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Zi9041B
用戶手冊
(20020810).doc
目
錄
1
簡介
...............................................................................................................................................................................1
1.1
特點(diǎn)
.............................................................................................................................................................1
1.2
封裝與工作條件
........................................................................................................................................2
1.3
引腳說明
.....................................................................................................................................................2
2
功能說明
.......................................................................................................................................................................4
2.1
頻率選擇多路器
........................................................................................................................................5
2.2
數(shù)字鎖相環(huán)
DPLL.....................................................................................................................................5
2.2.1
數(shù)控振蕩器
.......................................................................................................................................5
2.2.2
鑒相器
................................................................................................................................................5
2.2.3
限速器
................................................................................................................................................6
2.2.4
環(huán)路濾波器
.......................................................................................................................................6
2.2.5
控制電路
............................................................................................................................................6
2.3
輸出接口電路
............................................................................................................................................6
3
Zi9041B
的主要性能指標(biāo)
..........................................................................................................................................6
3.1
固有抖動
Intrinsic jitter
......................................................................................................................6
3.2
抖動容限
Jitter tolerance
....................................................................................................................6
3.3
抖動傳遞
Jitter Thansfer
....................................................................................................................6
3.4
頻率準(zhǔn)確度
Frequency Accuracy
.....................................................................................................7
3.5
捕獲范圍
Capture Range
...................................................................................................................7
3.6
鎖定范圍
Lock Range
........................................................................................................................7
3.7
相位斜率
Phase Slope
........................................................................................................................8
3.8
相位鎖定時(shí)間
Phase Lock Time
......................................................................................................8
3.9
Zi9041B
滿足的電信網(wǎng)絡(luò)規(guī)范
...............................................................................................................8
4
Zi9041B
的應(yīng)用
...........................................................................................................................................................9
4.1
主工作時(shí)鐘
................................................................................................................................................9
4.1.1
復(fù)位電路
..........................................................................................................................................10
4.1.2
電源的噪聲去藕
.............................................................................................................................10
4.2
Zi9041B
的性能指標(biāo)
...............................................................................................................................11
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