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參數(shù)資料
| 型號： | XRT75R12IB |
| 廠商： | EXAR CORP |
| 元件分類： | 數(shù)字傳輸電路 |
| 英文描述： | TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR |
| 中文描述： | DATACOM, PCM TRANSCEIVER, PBGA420 |
| 封裝： | 35 X 35 MM, TBGA-420 |
| 文件頁數(shù)： | 75/89頁 |
| 文件大?。?/td> | 457K |
| 代理商： | XRT75R12IB |
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PRELIMINARY
XRT75R12
REV. P1.0.2
TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
72
3
FL Alarm Declared
R/O
FL (FIFO Limit) Alarm Declared:
This READ-ONLY bit-field indicates whether or not the Jitter Attenuator
block (within Channel_n) is currently declaring the FIFO Limit Alarm.
The Jitter Attenuator block will declare the FIFO Limit Alarm anytime
the Jitter Attenuator FIFO comes within two bit-periods of either over-
flowing or under-running.
Conversely, the Jitter Attenuator block will clear the FIFO Limit Alarm
anytime the Jitter Attenuator FIFO is NO longer within two bit-periods
of either overflowing or under-running.
Typically, this Alarm will only be declared whenever there is a very seri-
ous problem with timing or jitter in the system.
0 - Indicates that the Jitter Attenuator block (within Channel_n) is NOT
currently declaring the FIFO Limit Alarm condition.
1 - Indicates that the Jitter Attenuator block (within Channel_n) is cur-
rently declaring the FIFO Limit Alarm condition.
N
OTE
:
This bit-field is only active if the Jitter Attenuator (within
Channel_n) has been enabled.
2
Receive LOL Con-
dition Declared
R/O
Receive LOL (Loss of Lock) Condition Declared:
This READ-ONLY bit-field indicates whether or not the Receive Sec-
tion (within Channel_n) is currently declaring the LOL (Loss of Lock)
condition.
The Receive Section (of Channel_n) will declare the LOL Condition, if
the frequency of the Recovered Clock signal differs from that of the ref-
erence clock programmed for that channel (from the appropriate oscil-
lator or the SFM clock synthesizer if in that mode) by 0.5% (or
5000ppm) or more .
0 - Indicates that the Receive Section of Channel_n is NOT currently
declaring the LOL Condition.
1 - Indicates that the Receive Section of Channel_n is currently declar-
ing the LOL Condition and the recovered clock differs by more than
0.5%..
B
IT
N
UMBER
N
AME
T
YPE
D
ESCRIPTION
相關PDF資料 |
PDF描述 |
|---|---|
| XRT75VL00 | E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR |
| XRT75VL00IV | E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR |
| XRT79L71 | 1 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC |
| XRT79L71IB | 1 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC |
| XRT79L72 | 2 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| XRT75R12IB-F | 功能描述:外圍驅(qū)動器與原件 - PCI 12 Channel 3.3V-5V temp -45 to 85C RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| XRT75R12IB-L | 功能描述:LIN 收發(fā)器 Attenuator RoHS:否 制造商:NXP Semiconductors 工作電源電壓: 電源電流: 最大工作溫度: 封裝 / 箱體:SO-8 |
| XRT75VL00 | 制造商:EXAR 制造商全稱:EXAR 功能描述:E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR |
| XRT75VL00_08 | 制造商:EXAR 制造商全稱:EXAR 功能描述:E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR |
| XRT75VL00D | 制造商:EXAR 制造商全稱:EXAR 功能描述:E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER |
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