参数资料
型号: EV-ADF4360-6EB1Z
厂商: Analog Devices Inc
文件页数: 9/24页
文件大小: 0K
描述: BOARD EVAL FOR ADS4360-6EBIZ
标准包装: 1
系列: *
Data Sheet
ADF4360-6
Rev. B | Page 17 of 24
Hardware Power-Up/Power-Down
If the part 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, the part locks at the correct fre-
quency 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 F capacitance. The smaller ca-
pacitance of 440 nF on this pin enables lock times of <600 s.
The N counter value cannot be changed while the part is in
power-down because the part may not lock to the correct fre-
quency on power-up. If it is updated, the correct programming
sequence for the part 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.
Software Power-Up/Power-Down
If the part is powered down via the software (using the control
latch) and powered up again without any change to the N coun-
ter latch during power-down, the part locks at the correct fre-
quency 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 F capacitance. The smaller ca-
pacitance of 440 nF on this pin enables lock times of <600 s.
The N counter value cannot be changed while the part is in
power-down because the part may not lock to the correct fre-
quency on power-up. If it is updated, the correct programming
sequence for the parts 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.
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