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National Semiconductor LMK03000C Operating Instructions Manual

Precision clock conditioner with integrated vco
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LMK03000C
Precision Clock Conditioner with Integrated VCO
Evaluation Board Operating Instructions
4-16-2009
National Semiconductor Corporation
Interface
2900 Semiconductor Dr.
MS A2-600
Santa Clara, CA, 95052-8090

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Summary of Contents for National Semiconductor LMK03000C

  • Page 1 LMK03000C Precision Clock Conditioner with Integrated VCO Evaluation Board Operating Instructions 4-16-2009 National Semiconductor Corporation Interface 2900 Semiconductor Dr. MS A2-600 Santa Clara, CA, 95052-8090...

  • Page 2: Table Of Contents

    L M K 0 3 0 0 0 C E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S ABLE OF ONTENTS ..........................

  • Page 3: General Description

    Conditioner with Integrated VCO. The package consists of an evaluation board and CodeLoader software. The CodeLoader software will run on a Windows 2000 or Windows XP PC. The purpose of the CodeLoader software is to program the internal registers of the LMK03000C device through a MICROWIRE interface.

  • Page 4: Read First, Basic Operation

    L M K 0 3 0 0 0 C E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S Read first, Basic Operation Read the document, “Installing CodeLoader 4 &...
  • Page 5 L M K 0 3 0 0 0 C E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S Read first, Basic Operation (Continued) 3.
  • Page 6 L M K 0 3 0 0 0 C E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S Read first, Basic Operation (Continued) 4.
  • Page 7 L M K 0 3 0 0 0 C E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S Read first, Basic Operation (Continued) 7.

  • Page 8: Board Information

    L M K 0 3 0 0 0 C E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S Board Information OSCin By default the board is configured to use the on-board crystal oscillator.

  • Page 9: Features Of The Board

    Toggle the SYNC* pin to synchronize the clock outputs when in divided mode. • For both loop filters, a helper silkscreen is offset from the loop filters to help identify the components according to National Semiconductor’s traditional reference designators associated with loop filters. Evaluation Board Revision v1.0 Errata •...

  • Page 10: Recommended Equipment

    L M K 0 3 0 0 0 C E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S Recommended Equipment Power Supply The Power Supply should be a low noise power supply.

  • Page 11: Phase Noise

    L M K 0 3 0 0 0 C E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S Phase Noise...
  • Page 12 L M K 0 3 0 0 0 C E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S...

  • Page 13: Delays

    L M K 0 3 0 0 0 C E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S Delays These delay measurements illustrate how skew errors due to different length traces may be tuned out.

  • Page 14: Codeloader Settings

    L M K 0 3 0 0 0 C E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S CodeLoader Settings The Port Setup tab tells CodeLoader what signals are assigned to which pins.
  • Page 15 L M K 0 3 0 0 0 C E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S The Bits/Pins tab shows some of the internal registers which are not accessible from any of the other visual tabs like “PLL”...
  • Page 16 L M K 0 3 0 0 0 C E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S The Registers tab shows the raw bits which will be programmed when device is loaded by clicking Keyboard Controls Load Device or Ctrl+L.
  • Page 17 L M K 0 3 0 0 0 C E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S The PLL tab shows a conventional PLL diagram along with the VCO Divider.

  • Page 18: Appendix A: Vco Performance

    L M K 0 3 0 0 0 C E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S Appendix A: VCO Performance The internal VCO performance is measured by using a narrow bandwidth loop filter.
  • Page 19 L M K 0 3 0 0 0 C E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S VCO Phase Noise - Narrow Loop Bandwidth dThis plot shows the noise of the VCO at 1240 MHz using a 1 MHz Phase Detector Frequency.

  • Page 20: Appendix B: Impact Of Reference On Phase Noise

    L M K 0 3 0 0 0 C E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S Appendix B: Impact of Reference on Phase Noise Inside the loop bandwidth of a PLL the phase noise is set by the quality of the reference oscillator used.

  • Page 21: Appendix C: Schematics

    L M K 0 3 0 0 0 C E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S Appendix C: Schematics LMK0300x - Main Board LMK0300x - Outputs...
  • Page 22 L M K 0 3 0 0 0 C E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S R109 TCXO_RF 0 ohm...
  • Page 23 L M K 0 3 0 0 0 C E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S CLKout0 CLKout1 CLKout2...

  • Page 24: Appendix D: Bill Of Materials

    L M K 0 3 0 0 0 C E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S Appendix D: Bill of Materials Part Manufacturer...
  • Page 25 L M K 0 3 0 0 0 C E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S 15 k Vishay CRCW0603153JRT1...

  • Page 26: Appendix E: Build Diagram

    L M K 0 3 0 0 0 C E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S Appendix E: Build Diagram...
  • Page 27 L M K 0 3 0 0 0 C E V A L U A T I O N B O A R D O P E R A T I N G I N S T R U C T I O N S Bottom Build Diagram...
  • Page 28 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.
  • Page 29 Компания «ЭлектроПласт» предлагает заключение долгосрочных отношений при поставках импортных электронных компонентов на взаимовыгодных условиях! Наши преимущества:  Оперативные поставки широкого спектра электронных компонентов отечественного и импортного производства напрямую от производителей и с крупнейших мировых складов;  Поставка более 17-ти миллионов наименований электронных компонентов; ...

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