參數(shù)資料
型號(hào)： MT9045
廠商： Zarlink Semiconductor Inc.
英文描述： T1/E1/OC3 System Synchronizer
中文描述： T1/E1/OC3系統(tǒng)同步
文件頁(yè)數(shù)： 15/34頁(yè)
文件大?。?/td> 495K
代理商： MT9045
MT9045
Data Sheet
15
Zarlink Semiconductor Inc.
Figure 7 - Control State Diagram
Description
State
Input Controls
Freerun
Normal
(PRI)
Normal
(SEC)
Holdover
(PRI)
Holdover
(SEC)
MS2
MS1
RSEL
PCCi
S0
S1
S2
S1H
S2H
0
0
0
0
S1
-
S1 MTIE
S1
S1 MTIE
0
0
0
1
S1
-
S1 MTIE
S1 MTIE
S1 MTIE
0
0
1
X
S2
S2 MTIE
-
S2 MTIE
S2 MTIE
0
1
0
X
/
S1H
/
-
/
0
1
1
X
/
S2H
S2H
/
-
1
0
X
X
-
S0
S0
S0
S0
Legend:
- No Change
/ Not Valid
MTIE State change occurs with TIE Corrector Circuit
Refer to Control State Diagram for state changes to and from Auto-Holdover State
Table 4 - Control State Table
Phase Re-Alignment
Phase Continuity Maintained (without TIE Corrector Circuit)
Phase Continuity Maintained (with TIE Corrector Circuit)
NOTES:
(XXX)
{A}
MS2 MS1 RSEL
Invalid Reference Signal
Movement to Normal State from any
state requires a valid input signal
{A}
{A}
S0
Freerun
(10X)
S2H
Holdover
Secondary
(011)
S1H
Holdover
Primary
(010)
S2
Normal
Secondary
(001)
S1
Normal
Primary
(000)
(PCCi=0)
(PCCi=1)
S1A
Auto-Holdover
Primary
(000)
S2A
Auto-Holdover
Secondary
(001)
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