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參數(shù)資料
| 型號(hào)： | XRT75L06IB |
| 廠商： | EXAR CORP |
| 元件分類： | 數(shù)字傳輸電路 |
| 英文描述： | SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR |
| 中文描述： | DATACOM, PCM TRANSCEIVER, PBGA217 |
| 封裝： | 23 X 23 MM, BGA-217 |
| 文件頁(yè)數(shù)： | 22/63頁(yè) |
| 文件大?。?/td> | 360K |
| 代理商： | XRT75L06IB |
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XRT75L06
REV. 1.0.3
SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
19
2.5
2.5.1
A Digital Loss of SIgnal (DLOS) condition occurs when a string of 175 ± 75 consecutive zeros occur on the line.
When the DLOS condition occurs, the DLOS_n bit is set to “1” in the status control register. DLOS condition is
cleared when the detected average pulse density is greater than 33% for 175 ± 75 pulses. Analog Loss of
Signal (ALOS) condition occurs when the amplitude of the incoming line signal is below the threshold as shown
in the Table 1.The status of the ALOS condition is reflected in the ALOS_n status control register. RLOS is the
logical OR of the DLOS and ALOS states. When the RLOS condition occurs the RLOS_n output pin is toggled
“High” and the RLOS_n bit is set to “1” in the status control register.
LOS (Loss of Signal) Detector
DS3/STS-1 LOS Condition
2.5.2
For debugging purposes it is useful to disable the ALOS and/or DLOS detection. Writing a “1” to both
ALOSDIS_n and DLOSDIS_n bits disables the LOS detection on a per channel basis.
Disabling ALOS/DLOS Detection
T
ABLE
1: T
HE
ALOS (A
NALOG
LOS) D
ECLARATION
AND
C
LEARANCE
T
HRESHOLDS
FOR
A
GIVEN
SETTING
OF
LOSTHR
AND
REQEN (DS3
AND
STS-1 A
PPLICATIONS
)
A
PPLICATION
REQEN S
ETTING
LOSTHR S
ETTING
S
IGNAL
L
EVEL
TO
D
ECLARE
ALOS
D
EFECT
S
IGNAL
L
EVEL
TO
C
LEAR
ALOS
D
EFECT
DS3
0
0
< 75mVpk
> 130mVpk
1
0
< 45mVpk
> 60mVpk
0
1
< 120mVpk
> 45mVpk
1
1
< 55mVpk
> 180mVpk
STS-1
0
0
< 120mVpk
> 170mVpk
1
0
< 50mVpk
> 75mVpk
0
1
< 125mVpk
> 205mVpk
1
1
< 55mVpk
> 90mVpk
相關(guān)PDF資料 |
PDF描述 |
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| XRT75R03D | THREE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCRONIZER |
| XRT75R03DIV | THREE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCRONIZER |
| XRT75R03 | THREE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR |
| XRT75R03IV | THREE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR |
| XRT75R06D | SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRT75L06IB-F | 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 6-Ch DS3, E3, STS-1 RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| XRT75R03 | 制造商:EXAR 制造商全稱:EXAR 功能描述:THREE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR |
| XRT75R03D | 制造商:EXAR 制造商全稱:EXAR 功能描述:THREE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCRONIZER |
| XRT75R03D_06 | 制造商:EXAR 制造商全稱:EXAR 功能描述:EXAR DATA SHEET FORMAT TEMPLATES |
| XRT75R03DES | 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 3CH T3/E3/STS1LIU+D 3.3V W/REDUNDANCY RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
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