Top

Product details

Parameters

Function Clock divider Additive RMS jitter (Typ) (fs) 50 Output frequency (Max) (MHz) 3100 Number of outputs 12 Output supply voltage (V) 3.3 Core supply voltage (V) 3.3 Output skew (ps) 3 Features Pin programmable, uWire Operating temperature range (C) -40 to 85 Rating Catalog Output type LVCMOS, LVDS, LVPECL Input type LVDS open-in-new Find other Clock buffers

Package | Pins | Size

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

Features

  • Pin Control Mode or MICROWIRE (SPI)
  • Input and Output Frequency Range 1 kHz to 3.1 GHz
  • Separate Input for Clock Output Banks A & B.
  • 14 Differential Clock Outputs in Two Banks (A & B)
    • Output Bank A
      • 8 Differential, Programmable Outputs (Up to 8 as LVCMOS)
      • Divider Values of 1 to 8, Even and Odd.
    • Output Bank B
      • 6 Differential Outputs (or up to 12 as LVCMOS)
      • Divides Values of 1 to 1045 or 1 to 8, Even and Odd
      • Analog and Digital Delays
  • 50% Duty Cycle on All Outputs for All Divides
  • Separate Synchronization of Bank A and B.
  • RMS Additive Jitter 50 fs at 800 MHz
    • 50 fs RMS Additive Jitter (12 kHz to 20 MHz)
  • Industrial Temperature Range: –40 to 85°C
  • 3.15 V to 3.45 V Operation

All trademarks are the property of their respective owners.

open-in-new Find other Clock buffers

Description

The LMK01801 is a very low noise solution for clocking systems that require distribution and frequency division of precision clocks.

The LMK01801 features extremely low residual noise, frequency division, digital and analog delay adjustments, and fourteen (14) programmable differential outputs: LVPECL, LVDS and LVCMOS (2 outputs per differential output).

The LMK01801 features two independent inputs that can be driven differentially (LVDS, LVPECL) or in single-ended mode (LVCMOS, RF Sinewave). The first input drives output Bank A consisting of eight (8) outputs. The second input drives output Bank B consisting of six (6) outputs.

open-in-new Find other Clock buffers
Download

Technical documentation

star = Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 2
Type Title Date
* Data sheet LMK01801 Dual Clock Divider Buffer datasheet (Rev. C) Nov. 11, 2019
User guide LMK01801BEVAL Evaluation Board Operating Instructions (Rev. A) Feb. 28, 2018

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
349
Description
The LMK01801 Evaluation Kit simplifies evaluation of the LMK01801 3.1 GHz Dual Clock Divider Buffer. The package consists of an Evaluation Board, Evaluation Board Instructions, and a cable for programming the device through a PC parallel port. CodeLoader 4 is the software used to program the (...)

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 (...)
APPLICATION SOFTWARE & FRAMEWORK Download
Texas Instruments Clocks and Synthesizers (TICS) Pro Software
TICSPRO-SW 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.
Features
  • Program EVMs through the USB2ANY Interface Adaptor or onboard USB interface.
  • Export programming configurations for use in end application.
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

Loop (...)

Design tools & simulation

SIMULATION MODEL Download
SNAM094A.ZIP (63 KB) - IBIS Model
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

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos