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參數(shù)資料
| 型號(hào)： | XRT83SH314IB-F |
| 廠商： | Exar Corporation |
| 文件頁(yè)數(shù)： | 43/101頁(yè) |
| 文件大小： | 0K |
| 描述： | IC LIU T1/E1/J1 14CH 304TBGA |
| 標(biāo)準(zhǔn)包裝： | 27 |
| 類型： | 線路接口裝置（LIU） |
| 驅(qū)動(dòng)器/接收器數(shù)： | 14/14 |
| 規(guī)程： | T1，E1，J1 |
| 電源電壓： | 3.135 V ~ 3.465 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 304-BBGA |
| 供應(yīng)商設(shè)備封裝： | 304-PBGA（31x31） |
| 包裝： | 托盤 |
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XRT83SH314
42
14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
REV. 1.0.4
4.8
XRT83SH314 Jitter Characteristics
There are three important jitter requirements for T1/E1 physical layer devices. Jitter Tolerance and Wander,
Intrinsic Jitter and Jitter Transfer Characteristics.
(a) Jitter Tolerance. (b) Intrinsic Jitter Characteristics (transmit path). (c) Jitter Transfer Curve (transmit path).
4.8.1
Jitter Tolerance
4.8.1.1
DS-1 Jitter Tolerance
Jitter tolerance is a measure of the amount of jitter (amplitude for a given frequency) that can be applied to the
input ports of the DS-1 LIU and still maintain signal integrity. The two pieces of equipment most commonly
used in the EXAR laboratory are the W&G ANT-20 and the OMNI BER from Agilent. The network analyzer
runs a sweep of frequencies ranging from 10Hz to 80kHz. Each frequency step (component) becomes a data
point at which the amplitude (UI, Unit Interval) is increased until bit errors are detected within the bit error
tolerance. If an error is detected, the amplitude of the jitter is reduced by one decrement, and this value
becomes the jitter tolerance at that particular frequency. The network analyzer then increases the frequency to
the next data point and repeats the process of increasing the amplitude. The Jitter Tolerance test results in a
graph showing the LIU performance relative to the mask outlined in GR-499. The LIU curve must be above the
mask at all frequencies in order to comply with industry specifications.
FIGURE 34. TEST CIRCUIT FOR DS-1 JITTER TOLERANCE
FIGURE 35. GR-499 JITTER TOLERANCE MASK
DS-1 LIU
Network
Analyzer
Tx
Rx
223- 1
655ft cable loss
6dB flat loss
T1 Jitter Tolerance GR-499
0.1
1
10
1
10
100
1000
10000
100000
Frequency (Hz)
Amplitude
(UI)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| XRT83SH38IB-F | IC LIU SH T1/E1/J1 8CH 225BGA |
| XRT86L30IV-F | IC LIU/FRAMER TI/E1/J1 SGL 128LQ |
| XRT86VL30IV-F | IC FRAMR/LIU T1/E1/J1 QD 128LQFP |
| XRT86VL32IB-F | IC LIU/FRAMER T1/E1/J1 2CH 225BG |
| XRT86VL34IB-F | IC LIU/FRAMER T1/E1/J1 4CH 225BG |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRT83SH314IB-SAK | 制造商:Exar Corporation 功能描述:14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT 制造商:EXAR 功能描述:14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT |
| XRT83SH38 | 制造商:EXAR 制造商全稱:EXAR 功能描述:8-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT |
| XRT83SH38_0609 | 制造商:EXAR 制造商全稱:EXAR 功能描述:8-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT |
| XRT83SH38ES | 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 8 CHT1/E1LIUSH 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 |
| XRT83SH38IB | 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 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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