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參數(shù)資料
| 型號(hào)： | MT9044 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | T1/E1/OC3 System Synchronizer(T1/E1/OC3 系統(tǒng)同步裝置（由一個(gè)數(shù)字鎖相環(huán)組成）) |
| 中文描述： | T1/E1/OC3系統(tǒng)同步器（T1/E1/OC3系統(tǒng)同步裝置（由一個(gè)數(shù)字鎖相環(huán)組成）） |
| 文件頁(yè)數(shù)： | 19/34頁(yè) |
| 文件大小： | 150K |
| 代理商： | MT9044 |
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MT9044
19
Dual E1 Reference Sources with MT9044 in
Manual Control
For
control, the application circuit shown in Figure 16
using Manual Control may be used.
systems
requiring
complex
state
machine
In this circuit, the MT9044 is operating Manually and
is using a controller for all mode changes. The
controller sets the MT9044 modes (Normal, Holdover
or Freerun) by controlling the MT9044 mode/control
select pins (MS2 and MS1). The input (Primary or
Secondary) is selected with the reference select pin
(RSEL). TIE correction from Primary Holdover Mode
to Primary Normal Mode is enabled and disabled
with the guard time input pin (GTi). The input to
output phase alignment is re-aligned with the TIE
circuit reset pin (TCLR), and a complete device reset
is done with the RST pin.
The controller uses two stimulus inputs (LOS)
directly from the MT9075 E1 interfaces, as well as an
external stimulus input. The external input may come
from a device that monitors the status registers of
the E1 interfaces, and outputs a logic one in the
event of an unacceptable status condition.
For complete Manual Control state machine details,
refer to Table 4 for the State Table, and Figure 7 for
the State Diagram.
Figure 16 - Dual E1 Reference Sources with MT9044 in 8kHz Manual Control
CONTROLLER
To
TX Line
XFMR
MT8985
STo0
STi0
STo1
STi1
F0i
C4i
MT9044
F0o
C4o
C1.5o
FS1
FS2
GTi
PRI
SEC
LOS1
LOS2
OSCi
MS1
MS2
RSEL
To
RX Line
XFMR
To Line 1
To
TX Line
XFMR
To
RX Line
XFMR
To Line 2
RST
TRST
MT9075
DSTo
DSTi
F0i
C4i
RxFP
TTIP
TRING
RTIP
RRING
LOS
External Stimulus
MT9075
DSTo
DSTi
F0i
C4i
RxFP
TTIP
TRING
RTIP
RRING
LOS
Out
20MHz
±
32ppm
CLOCK
+ 5V
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| MT9044AL | 制造商:Microsemi Corporation 功能描述:FRAMER E1/OC3/T1 5V 44MQFP - Trays 制造商:Zarlink Semiconductor Inc 功能描述:FRAMER E1/OC3/T1 5V 44MQFP - Trays |
| MT9044AL1 | 制造商:Microsemi Corporation 功能描述:FRAMER E1/OC3/T1 5V 44MQFP - Trays |
| MT9044AP | 制造商:Microsemi Corporation 功能描述: |
| MT9044AP1 | 制造商:Microsemi Corporation 功能描述:FRAMER E1/OC3/T1 5V 44PLCC - Rail/Tube 制造商:Microsemi Corporation 功能描述:T1/E1/OC3 SYSTEM SYNCHRONIZER 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC SYNCHRONIZER T1/E1 44PLCC 制造商:Microsemi Corporation 功能描述:IC SYNCHRONIZER T1/E1 44PLCC |
| MT9044APR1 | 制造商:Microsemi Corporation 功能描述:FRAMER E1/OC3/T1 5V 44PLCC - Tape and Reel 制造商:Zarlink Semiconductor Inc 功能描述:FRAMER E1/OC3/T1 5V 44PLCC - Tape and Reel |
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