background image

User’s Guide

LMK1C1104DQF Low-Additive, Phase-Noise LVCMOS 
Clock Buffer Evaluation Board

ABSTRACT

The LMK1C1104DQF is a high-performance, low additive jitter LVCMOS clock buffer with one LVCMOS input, 
four LVCMOS outputs, and a global output enable pin.

This evaluation module (EVM) is designed to demonstrate the electrical performance of the LMK1C1104DQF. 
Throughout this document, the acronym EVM and the phrases evaluation module and evaluation board are 
synonymous with the LMK1C1104DFNEVM.

The EVM is equipped with 50-Ω SMA connectors and impedance-controlled 50-Ω microstrip transmission lines 
for best performance.

Figure 1-1. LMK1C1104DFNEVM

www.ti.com

SNAU268 – JUNE 2021

Submit Document Feedback

LMK1C1104DQF Low-Additive, Phase-Noise LVCMOS Clock Buffer 

Evaluation Board

1

Copyright © 2021 Texas Instruments Incorporated

Summary of Contents for LMK1C1104DQF

Page 1: ...electrical performance of the LMK1C1104DQF Throughout this document the acronym EVM and the phrases evaluation module and evaluation board are synonymous with the LMK1C1104DFNEVM The EVM is equipped with 50 Ω SMA connectors and impedance controlled 50 Ω microstrip transmission lines for best performance Figure 1 1 LMK1C1104DFNEVM www ti com SNAU268 JUNE 2021 Submit Document Feedback LMK1C1104DQF L...

Page 2: ...supply Clock output traces are length matched 2 Signal Path and Control Circuitry The LMK1C1104DFNEVM supports single ended inputs up to 250 MHz For more information about the LMK1C1104DQF see the LMK1C1104 product data sheet available for download from the TI Web site www ti com 3 Getting Started The LMK1C1104DFNEVM has self explanatory labeling and uses similar naming conventions as the LMK1C110...

Page 3: ...perates from a single 3 3 V 2 5 V 1 8 V supply 5 Enabling Disabling the Outputs The enable pin 1G of the LMK1C1104DQF 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 Leave 1G floating or pull to GND to disable the outputs Figure 5 1 J3 Jumper Location By default a shunt is placed on pins 2 and 3 to enable the outputs www ...

Page 4: ...39544 3002 Lead 7439 92 1 Table 7 2 Bill of Materials DESIGNATOR QTY VALUE PACKAGE REFERENCE PART NUMBER MANUFACTURER C1 1 10uF 0805 C0805C106K8PACTU Kemet C2 1 1uF 0603 C0603X105J8RAC7867 Kemet C3 C4 C5 3 0 1uF 0402 C0402C104K8RACAUTO Kemet H1 H2 H3 H4 4 4 40 0 25 Screw NY PMS 440 0025 PH B F Fastener Supply H5 H6 H7 H8 4 0 5 Standoff 1902C Keystone J1 1 Terminal Block TH 039544 3002 Molex J2 J4 ...

Page 5: ...e 8 1 LMK1C1104DFNEVM Schematic www ti com Schematic SNAU268 JUNE 2021 Submit Document Feedback LMK1C1104DQF Low Additive Phase Noise LVCMOS Clock Buffer Evaluation Board 5 Copyright 2021 Texas Instruments Incorporated ...

Page 6: ...other than TI b the nonconformity resulted from User s design specifications or instructions for such EVMs or improper system design or c User has not paid on time Testing and other quality control techniques are used to the extent TI deems necessary TI does not test all parameters of each EVM User s claims against TI under this Section 2 are void if User fails to notify TI of any apparent defects...

Page 7: ... These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation...

Page 8: ...y for convenience and should be verified by User 1 Use EVMs in a shielded room or any other test facility as defined in the notification 173 issued by Ministry of Internal Affairs and Communications on March 28 2006 based on Sub section 1 1 of Article 6 of the Ministry s Rule for Enforcement of Radio Law of Japan 2 Use EVMs only after User obtains the license of Test Radio Station as provided in R...

Page 9: ... any interfaces electronic and or mechanical between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electrical shock hazard User assumes all responsibility and liability for any improper or unsafe handling or use of the EVM by User or its employees affiliates contractors or designees 4 4 User assumes all...

Page 10: ...OR DAMAGES ARE CLAIMED THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT 9 Return Policy Except as otherwise provided TI does not offer any refunds returns or exchanges Furthermore no return of EVM s will be accepted if the package has been opened and no return of the EVM s will be accepted if they are damaged or otherwise not in a resalable condition If User feels it has...

Page 11: ...s are subject to change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reproduction and display of these resources is prohibited No license is granted to any other TI intellectual property right or to any third party intellectual property right TI disclaims responsibility for and you wi...

Reviews: