Texas Instruments LMK03806 User Manual

Ultra-low jitter clock generator with 14 outputs evaluation board

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LMK03806 Evaluation Board

User's Guide

November 2013

SNAU075A

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Summary of Contents for Texas Instruments LMK03806

Page 1 LMK03806 Evaluation Board User's Guide November 2013 SNAU075A...
Page 2 LMK03806 Ultra-low Jitter Clock Generator with 14 Outputs Evaluation Board Operating Instructions SNAU075A LMK3806 Evaluation Board November 2013 Copyright © 2013, Texas Instruments Incorporated...
Page 3 SCHEMATICS ......................27 PCB LAYERS STACKUP ..................35 PCB LAYOUT ......................36 APPENDIX A: EVM SOFTWARE AND COMMUNICATION: INTERFACING UWIRE ... 41 November 2013 LMK3806 Evaluation Board SNAU075A Copyright © 2013, Texas Instruments Incorporated...
Page 4 Figure 18 - LMK03806 Device Schematic ........................28 Figure 19 - Outputs, (OSCout, CLKout0/1/2/3) Schematics ..................29 Figure 20 - LMK03806 Clock Outputs 4 through 7 Schematics ................. 30 Figure 21 - LMK03806 Clock Outputs 8 through 11 Schematics ................31 ...
Page 5 LMK03806B Texas Instruments CodeLoader software can be used to program the internal registers of the LMK03806B device through the USB2ANY-uWire interface. The CodeLoader software will run on a Windows 7 or Windows XP PC and can be downloaded from http://www.ti.com/tool/codeloader...
Page 6 5.0 V Program with CodeLoader (LDO) Be sure to press ‘Ctrl - L’ For interfacing the board please see Appendix A Laptop or PC Figure 1: Quick Start Diagram SNAU075A LMK3806 Evaluation Board November 2013 Copyright © 2013, Texas Instruments Incorporated...
Page 7 CodeLoader saves the state of the selected LMK03806B device when exiting the software. To ensure a common starting point, the following modes listed in Table 2: Default CodeLoader Modes for LMK03806 may be restored by clicking “Mode” and selecting the appropriate device configuration, as shown in Figure 2 in the case of the LMK03806B device.
Page 8 For this example, the LMK03806B is chosen. Selecting the device does cause the device to be programmed. SNAU075A LMK3806 Evaluation Board November 2013 Copyright © 2013, Texas Instruments Incorporated...
Page 9 5. Program/Load Device Assuming the Port Setup settings are correct, press the “Ctrl+L” shortcut or click “Keyboard Controls”  “Load Device” from the menu to program the device to the current state of the newly loaded LMK03806 file. Figure 3: Loading the Device Once the device has been initially loaded, CodeLoader will automatically program changed registers so it is not necessary to re-load the device upon subsequent changes in the device configuration.
Page 10 A balun may also be used. Ensure CLKoutX and CLKoutX* states are complementary, i.e.: Norm/Inv or Inv/Norm. 5. The phase noise may be measured with a spectrum analyzer or signal source analyzer. SNAU075A LMK3806 Evaluation Board November 2013 Copyright © 2013, Texas Instruments Incorporated...
Page 11 Margin Loop Bandwidth Note: PLL Loop Bandwidth is a function of K, Kvco, N as well as loop components. Changing K and N will change the loop bandwidth. November 2013 LMK3806 Evaluation Board SNAU075A Copyright © 2013, Texas Instruments Incorporated...
Page 12 RF test equipment. All LVPECL clock outputs are source-terminated using 240-ohm resistors. If an output pair is programmed to LVCMOS, each output can be independently configured (normal, inverted, or off/tri-state). SNAU075A LMK3806 Evaluation Board November 2013 Copyright © 2013, Texas Instruments Incorporated...
Page 13 On-board LDO regulators and 0  resistor options provide flexibility to supply and route power to various devices. See schematics for more details. November 2013 LMK3806 Evaluation Board SNAU075A Copyright © 2013, Texas Instruments Incorporated...
Page 14 A SYNC event can also be programmed by toggling the SYNC_POL_INV bit in the Bits/Pins tab in CodeLoader. Refer to the LMK03806 Datasheet section “Clock Output Synchronization” for more information. SNAU075A LMK3806 Evaluation Board November 2013 Copyright © 2013, Texas Instruments Incorporated...
Page 15 50-ohm cables to minimize external sources of skew or other errors/distortion that may be introduced if using oscilloscope probes. November 2013 LMK3806 Evaluation Board SNAU075A Copyright © 2013, Texas Instruments Incorporated...
Page 16 The Pin Configuration field is hardware dependent and normally does not need to be changed by the user. Figure 7: Port Setup Tab shows the default settings. SNAU075A LMK3806 Evaluation Board November 2013 Copyright © 2013, Texas Instruments Incorporated...
Page 17 Clicking on the cyan-colored PLL block that contains R, PDF and N values will bring the PLL tab into focus where these values may be modified, if needed. November 2013 LMK3806 Evaluation Board SNAU075A Copyright © 2013, Texas Instruments Incorporated...
Page 18 VCO Frequency (MHz) Internal VCO Frequency should be within the allowable range of the LMK03806B device. This value is calculated as: VCO Frequency = PLL PDF * (PLL_N * PLL_P). SNAU075A LMK3806 Evaluation Board November 2013 Copyright © 2013, Texas Instruments Incorporated...
Page 19 Changes made on this tab will be reflected in the Clock Outputs tab. The VCO Frequency should conform to the specified internal VCO frequency range for the LMK03806B. November 2013 LMK3806 Evaluation Board SNAU075A Copyright © 2013, Texas Instruments Incorporated...
Page 20 Table 6: Datasheet to PCB Silkscreen Updates Datasheet Name PCB Silkscreen Identifier Readback (pin 27) Status0 Ftest/LD (pin 33) Status1 GPout0 (pin 62) Status2 GPout1 (pin 63) Status3 SNAU075A LMK3806 Evaluation Board November 2013 Copyright © 2013, Texas Instruments Incorporated...
Page 21 Clock Outputs tab. PLL_C4_LF SYNC Sets these pins on the uWire header to logic high Program Pins (checked) or logic low (unchecked). TRIGGER November 2013 LMK3806 Evaluation Board SNAU075A Copyright © 2013, Texas Instruments Incorporated...
Page 22 By clicking in the “bit field” it is possible to manually change the value of registers by typing ‘1’ and ‘0.’ SNAU075A LMK3806 Evaluation Board November 2013 Copyright © 2013, Texas Instruments Incorporated...
Page 23 100 kHz -114.2 1 MHz -136.6 10 MHz -150.6 20 MHz -151.3 RMS Jitter (fs) 12 kHz to 20 MHz RMS Jitter (fs) 100 Hz to 20 MHz November 2013 LMK3806 Evaluation Board SNAU075A Copyright © 2013, Texas Instruments Incorporated...
Page 24 Clock Outputs (CLKout The LMK03806 Family features programmable LVDS, LVPECL, and LVCMOS buffer modes for the CLKoutX and OSCout0 output pairs. The OSCout1 output pair has a LVPECL buffer. Included below are various phase noise measurements for each output format.
Page 25 Figure 13: LMK03806B div8 CLKout LVPECL Phase Noise Figure 14: LMK03806B div8 CLKout LVDS Phase Noise November 2013 LMK3806 Evaluation Board SNAU075A Copyright © 2013, Texas Instruments Incorporated...
Page 27 Designed for: Evaluation Customer Mod. Date: 11/28/2011 Texas Instruments and/or its licensors do not warrant the accuracy or completeness of this Project: LMK038xx Evaluation Board specification or any information contained therein. Texas Instruments and/or its licensors do not Sheet Title:...
Page 28 Designed for: Evaluation Customer Mod. Date: 11/30/2011 Texas Instruments and/or its licensors do not warrant the accuracy or completeness of this Project: LMK038xx Evaluation Board specification or any information contained therein. Texas Instruments and/or its licensors do not Sheet Title:...
