參數(shù)資料
型號： ZL50015GAC
廠商： ZARLINK SEMICONDUCTOR INC
元件分類： 路由/交換
英文描述： Enhanced 1 K Digital Switch with Stratum 4E DPLL
中文描述： TELECOM, DIGITAL TIME SWITCH, PBGA256
封裝： 17 X 17 MM, 1.61 MM HEIGHT, PLASTIC, MS-034, BGA-256
文件頁數(shù)： 39/122頁
文件大?。?/td> 926K
代理商： ZL50015GAC
ZL50015
Data Sheet
39
Zarlink Semiconductor Inc.
12.1.3.1 Automatic Reference Switching Without Preferences
When the DPLL is programmed to operate in Automatic mode without Preference (RCCR Register, PMS2-0 bits =
000), all references, REF0-3, will have equal importance. A circulating
Round Robin
selection sequence
determines the reference to be used as shown in Figure 21. The state machine basically searches for valid
reference in a circular order of REF0 -> REF1 -> REF2 -> REF3 -> REF0, etc.
Figure 21 - No Preferred Reference (Round Robin) with Ref 0-3 available
Free run
Holdover 0
Holdover 1
Ref 0
Ref 1
Ref 3
Ref 2
Holdover 2
Holdover 3
All Ref failed
Ref 0 failed
All Ref failed
All Ref failed
All Ref failed
R
R
Ref 2 valid
R
Ref 2 failed
R
Re 0vadandRf3faed
Ref 1 valid and Ref 0 faled
Ref 0 and 1 failed
and (Ref 2 or Ref 3 valid)
Ref 3 vaid and Ref 2 faled
Start
R
a
v
Ref 2 and 3 failed
and (Ref 0 or Ref 1 valid)
R
a
v
相關(guān)PDF資料
PDF描述
ZL50015QCC Enhanced 1 K Digital Switch with Stratum 4E DPLL
ZL50015QCC1 Enhanced 1 K Digital Switch with Stratum 4E DPLL
ZL50018 2 K Digital Switch with Enhanced Stratum 3 DPLL
ZL50018GAC 2 K Digital Switch with Enhanced Stratum 3 DPLL
ZL50018QCC 2 K Digital Switch with Enhanced Stratum 3 DPLL
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ZL50015GAG2 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 1K X 1K 1.8V/3.3V 256BGA - Trays 制造商:Zarlink Semiconductor Inc 功能描述:SWIT FABRIC 1K X 1K 1.8V/3.3V 256BGA - Trays
ZL50015QCC 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 1K X 1K 1.8V/3.3V 256LQFP - Trays
ZL50015QCC1 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Enhanced 1 K Digital Switch with Stratum 4E DPLL
ZL50015QCG1 制造商:Microsemi Corporation 功能描述: 制造商:Microsemi Corporation 功能描述:PB FREE 1K+RATE CONVERSION AND S4E DPLL 制造商:Microsemi Corporation 功能描述:PB FREE 1K+RATE CONVERSION AND S4E DPLL - Trays 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC TDM SWITCH 1K-CH ENH 256LQFP 制造商:Microsemi Corporation 功能描述:IC TDM SWITCH 1K-CH ENH 256LQFP
ZL50016 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Enhanced 1 K Digital Switch
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