參數(shù)資料
型號： 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
文件頁數(shù)： 130/134頁
文件大?。?/td> 659K
代理商： XRT75L03D
XRT75L03D
REV. 1.0.0
á
THREE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
125
CROSS-CHECKING OUR DATA
Each SUPER PATTERN consists of (621 + 621 + 622) = 1864 clock pulses.
The total amount of time, which is required for the "DS3 to OC-N Mapper" IC to transmit this SUPER
PATTERN is (720 + 720 + 720) = 2160 "STS-1" clock periods.
This amount to a period of (2160/51.84MHz) = 41,667ns.
In a period of 41, 667ns, the XRT75L03D (when configured to operate in the DS3 Mode), will output a total
(41,667ns x 44,736,000) = 1864 uniformly spaced DS3 clock pulses.
Hence, the number of clock pulses match.
APPLYING THE SUPER PATTERN TO THE XRT75L03D
Whenever the XRT75L03D is configured to operate in a "SONET De-Sync" application, the device will accept a
continuous string of the above-defined SUPER PATTERN, via the TCLK input pin (along with the
corresponding data). The channel within the XRT75L03D (which will be configured to operate in the "DS3"
Mode) will output a DS3 line signal (to the DS3 facility) that complies with the "Category I Intrinsic Jitter
Requirements - per Telcordia GR-253-CORE (for DS3 applications). This scheme is illustrated below in Figure
64.
According to this figure, the Jitter Attenuator will receive a very jitter DS3 or E3 signal (e.g., data and clock
signals) from the Mapper device via the "Transmit System-side" input pins of the LIU IC.
F
IGURE
63. I
LLUSTRATION
OF
THE
SUPER PATTERN
WHICH
IS
OUTPUT
VIA
THE
"OC-N
TO
DS3" M
APPER
IC
F
IGURE
64. S
IMPLE
I
LLUSTRATION
OF
THE
XRT75L03D
BEING
USED
IN
A
SONET D
E
-S
YNCHRONIZER
" A
PPLICA
-
TION
PATTERN A
PATTERN A
PATTERN B
IC
DS3 to STS-N
Mapper/
Demapper
XRT75L03D
STS-N Signal
TPDATA_n input pin
TCLK_n input
De-Mapped (Gapped)
DS3 Data and Clock
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:時鐘合成器/抖動清除器 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: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
XRT75L03DIV-F 功能描述:外圍驅(qū)動器與原件 - 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: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
XRT75L03DIVTR 功能描述:時鐘合成器/抖動清除器 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 安裝風格:SMD/SMT 封裝 / 箱體:BGA-59
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