Texas Instruments LMK1C1108 User Manual
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Texas Instruments LMK1C1108 User Manual

Low-additive, phase-noise lvcmos clock buffer evaluation board
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User's Guide
LMK1C1108 Low-Additive, Phase-Noise LVCMOS Clock
Buffer Evaluation Board
The LMK1C1108 is a high-performance, low additive jitter LVCMOS clock buffer with one LVCMOS input, eight
LVCMOS outputs, and a global output enable pin.
This evaluation module (EVM) is designed to demonstrate the electrical performance of the LMK1C1108.
Throughout this document, the acronym EVM and the phrases evaluation module and evaluation board are
synonymous with the LMK1C1108EVM.
The LMK1C1108EVM is equipped with 50-Ω SMA connectors and impedance-controlled 50-Ω microstrip
transmission lines for best performance.
SNAU262A – DECEMBER 2020 – REVISED JANUARY 2021
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ABSTRACT
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Figure 1-1. LMK1C1108EVM
Copyright © 2021 Texas Instruments Incorporated
LMK1C1108 Low-Additive, Phase-Noise LVCMOS Clock Buffer Evaluation
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Summary of Contents for Texas Instruments LMK1C1108

  • Page 1 ABSTRACT Figure 1-1. LMK1C1108EVM The LMK1C1108 is a high-performance, low additive jitter LVCMOS clock buffer with one LVCMOS input, eight LVCMOS outputs, and a global output enable pin. This evaluation module (EVM) is designed to demonstrate the electrical performance of the LMK1C1108.

  • Page 2: Table Of Contents

    4-1. Alternatively, connect the power-supply source to TP1, and connect the ground of the power-supply to TP2. Decoupling capacitors and a ferrite bead isolate the EVM power from the LMK1C1108 device power pins. TP1 and TP2: Connect VDD to TP1...

  • Page 3: Enabling And Disabling The Outputs

    Enabling and Disabling the Outputs 5 Enabling and Disabling the Outputs The enable pin, 1G, of the LMK1C1108 can be controlled using jumper J3. Pull 1G to VDD by shunting pins 2 and 3 of J3 to enable the outputs as shown in Figure 5-1.

  • Page 4: Bill Of Materials

    In compliance with the Article 33 provision of the EU REACH regulation, we are notifying you that this EVM includes components containing at least one Substance of Very High Concern (SVHC) above 0.1%. These uses from Texas Instruments do not exceed 1 ton per year. Table 7-1 provides the SVHC list: Table 7-1.

  • Page 5: Schematic

    SMA connector SMA connector SMA connector Figure 8-1. LMK1C1108 Schematic SNAU262A – DECEMBER 2020 – REVISED JANUARY 2021 LMK1C1108 Low-Additive, Phase-Noise LVCMOS Clock Buffer Evaluation Board Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...

  • Page 6: Revision History

    Updated Power Supply Connection Locations image..................2 • Deleted text before image...........................3 • Updated J3 Jumper Location image........................LMK1C1108 Low-Additive, Phase-Noise LVCMOS Clock Buffer Evaluation SNAU262A – DECEMBER 2020 – REVISED JANUARY 2021 Board Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
  • Page 7 STANDARD TERMS FOR EVALUATION MODULES Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms set forth herein.
  • Page 8 www.ti.com Regulatory Notices: 3.1 United States 3.1.1 Notice applicable to EVMs not FCC-Approved: FCC NOTICE: This kit is designed to allow product developers to evaluate electronic components, circuitry, or software associated with the kit to determine whether to incorporate such items in a finished product and software developers to write software applications for use with the end product.
  • Page 9 www.ti.com Concernant les EVMs avec antennes détachables Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à...
  • Page 10 www.ti.com EVM Use Restrictions and Warnings: 4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS. 4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling or using the EVM, including without limitation any warning or restriction notices.
  • Page 11 Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief in any United States or foreign court. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2019, Texas Instruments Incorporated...
  • Page 12 TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products.IMPORTANT NOTICE Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2021, Texas Instruments Incorporated...

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