LMK04000BEVAL/NOPB National Semiconductor, LMK04000BEVAL/NOPB Datasheet - Page 35

• Manufacturer Part Number: LMK04000BEVAL/NOPB
• Description: BOARD EVAL PRECISION CLOCK PLL
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LMK04000BEVAL/NOPB

• Main Purpose: Timing, Clock Conditioner
• Embedded: No
• Utilized Ic / Part: LMK04000
• Primary Attributes: 122.88 MHz VCXO
• Secondary Attributes: Integrated PLL & VCO
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LMK04000BEVAL; LMK04000BEVAL

4. Install a 0 Ohm resistor in R83 and remove the 0 Ohm resistor in R85
Changing from VCXO to Crystal Resonator
If the board has been setup to use the VCXO for PLL1, the VCXO may be disabled and the crystal
enabled as described on the following pages:
5. Power to the VCXO is provided by placing a jumper on the Vcc_TP header across the traces
labeled “VccSMA” and “VccAUXPlane”.
L M K 0 4 0 X X
E V A L U A T I O N
jumper
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