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LMK1C1104: Please help to check whether the circuit design of LMK1C1104 is correct

yuqi chen
Prodigy 10 points
Part Number: LMK1C1104

Hi，

Our circuit used LMK1C1104 devices. Our processor requires three 50MHz CMOS clocks at 1.8V. The design is as follows. Please help to check whether there is any problem with this design. Thank you very much.

  • 0
    TI__Expert 8515 points

    Hello,

    Here is my schematic review:

    LMK1C1104:

    1. CLKIN:
      1. Correct 33 ohm input termination for a LVCMOS input. No changes needed.
    2. 1G:
      1. Tied to VDD to enable outputs. No changes needed.
    3. VDD:
      1. Good power supply filtering circuit. No changes needed.
    4. Outputs:
      1. For LVCMOS outputs, we recommend placing a 33 ohm series resistor on the output pin.
    5. GND:
      1. Tied to GND. No changes needed.

    Regards,

    Kia Rahbar