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ADF4360-0BCPZ View Datasheet(PDF) - Analog Devices

Part NameDescriptionManufacturer
ADF4360-0BCPZ Integrated Synthesizer and VCO ADI
Analog Devices ADI
ADF4360-0BCPZ Datasheet PDF : 24 Pages
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Data Sheet
Hardware Power-Up/Power-Down
If the ADF4360-0 is powered down via the hardware (using the
CE pin) and powered up again without any change to the N
counter register during power-down, it locks at the correct
frequency because the part is already in the correct frequency
band. The lock time depends on the value of capacitance on the
CN pin, which is <5 ms for 10 μF capacitance. The smaller
capacitance of 440 nF on this pin enables lock times of <600 μs.
The N counter value cannot be changed while it is in power-
down because the part may not lock to the correct frequency on
power-up. If it is updated, the correct programming sequence
for it after power-up is to the R counter latch, followed by the
control latch, and finally the N counter latch, with the required
interval between the control latch and N counter latch, as
described in the Initial Power-Up section.
ADF4360-0
Software Power-Up/Power-Down
If the ADF4360-0 is powered down via the software (using the
control latch) and powered up again without any change to the
N counter latch during power-down, it locks at the correct
frequency because it is already in the correct frequency band.
The lock time depends on the value of capacitance on the CN
pin, which is <5 ms for 10 μF capacitance. The smaller
capacitance of 440 nF on this pin enables lock times of <600 μs.
The N counter value cannot be changed while it is in power-
down because the part may not lock to the correct frequency on
power-up. If it is updated, the correct programming sequence
for it after power-up is to the R counter latch, followed by the
control latch, and finally the N counter latch, with the required
interval between the control latch and N counter latch, as
described in the Initial Power-Up section.
Rev. B | Page 17 of 24
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