high performance Integer-N Phase Locked Loop (PLL), a partially integrated loop filter, and four LVPECL clock output distribution blocks.

The VCO output is optionally accessible on the Fout port. Internally, the VCO output goes through a VCO Divider to feed the various clock 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 four system components.

The clock conditioners come in a 48-pin WQFN package and are 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 LMK03002 /LMK03002C Precision Clock Conditioner with Integrated VCO datasheet (Rev. E) Apr. 16, 2013
Technical article How to select an optimal clocking solution for your FPGA-based design Dec. 09, 2015
Technical article Clocking sampled systems to minimize jitter Jul. 31, 2014
Technical article Timing is Everything: How to optimize clock distribution in PCIe applications Mar. 28, 2014
Application note AN-1821 CPRI Repeater System (Rev. A) Apr. 26, 2013
Application note AN-1865 Frequency Synthesis and Planning for PLL Architectures (Rev. C) Apr. 26, 2013
User guide Precision Clock Conditioner with Integrated VCO (1566 - 1724 MHz) Jan. 26, 2012
User guide Clock Conditioner Owner's Manual Nov. 10, 2006

Design & development

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

Hardware development

EVALUATION BOARD Download
document-generic User guide
299
Description

The LMK03002C Evaluation Board simplifies evaluation of the LMK03002C Precision Clock Conditioner with Integrated VCO. The package consists of an Evaluation Board, Evaluation Board Instructions, and a cable for programming the device through a PC parallel port. Code-Loader is the software used to (...)

Software development

APPLICATION SOFTWARE & FRAMEWORK Download
Clock Design Tool - Loop Filter & Device Configuration + Simulation
CLOCKDESIGNTOOL 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 (...)
IDE, CONFIGURATION, COMPILER OR DEBUGGER Download
CodeLoader Software for device register programming
CODELOADER 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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Design tools & simulation

SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
DESIGN TOOL Download
Clock tree architect programming software
CLOCK-TREE-ARCHITECT 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.
Features
  • Accepts customer specific design requirements such as input frequencies, output frequencies, clock formats and clock counts
  • Generates clock trees by taking into account a variety of advanced specifications, such as noise floor and phase determinism requirements
  • Presents clear and intuitive block (...)

CAD/CAE symbols

Package Pins Download
WQFN (RHS) 48 View options

Ordering & quality

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  • Ongoing reliability monitoring

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