参数资料
型号: XRT75L00DIV
厂商: Exar Corporation
文件页数: 28/92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
XRT75L00D
E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
REV. 1.0.2
29
5.2
Clock and Data Recovery:
The Clock and Data Recovery Circuit extracts the embedded clock, from the sliced digital data stream and
provides the retimed data to the B3ZS (HDB3) decoder.
The Clock Recovery PLL can be in one of the following two modes:
TRAINING MODE:
In the absence of input signals at RTIP and RRing pins, or when the frequency difference between the
recovered line clock signal and the reference clock applied on the ExClk input pin exceed 0.5%, the clock
recovery unit enters into Training Mode and a Loss of Lock condition is declared by toggling RLOL output pin
“High” (in Hardware Mode) or setting the RLOL bit to “1” in the control registers (in Host Mode). Also, the clock
output on the RxClk pin is the same as the reference clock applied on ExClk pin.
DATA/CLOCK RECOVERY MODE:
In the presence of input line signals on the RTIP and RRing input pins and when the frequency difference
between the recovered clock signal and the reference clock signal is less than 0.5%, the clock that is output on
the RxClk out pin is the Recovered Clock signal.
5.3
B3ZS/HDB3 Decoder:
FIGURE 18. INTERFERENCE MARGIN TEST SET UP FOR E3.
TABLE 9: INTERFERENCE MARGIN TEST RESULTS
MODE
CABLE LENGTH (ATTENUATION)INTERFERENCE TOLERANCE
E3
0 dB
-14 dB
12 dB
-18 dB
DS3
0 feet
-17 dB
225 feet
-16 dB
450 feet
-16 dB
STS-1
0 feet
-16 dB
225 feet
-15 dB
450 feet
-15 dB
NOISE
GENERATOR
Pattern
Generator
Μ
ATTENUATOR 1
S
N
Cable Simulator
DUT
XRT75L00D
Test Equipm ent
ATTENUATOR 2
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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