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参数资料
| 型号： | EV-ADF4360-7EB1Z |
| 厂商： | Analog Devices Inc |
| 文件页数： | 10/28页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR ADF4360-7 |
| 标准包装： | 1 |
| 主要目的： | 计时，频率合成器 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | ADF4360-7 |
| 主要属性： | 带 VCO 的单路整数-N PLL |
| 次要属性： | 900MHz，200kHz PFD |
| 已供物品： | 板，缆线，CD |
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ADF4360-7
Data Sheet
Rev. D | Page 18 of 28
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 <10 ms for 10 F capacitance. The smaller
capacitance 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, since the part may not lock to the correct
frequency on power-up. If it is updated, the correct program-
ming sequence for the part after power-up is 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 <10 ms for 10 F capacitance. The smaller
capacitance 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
frequency on power-up. If it is updated, the correct program-
ming 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.
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