參數(shù)資料
型號(hào)： XRT83VSH316IB
廠商： EXAR CORP
元件分類： 數(shù)字傳輸電路
英文描述： 16-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
中文描述： DATACOM, PCM TRANSCEIVER, PBGA316
封裝： 21 X 21 MM, STBGA-316
文件頁(yè)數(shù)： 36/96頁(yè)
文件大?。?/td> 600K
代理商： XRT83VSH316IB
XRT83VSH316
PRELIMINARY
34
16-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
REV. P1.0.3
4.5
The transmit path has the ability to detect diagnostic patterns on the system side interface from the TPOS input
pin (Single Rail Mode Only). The LIU can detect an All Ones (SAIS), Loss of Signal (RLOS), or PRBS/QRSS
(SPRBS).
4.5.1
SLOS (System Loss of Signal)
The XRT83VSH316 supports both G.775 or ETSI-300-233 RLOS detection scheme.
In G.775 mode, LOS is declared when the received signal is less than 375mV for 32 consecutive pulse periods
(typical). The device clears LOS when the receive signal achieves 12.5% ones density with no more than 15
consecutive zeros in a 32 bit sliding window and the signal level exceeds 425mV (typical).
In ETSI-300-233 mode the device declares LOS when the input level drops below 375mV (typical) for more
than 2048 pulse periods (1msec).
The device exits LOS when the input signal exceeds 425mV (typical) and has transitions for more than 32
pulse periods with 12.5% ones density with no more than 15 consecutive zero’s in a 32 bit sliding window.
In T1 mode RLOS is declared when the received signal is less than 320mV for 175 consecutive pulse period
(typical). The device clears RLOS when the receive signal achieves 12.5% ones density with no more than 100
consecutive zeros in a 128 bit sliding window and the signal level exceeds 425mV (typical).
4.5.2
SYS_EXLOS (System Extended Loss of Signal)
By enabling the system extended loss of signal by programming the appropriate channel register, the digital
SLOS is extended to count 4,096 consecutive zeros before declaring SLOS in T1 and E1 mode. By default,
EXLOS is disabled and SLOS operates in normal mode.
4.5.3
SAIS (System Alarm Indication Signal)
The XRT83VSH316 adheres to the ITU-T G.775 specification for an all ones pattern. The alarm indication
signal is set to "1" if an all ones pattern (at least 99.9% ones density) is present for T, where T is 3ms to 75ms
in T1 mode. AIS will clear when the ones density is not met within the same time period T. In E1 mode, the
AIS is set to "1" if the incoming signal has 2 or less zeros in a 512-bit window. AIS will clear when the incoming
signal has 3 or more zeros in the 512-bit window.
Transmit Diagnostic Pattern Detection
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XRT83VSH316IB-F 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 16 Channel Short-Haul 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
XRT83VSH316IB-F 制造商:Exar Corporation 功能描述:T1/E1 LIU IC
XRT83VSH38 制造商:EXAR 制造商全稱:EXAR 功能描述:8-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
XRT83VSH38ES 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 8CH T1/E1LIUSH (low cost version) 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
XRT83VSH38IB 功能描述:接口 - 專用 8CH SH T1/E1 Line RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59
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