Page 29 Designed for: Evaluation Customer Mod. Date: 11/28/2011 Texas Instruments and/or its licensors do not warrant the accuracy or completeness of this Project: LMK038xx Evaluation Board specification or any information contained therein. Texas Instruments and/or its licensors do not Sheet Title:...
Page 30 Designed for: Evaluation Customer Mod. Date: 11/28/2011 Texas Instruments and/or its licensors do not warrant the accuracy or completeness of this Project: LMK038xx Evaluation Board specification or any information contained therein. Texas Instruments and/or its licensors do not Sheet Title:...
Page 31 Designed for: Evaluation Customer Mod. Date: 11/28/2011 Texas Instruments and/or its licensors do not warrant the accuracy or completeness of this Project: LMK038xx Evaluation Board specification or any information contained therein. Texas Instruments and/or its licensors do not Sheet Title:...
Page 32 LED 2.8X3.2MM 565NM Lumex SML-LX2832GC GRN CLR SMD Opto/Compon ents Inc. CONN TERM BLK PCB Weidmuller 1594540000 5.08MM 2POS OR RES, 620 ohm, 5%, 0.1W, R2_LF Vishay-Dale CRCW0603620RJNEA 0603 SNAU075A LMK3806 Evaluation Board November 2013 Copyright © 2013, Texas Instruments Incorporated...
Page 33 Kemet C0603C471K5RACTU +/-10%, X7R, 0603 CAP, CERM, 0.1uF, 25V, C50, C52, C59 Kemet C0603C104K3RACTU +/-10%, X7R, 0603 CAP, CERM, 1uF, 25V, +/- C63, C65 08053D105KAT2A 10%, X5R, 0805 November 2013 LMK3806 Evaluation Board SNAU075A Copyright © 2013, Texas Instruments Incorporated...
Page 34 R67, R68, R69, R70 RES, 1.00k ohm, 1%, 0.1W, R102 Vishay-Dale CRCW06031K00FKEA 0603 FB, 1000 ohm, 600 mA, R82, R83 Murata BLM18HE102SN1D 0603 Y1, Y2 DNP_XTAL, ECS-200- 20-30B-DU SNAU075A LMK3806 Evaluation Board November 2013 Copyright © 2013, Texas Instruments Incorporated...
Page 35 FR4 (Er = 4.8) 19 mil RF Ground plane [LMK03806ENG.G1] FR4 (Er = 4.8) 14.5 mil Power plane #1 [LMK03806ENG.G2] 19 mil Bottom Layer [LMK03806ENG.GBL] Figure 21: PCB Stackup November 2013 LMK3806 Evaluation Board SNAU075A Copyright © 2013, Texas Instruments Incorporated...
Page 41 OPTION 1 Open Codeloader.exe  Click “Select Device”  Click “Port Setup” tab  Click “LPT” (in Communication Mode) OPTION 2 November 2013 LMK3806 Evaluation Board SNAU075A Copyright © 2013, Texas Instruments Incorporated...
Page 42 Open Codeloader.exe  Click “Select Device”  Click “Port Setup” Tab  Click “USB” (in Communication Mode) *Remember to also make modifications in “Pin Configuration” Section according to Table above. SNAU075A LMK3806 Evaluation Board November 2013 Copyright © 2013, Texas Instruments Incorporated...
Page 43 STANDARD TERMS AND CONDITIONS FOR EVALUATION MODULES Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, or documentation (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms and conditions set forth herein. Acceptance of the EVM is expressly subject to the following terms and conditions.
Page 44 FCC Interference Statement for Class B EVM devices NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
Page 45 【無線電波を送信する製品の開発キットをお使いになる際の注意事項】開発キットの中には技術基準適合証明を受けていないものがあります。技術適合証明を受けていないもののご使用に際しては、電波法遵守のため、以下のいずれかの措置を取っていただく必要がありますのでご注意ください。 1. 電波法施行規則第6条第1項第1号に基づく平成18年3月28日総務省告示第173号で定められた電波暗室等の試験設備でご使用いただく。 2. 実験局の免許を取得後ご使用いただく。 3. 技術基準適合証明を取得後ご使用いただく。なお、本製品は、上記の「ご使用にあたっての注意」を譲渡先、移転先に通知しない限り、譲渡、移転できないものとします。上記を遵守頂けない場合は、電波法の罰則が適用される可能性があることをご留意ください。日本テキサス・インスツルメンツ株式会社東京都新宿区西新宿６丁目２４番１号西新宿三井ビル 3.3.3 Notice for EVMs for Power Line Communication: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page 電力線搬送波通信についての開発キットをお使いになる際の注意事項については、次のところをご覧ください。http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page SPACER 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.
Page 46 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 © 2015, Texas Instruments Incorporated...
Page 47 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue.
Page 48 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments LMK03806BEVAL/NOPB...

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