参数资料
| 型号： | XRT75L00DIV |
| 厂商： | Exar Corporation |
| 文件页数： | 80/92页 |
| 文件大小： | 0K |
| 描述： | IC LIU E3/DS3/STS-1 SGL 52TQFP |
| 标准包装： | 96 |
| 类型： | 线路接口装置（LIU） |
| 驱动器/接收器数： | 1/1 |
| 规程： | DS3，E3，STS-1，SONET |
| 电源电压： | 3.135 V ~ 3.465 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 52-LQFP |
| 供应商设备封装： | 52-TQFP（10x10） |
| 包装： | 托盘 |
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XRT75L00D
REV. 1.0.2
E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
76
9.7.2
Wander Measurement Test Results
Wander Measurement test results will be provided in the next revision of the LIU Data Sheet.
9.8
Designing with the LIU
In this section, we will discuss the following topics.
How to design with and configure the LIU to permit a system to meet the above-mentioned Intrinsic Jitter and
Wander requirements.
How is the LIU able to meet the above-mentioned requirements?
How does the LIU permits the user to comply with the SONET APS Recovery Time requirements of 50ms
(per Telcordia GR-253-CORE)?
How should one configure the LIU, if one needs to support "Daisy-Chain" Testing at the end Customer’s site?
9.8.1
How to design and configure the LIU to permit a system to meet the above-mentioned
Intrinsic Jitter and Wander requirements
As mentioned earlier, in most application (in which the LIU will be used in a SONET De-Sync Application) the
user will typically interface the LIU to a Mapper device in the manner as presented below in Figure 57.
In this application, the Mapper has the responsibility of receiving a SONET STS-N/OC-N signal and extracting
as many as N DS3 signals from this signal. As a given channel within the Mapper IC extracts out a given DS3
signal (from SONET) it will typically be applying a Clock and Data signal to the "Transmit Input" of the LIU IC.
Figure 57 presents a simple illustration as to how one channel, within the LIU should be connected to the
Mapper IC.
As mentioned above, the Mapper IC will typically output a Clock and Data signal to the LIU. In many cases, the
Mapper IC will output the contents of an entire STS-1 data-stream via the Data Signal to the LIU. However, the
Mapper IC typically only supplies a clock pulse via the Clock Signal to the LIU coincident to whenever a DS3 bit
is being output via the Data Signal. In this case, the Mapper IC would not supply a clock edge coincident to
when a TOH, POH or any non-DS3 data-bit is being output via the Data-Signal.
Figure 57 indicates that the Data Signal from the Mapper device should be connected to the TPDATA_n input
pin of the LIU IC and that the Clock Signal from the Mapper device should be connected to the TCLK_n input
pin of the LIU IC.
In this application, the LIU has the following responsibilities.
FIGURE 57. ILLUSTRATION OF THE LIU BEING CONNECTED TO A MAPPER IC FOR SONET DE-SYNC APPLICATIONS
DS3 to STS-N
Mapper/
Demapper
IC
DS3 to STS-N
Mapper/
Demapper
IC
LIU
STS-N Signal
TPDATA_n input pin
TCLK n input
De-Mapped (Gapped)
DS3 Data and Clock
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相关代理商/技术参数 |
参数描述 |
|---|---|
| XRT75L00DIV-F | 功能描述:外围驱动器与原件 - PCI 1-Ch DS3, E3, SONET RoHS:否 制造商:PLX Technology 工作电源电压: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:FCBGA-1156 封装:Tray |
| XRT75L00DIVTR | 功能描述:时钟合成器/抖动清除器 3.3V 1 CH E3/DS3/STS W/SONET DE-SYNCH RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel |
| XRT75L00DIVTR-F | 功能描述:时钟合成器/抖动清除器 3.3V 1 CH E3/DS3/STS W/SONET DE-SYNCH RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel |
| XRT75L00ES | 功能描述:时钟合成器/抖动清除器 1CH T3/E3/STS1 LIU+JA 3.3V RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel |
| XRT75L00IV | 功能描述:外围驱动器与原件 - PCI 3.3V 1 CH E3/DS3/STS W/JITTER ATTEN RoHS:否 制造商:PLX Technology 工作电源电压: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:FCBGA-1156 封装:Tray |
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