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參數(shù)資料
| 型號： | ZL30109QDG1 |
| 廠商： | ZARLINK SEMICONDUCTOR INC |
| 元件分類： | 通信及網(wǎng)絡(luò) |
| 英文描述： | DS1/E1 System Synchronizer with |
| 中文描述： | SPECIALTY TELECOM CIRCUIT, PQFP64 |
| 封裝： | 10 X 10 MM, 1 MM HEIGHT, LEAD FREE, MS-026ACD, TQFP-64 |
| 文件頁數(shù)： | 15/37頁 |
| 文件大?。?/td> | 751K |
| 代理商： | ZL30109QDG1 |
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ZL30109
Data Sheet
15
Zarlink Semiconductor Inc.
Figure 8 - Timing Diagram of Hitless Mode Switching
Examples:
HMS=1
: When 10 Normal to Holdover to Normal mode transitions occur and in each case the Holdover mode was
entered for 2 seconds, then the accumulated phase change (MTIE) could be as large as 3.13
μ
s.
-
Phase
holdover_drift
= 0.15 ppm x 2 s = 300 ns
Phase
mode_change
= 0 ns + 13 ns = 13 ns
Phase
10 changes
= 10 x (300 ns + 13 ns) = 3.13
μ
s
where:
-
-
-
0.15 ppm is the accuracy of the Holdover mode
-
0 ns is the maximum phase discontinuity in the transition from the Normal mode to the Holdover mode
-
13 ns is the maximum phase discontinuity in the transition from the Holdover mode to the Normal mode
when a new TIE corrector value is calculated.
REF
Phase drift in Holdover mode
HMS = 0
Normal mode
Return to Normal mode
REF
Output
Clock
REF
Output
Clock
REF
Output
Clock
Phase drift in Holdover mode
Normal mode
Return to Normal mode
Output
Clock
REF
Output
Clock
REF
Output
Clock
HMS = 1
TIE_CLR=0
REF
Output
Clock
TIE_CLR=0
REF
Output
Clock
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| ZL30110 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Telecom Rate Conversion DPLL |
| ZL30110LDE | 制造商:Microsemi Corporation 功能描述: 制造商:Microsemi Corporation 功能描述:PLL FREQ SYNTHESIZER TRIPLE 32QFN - Rail/Tube |
| ZL30110LDE1 | 制造商:Microsemi Corporation 功能描述: |
| ZL30110LDF1 | 制造商:Microsemi Corporation 功能描述:PB FREE TELECOM RATE CONVERSION DPLL - Tape and Reel 制造商:Zarlink Semiconductor Inc 功能描述:PB FREE TELECOM RATE CONVERSION DPLL - Tape and Reel |
| ZL30110LDG1 | 制造商:Microsemi Corporation 功能描述:PB FREE TELECOM RATE CONVERSION DPLL - Trays 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC DPLL RATE CONVERSION 32QFN 制造商:Microsemi Corporation 功能描述:IC DPLL RATE CONVERSION 32QFN |
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