參數(shù)資料
型號(hào)： XRT83VSH28
廠商： Exar Corporation
英文描述： 8-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT
中文描述： 8路E1短途線路接口單元
文件頁數(shù)： 35/74頁
文件大?。?/td> 574K
代理商： XRT83VSH28
PRELIMINARY
8-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT
XRT83VSH28
32
REV. P1.0.0
4.0
E1 APPLICATIONS
This applications section describes common E1 system considerations along with references to application
notes available for reference where applicable.
4.1
Loopback Diagnostics
The XRT83VSH28 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 20
.
F
IGURE
20. S
IMPLIFIED
B
LOCK
D
IAGRAM
OF
L
OCAL
A
NALOG
L
OOPBACK
N
OTE
:
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 21
.
F
IGURE
21. S
IMPLIFIED
B
LOCK
D
IAGRAM
OF
R
EMOTE
L
OOPBACK
Encoder
Decoder
Timing
Control
Data and
Clock
Recovery
JA
JA
Tx
TAOS
QRSS
TTIP
TRING
RTIP
RRING
TCLK
TPOS
TNEG
RCLK
RPOS
RNEG
Rx
Encoder
Decoder
Timing
Control
Data and
Clock
Recovery
JA
JA
Tx
Rx
TAOS
QRSS
TTIP
TRING
RTIP
RRING
TCLK
TPOS
TNEG
RCLK
RPOS
RNEG
相關(guān)PDF資料
PDF描述
XRT83VSH28IB 8-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT
XRT83VSH314 14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
XRT83VSH314IB 14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
XRT83VSH316 16-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
XRT83VSH316IB 16-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XRT83VSH28ES 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 8 CH E1 LIU SH (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
XRT83VSH28IB 功能描述:接口 - 專用 8 Ch T1/E1 Framer 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
XRT83VSH28IB-F 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 8 Channel 1.8V-3.3V temp -45 to 85C 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
XRT83VSH28IB-F 制造商:Exar Corporation 功能描述:T1/E1 LIU IC
XRT83VSH314 制造商:EXAR 制造商全稱:EXAR 功能描述:14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
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