參數(shù)資料
型號(hào)： XRT75L03D
廠商： Exar Corporation
英文描述： THREE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
中文描述： Three頻道E3/DS3/STS-1線路接口單元與SONET DESYNCHRONIZER
文件頁(yè)數(shù)： 6/134頁(yè)
文件大?。?/td> 659K
代理商： XRT75L03D
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XRT75L03D
REV. 1.0.0
á
THREE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
III
T
ABLE
26: A
LARM
S
TATUS
R
EGISTER
- C
HANNEL
0 A
DDRESS
L
OCATION
= 0
X
03 ................................................ 70
T
ABLE
27: T
RANSMIT
C
ONTROL
R
EGISTER
- C
HANNEL
0 A
DDRESS
L
OCATION
= 0
X
04 ......................................... 75
T
ABLE
28: R
ECEIVE
C
ONTROL
R
EGISTER
- C
HANNEL
0 A
DDRESS
L
OCATION
= 0
X
05 ........................................... 78
T
ABLE
29: C
HANNEL
C
ONTROL
R
EGISTER
- C
HANNEL
0 A
DDRESS
L
OCATION
= 0
X
06 ......................................... 80
T
ABLE
30: J
ITTER
A
TTENUATOR
C
ONTROL
R
EGISTER
- C
HANNEL
0 A
DDRESS
L
OCATION
= 0
X
07 ......................... 83
8.0 Diagnostic Features: ........................................................................................................................ 85
8.1 PRBS G
ENERATOR
AND
D
ETECTOR
: ................................................................................................................ 85
8.2 LOOPBACKS: ............................................................................................................................................... 85
8.2.1 ANALOG LOOPBACK: ....................................................................................................................... 85
Figure 25. PRBS MODE ................................................................................................................................. 85
Figure 26. Analog Loopback ........................................................................................................................... 86
8.2.2 DIGITAL LOOPBACK: ........................................................................................................................ 87
8.2.3 REMOTE LOOPBACK: ....................................................................................................................... 87
Figure 27. Digital Loopback ............................................................................................................................ 87
Figure 28. Remote Loopback .......................................................................................................................... 87
8.3 TRANSMIT ALL ONES (TAOS): ................................................................................................................... 88
Figure 29. Transmit All Ones (TAOS) ............................................................................................................. 88
9.0 THE SONET/SDH DE-SYNC FUNCTION WITHIN THE XRT75L03D ............................................... 89
9.1 BACKGROUND AND DETAILED INFORMATION - SONET DE-SYNC APPLICATIONS .......................... 89
Figure 30. A Simple Illustration of a DS3 signal being mapped into and transported over the SONET Network
90
9.2 MAPPING/DE-MAPPING JITTER/WANDER ................................................................................................ 91
9.2.1 HOW DS3 DATA IS MAPPED INTO SONET ...................................................................................... 91
Figure 31. A Simple Illustration of the SONET STS-1 Frame ......................................................................... 92
Figure 32. A Simple Illustration of the STS-1 Frame Structure with the TOH and the Envelope Capacity Bytes
Designated .................................................................................................................................... 93
Figure 33. The Byte-Format of the TOH within an STS-1 Frame .................................................................... 94
Figure 34. The Byte-Format of the TOH within an STS-1 Frame .................................................................... 95
Figure 35. Illustration of the Byte Structure of the STS-1 SPE ....................................................................... 96
Figure 36. An Illustration of Telcordia GR-253-CORE's Recommendation on how map DS3 data into an STS-1
SPE ............................................................................................................................................... 97
Figure 37. A Simplified "Bit-Oriented" Version of Telcordia GR-253-CORE's Recommendation on how to map
DS3 data into an STS-1 SPE ........................................................................................................ 97
9.2.2 DS3 Frequency Offsets and the Use of the "Stuff Opportunity" Bits ............................................ 98
Figure 38. A Simple Illustration of a DS3 Data-Stream being Mapped into an STS-1 SPE, via a PTE .......... 99
Figure 39. An Illustration of the STS-1 SPE traffic that will be generated by the "Source" PTE, when mapping in
a DS3 signal that has a bit rate of 44.736Mbps + 1ppm, into an STS-1 signal .......................... 100
9.3 J
ITTER
/W
ANDER
DUE
TO
P
OINTER
A
DJUSTMENTS
.......................................................................................... 102
9.3.1 The Concept of an STS-1 SPE Pointer ........................................................................................... 102
Figure 40. An Illustration of the STS-1 SPE traffic that will be generated by the Source PTE, when mapping a
DS3 signal that has a bit rate of 44.736Mbps - 1ppm, into an STS-1 signal .............................. 102
Figure 41. An Illustration of an STS-1 SPE straddling across two consecutive STS-1 frames ..................... 103
9.3.2 Pointer Adjustments within the SONET Network .......................................................................... 104
Figure 42. The Bit-format of the 16-Bit Word (consisting of the H1 and H2 bytes) with the 10 bits, reflecting the
location of the J1 byte, designated ............................................................................................. 104
Figure 43. The Relationship between the Contents of the "Pointer Bits" (e.g., the 10-bit expression within the H1
and H2 bytes) and the Location of the J1 Byte within the Envelope Capacity of an STS-1 Frame ...
104
9.3.3 Causes of Pointer Adjustments ...................................................................................................... 105
Figure 44. An Illustration of an STS-1 signal being processed via a Slip Buffer ........................................... 106
Figure 45. An Illustration of the Bit Format within the 16-bit word (consisting of the H1 and H2 bytes) with the "I"
bits designated ............................................................................................................................ 107
Figure 46. An Illustration of the Bit-Format within the 16-bit word (consisting of the H1 and H2 bytes) with the
"D" bits designated ...................................................................................................................... 108
9.3.4 Why are we talking about Pointer Adjustments .......................................................................... 109
9.4 C
LOCK
G
APPING
J
ITTER
................................................................................................................................. 109
Figure 47. Illustration of the Typical Applications for the XRT75L03D in a SONET De-Sync Application .... 109
相關(guān)PDF資料
PDF描述
XRT75L04D FOUR CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
XRT75L04DIV FOUR CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
XRT75L04 FOUR CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER
XRT75L04IV FOUR CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER
XRT75L06D 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
XRT75L03DES 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 3 CH T3/E3/STS1 LIU+DESYNCH3.3V 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
XRT75L03DIV 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 3CHNNEL E3/DS3/STS 1 SONET DE-SYNCH 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
XRT75L03DIV-F 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 3-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
XRT75L03DIVTR 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 3CHNNEL E3/DS3/STS 1 SONET DE-SYNCH 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
XRT75L03DIVTR-F 功能描述:接口 - 專用 RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59
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