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| 型號(hào)： | XRT75L00DIV |
| 廠商： | Exar Corporation |
| 文件頁(yè)數(shù)： | 72/92頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC LIU E3/DS3/STS-1 SGL 52TQFP |
| 標(biāo)準(zhǔn)包裝： | 96 |
| 類(lèi)型： | 線路接口裝置（LIU） |
| 驅(qū)動(dòng)器/接收器數(shù)： | 1/1 |
| 規(guī)程： | DS3，E3，STS-1，SONET |
| 電源電壓： | 3.135 V ~ 3.465 V |
| 安裝類(lèi)型： | 表面貼裝 |
| 封裝/外殼： | 52-LQFP |
| 供應(yīng)商設(shè)備封裝： | 52-TQFP（10x10） |
| 包裝： | 托盤(pán) |
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XRT75L00D
E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
REV. 1.0.2
69
NOTE: All of these intrinsic jitter measurements are to be performed using a band-pass filter of 10Hz to 400kHz.
Each of the scenarios presented in Table 18, are briefly described below.
9.5.1
DS3 De-Mapping Jitter
DS3 De-Mapping Jitter is the amount of Intrinsic Jitter that will be measured within the "Line" or "Facility-side"
DS3 signal, (after it has been de-mapped from a SONET signal) without the occurrence of "Pointer
Adjustments" within the SONET signal.
Telcordia GR-253-CORE requires that the "DS3 De-Mapping" Jitter be less than 0.4UI-pp, when measured
over all possible combinations of DS3 and STS-1 frequency offsets.
9.5.2
Single Pointer Adjustment
Telcordia GR-253-CORE states that if each pointer adjustment (within a continuous stream of pointer
adjustments) is separated from each other by a period of 30 seconds, or more; then they are sufficiently
isolated to be considered "Single-Pointer Adjustments".
Figure 48 presents an illustration of the "Single Pointer Adjustment" Scenario.
Telcordia GR-253-CORE states that the Intrinsic Jitter that is measured (within the DS3 signal) that is
ultimately de-mapped from a SONET signal that is experiencing "Single-Pointer Adjustment" events, must NOT
exceed the value 0.3UI-pp + Ao.
NOTES:
1.
Ao is the amount of Intrinsic Jitter that was measured during the "De-Mapping" Jitter portion of this test.
2.
Testing must be performed for both Incrementing and Decrementing Pointer Adjustments.
9.5.3
Pointer Burst
Figure 49 presents an illustration of the "Pointer Burst" Pointer Adjustment Scenario per Telcordia GR-253-
CORE.
Continuous Add
A5
1.3UI-pp
Includes effects of Jitter from Clock-Gapping, De-Map-
ping and Pointer Adjustments.
Continuous Cancel
A5
1.3UI-pp
Includes effects of Jitter from Clock-Gapping, De-Map-
ping and Pointer Adjustments.
FIGURE 48. ILLUSTRATION OF SINGLE POINTER ADJUSTMENT SCENARIO
TABLE 18: SUMMARY OF "CATEGORY I INTRINSIC JITTER REQUIREMENT PER TELCORDIA GR-253-CORE, FOR DS3
APPLICATIONS
SCENARIO
DESCRIPTION
SCENARIO
NUMBER
TELCORDIA GR-253-CORE
CATEGORY I INTRINSIC
JITTER REQUIREMENTS
COMMENTS
Initialization
Cool Down
Measurement Period
>30s
Pointer Adjustment Events
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRT75L00DIV-F | 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 1-Ch DS3, E3, SONET 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 |
| XRT75L00DIVTR | 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 |
| XRT75L00DIVTR-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 |
| XRT75L00ES | 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 1CH T3/E3/STS1 LIU+JA 3.3V 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 |
| XRT75L00IV | 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 3.3V 1 CH E3/DS3/STS W/JITTER ATTEN 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 |
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