參數(shù)資料
型號(hào): ADF4360-7BCPZ
廠商: Analog Devices Inc
文件頁(yè)數(shù): 10/28頁(yè)
文件大?。?/td> 0K
描述: IC SYNTHESIZER/VCO 24-LFCSP
標(biāo)準(zhǔn)包裝: 1
類型: 扇出配送,整數(shù)-N,合成器(RF)
PLL:
輸入: CMOS,TTL
輸出: 時(shí)鐘
電路數(shù): 1
比率 - 輸入:輸出: 1:2
差分 - 輸入:輸出: 無(wú)/無(wú)
頻率 - 最大: 1.8GHz
除法器/乘法器: 是/無(wú)
電源電壓: 3 V ~ 3.6 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 24-VFQFN 裸露焊盤,CSP
供應(yīng)商設(shè)備封裝: 24-LFCSP-VQ(4x4)
包裝: 托盤
產(chǎn)品目錄頁(yè)面: 551 (CN2011-ZH PDF)
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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