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參數(shù)資料
| 型號(hào)： | XRT83SH314IB-F |
| 廠商： | Exar Corporation |
| 文件頁(yè)數(shù)： | 32/101頁(yè) |
| 文件大?。?/td> | 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
32
14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
REV. 1.0.4
4.0
T1/E1 APPLICATIONS
This applications section describes common T1/E1 system considerations along with references to application
notes available for reference where applicable.
4.1
Loopback Diagnostics
The XRT83SH314 supports several loopback modes for diagnostic testing. The following section describes
the local analog loopback, remote loopback, digital loopback, and dual loopback modes.
4.1.1
Local Analog Loopback
With local analog loopback activated, the transmit output data at TTIP/TRING is internally looped back to the
analog inputs at RTIP/RRING. External inputs at RTIP/RRING are ignored while valid transmit output data
continues to be sent to the line. A simplified block diagram of local analog loopback is shown in Figure 22.
FIGURE 22. SIMPLIFIED BLOCK DIAGRAM OF LOCAL ANALOG LOOPBACK
NOTE: The transmit diagnostic features such as TAOS and QRSS take priority over the transmit input data at TCLK/TPOS/
TNEG.
4.1.2
Remote Loopback
With remote loopback activated, the receive input data at RTIP/RRING is internally looped back to the transmit
output data at TTIP/TRING. The remote loopback includes the Receive JA (if enabled). The transmit input
data at TCLK/TPOS/TNEG are ignored while valid receive output data continues to be sent to the system. A
simplified block diagram of remote loopback is shown in Figure 23.
FIGURE 23. SIMPLIFIED BLOCK DIAGRAM OF REMOTE LOOPBACK
Encoder
Decoder
Timing
Control
Data and
Clock
Recovery
JA
Tx
TAOS
QRSS/PRBS
TTIP
TRING
RTIP
RRING
TCLK
TPOS
TNEG
RCLK
RPOS
RNEG
Rx
Encoder
Decoder
Timing
Control
Data and
Clock
Recovery
JA
Tx
Rx
TAOS
QRSS/PRBS
TTIP
TRING
RTIP
RRING
TCLK
TPOS
TNEG
RCLK
RPOS
RNEG
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|---|---|
| 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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