LMK04000BEVAL/NOPB National Semiconductor, LMK04000BEVAL/NOPB Datasheet - Page 22

• 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

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11.0 Serial Data Timing Diagram
Register programming information on the DATAuWire pin is clocked into a shift register on each rising edge of the CLKuWire signal.
On the rising edge of the LEuWire signal, the register is sent from the shift register to the register addressed. A slew rate of at least
30 V/µs is recommended for these signals. After programming is complete the CLKuWire, DATAuWire, and LEuWire signals should
be returned to a low state. If the CLKuWire or DATAuWire lines are toggled while the VCO is in lock, as is sometimes the case
when these lines are shared with other parts, the phase noise may be degraded during this programming.
12.0 Charge Pump Current Specification Definitions
I1 = Charge Pump Sink Current at V
I2 = Charge Pump Sink Current at V
I3 = Charge Pump Sink Current at V
I4 = Charge Pump Source Current at V
I5 = Charge Pump Source Current at V
I6 = Charge Pump Source Current at V
CPout
CPout
CPout
CPout
CPout
CPout
= V
= V
= ΔV
= V
= V
= ΔV
CC
CC
/2
CC
CC
- ΔV
/2
- ΔV
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