LMK01000EVAL/NOPB National Semiconductor, LMK01000EVAL/NOPB Datasheet
LMK01000EVAL/NOPB
Specifications of LMK01000EVAL/NOPB
Related parts for LMK01000EVAL/NOPB
LMK01000EVAL/NOPB Summary of contents
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... LMK01000 Precision Clock Conditioner Evaluation Board Operating Instructions 2-20-2008 National Semiconductor Corporation Interface Division 10333 North Meridian Street Suite 400 Indianapolis, IN, 46290 1 ...
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T C ABLE OF ONTENTS G D ................................................................................................................................ 3 ENERAL ESCRIPTION B O ........................................................................................................................................ 3 ASIC PERATION B I ................................................................................................................................... 6 OARD NFORMATION CLKin Inputs ............................................................................................................ 6 CLKout Outputs........................................................................................................ 7 SYNC*...................................................................................................................... 8 GOE*........................................................................................................................ OISE LOOR EASUREMENTS ...
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General Description The LMK01000 Evaluation Board package simplifies evaluation of the LMK01000 Precision Clock Conditioner. Contents: • Evaluation board • LPT to 10 pin uWire cable • CodeLoader software The CodeLoader software will run on a Windows 2000 or Windows ...
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Connect… • PC directly to the evaluation board with the LPT to 10 pin uWire cable, plugging the cable into an LPT port on the computer. This setup is shown below. The cable can be removed after programming to ...
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Basic Operation (continued) 7) Select (ENABLE) output to measure, any of CLKout (0-7) or EN_CLK from either Clock Outputs or Bits/Pins tabs. For default mode, all outputs are disabled. 8) Program the LMK01000 evaluation board by clicking “Keyboard Controls” pressing ...
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Board Information CLKin Inputs CLKin0 is one of two inputs that can be used to drive the LMK01000. Although this input is rated to higher frequencies, the balun on the board is only rated to 400 MHz. Ensure CLKin_SELECT is ...
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CLKout Outputs CLKout0 to CLKout2 are LVDS outputs. For CLKout2, there is a balun attached can be attached to single- ended test equipment. Although the output is rated to higher frequencies, the balun is only rated to 400 ...
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SYNC* This input connects to the SYNC* pin that can be used to synchronize the outputs in the event that they are dividing the input signal (divided mode). For bypass mode, this is not necessary. For the LMK01000 to run, ...
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Recommended Equipment Power Supply The Power Supply should be a low noise power supply. An Agilent 6623A Triple power supply with external LC filters E3610A with external LC filters was used in creating these evaluation board instructions. ...
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Noise Floor Measurements Reason and Methodology When measuring output noise, consideration should be taken to note the inherent noise of the input source in order to accurately reflect the performance of the LMK01000. The measured output noise consists of the ...
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Charts -135 -140 -145 -150 -155 -160 1.E+04 245.76 MHz Input – Smoothed Measurements -135 -140 -145 -150 -155 -160 1.E+04 245.76 MHz Input – Corrected Measurements (SigGen Input Removed) -140 This calculation is s ensitive, especiall y -145 visible, ...
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Delay Measurements These measurements illustrate how skew errors due to different length traces, may be tuned out. The delay may be adjusted in steps of 150 ps. 12 Delays 150, 300, 450, 600, 750 ps CLKout0_DLY = 0 ps CLKout1_DLY ...
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CodeLoader Settings Default Mode The default mode for all programming registers can be restored by clicking Mode default reference oscillator used for these instructions is 245.76 MHz and the restored mode expects a 245.76 MHz OSCin signal. For the loaded ...
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Port Setup and Debugging Communication Issues Debugging Communication Issues 1. Ensure that the correct mode of USB or LPT is selected. 2. Ensure that the port setup is correct 3. Ensure that the cable is properly hooked to the board ...
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Bits/Pins Tab The Bits/Pins tab shows some of the internal registers, which are not accessible from any of the other visual tabs like “Clock Outputs”. Right-click on any of the bits to view a description. Program Bits POWERDOWN Powers the ...
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Clock Outputs Tab The Clock Outputs tab allows the user to visualize the clock distribution portions of the device. From this tab the device’s dividers, delays, clock output muxes, and output drivers can be programmed. an output to observe it. ...
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Appendix A: Schematic VccPlane Vcc Vcc R1 SMA 0 ohm 0 Vcc_OSC Open C6 Open VccOSC Open C5 Open GND C12 1 uF C15 0.1 ...
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CLKout0 CLKout1 Vcc R39 R41 R42 R46 Open Open Open Open C30 C32 CLKout0 CLKout0 CLKout1 SMA 0.1 uF 0.1 uF R43 Open C31 C33 CLKout0* CLKout0* CLKout1* SMA R40 R45 R44 R47 0.1 uF 0.1 uF Open Open Open ...
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Appendix B: Layer Stack up Information Top Layer 1oz thick RO4003 (Er = 3.38) CONTROLLED THICKNESS of 16 mils thick GND plane FR4 (Er = ~4.6) CONTROLLED THICKNESS: 2.5mils Vcc Plane FR4 Make sure total board thickness is 62 mils ...
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... ADT2-1T 15 HEADER_2X5(POLARIZED) FCI Electronics 16 SMA Johnson Components 17 LMK010X0 PCB National Semiconductor 18 0.375" Stand-Offs SPC Technology 19 Clock Conditioner National Semiconductor 20 3.3 V zener Manufacturer Part Number Qty n/a n/a 6 n/a n/a 60 n/a n/a 5 Kemet C0603C101J5GAC 3 Kemet C0603C104J3RAC 10 Kemet C0402C104J4RAC 16 C30, C31, C32, C33, C34, C35, C36, C37, C38, C39, C40, C41, C42, C43, C44, C45 ...