參數(shù)資料
型號(hào): XRT75VL00D
廠商: Exar Corporation
英文描述: E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
中文描述: E3/DS3/STS-1線路接口單元與SONET DESYNCHRONIZER
文件頁數(shù): 31/92頁
文件大?。?/td> 836K
代理商: XRT75VL00D
XRT75VL00D
REV. 1.0.3
E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
32
6.0
JITTER:
There are three fundamental parameters that describe circuit performance relative to jitter:
Jitter Tolerance (Receiver)
Jitter Transfer (Receiver/Transmitter)
Jitter Generation
6.1
JITTER TOLERANCE - RECEIVER:
Jitter tolerance is a measure of how well a Clock and Data Recovery unit can successfully recover data in the
presence of various forms of jitter. It is characterized by the amount of jitter required to produce a specified bit
error rate. The tolerance depends on the frequency content of the jitter. Jitter Tolerance is measured as the
jitter amplitude over a jitter spectrum for which the clock and data recovery unit achieves a specified bit error
rate (BER). To measure the jitter tolerance as shown in Figure 21, jitter is introduced by the sinusoidal
modulation of the serial data bit sequence.
Input jitter tolerance requirements are specified in terms of compliance with jitter mask which is represented as
a combination of points.Each point corresponds to a minimum amplitude of sinusoidal jitter at a given jitter
frequency.
6.1.1
DS3/STS-1 Jitter Tolerance Requirements:
Bellcore GR-499 CORE, Issue 1, December 1995 specifies the minimum requirement of jitter tolerance for
Category I and Category II. The jitter tolerance requirement for Category II is the most stringent. Figure 22
shows the jitter tolerance curve as per GR-499 specification along with the measured performance for the
device.
FIGURE 21. JITTER TOLERANCE MEASUREMENTS
FREQ
Synthesizer
FREQ
Synthesizer
Pattern
Generator
Pattern
Generator
DUT
XRT75VL00D
DUT
XRT75VL00D
Error
Detector
Error
Detector
Modulation
Freq.
Data
Clock
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XRT75VL00D_08 制造商:EXAR 制造商全稱:EXAR 功能描述:E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET
XRT75VL00D1V-F 制造商:Exar Corporation 功能描述:
XRT75VL00DES 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 1CHT3/E3/STS1LIU+ DESYNC 3.3V DRV VER 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
XRT75VL00DIV 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 3.3V 1 CH E3/DS3/STS W/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
XRT75VL00DIV-F 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 3.3V 1 CH E3/DS3/STS W/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