参数资料
| 型号： | XRT83VSH314IB |
| 厂商： | Exar Corporation |
| 文件页数： | 24/80页 |
| 文件大小： | 0K |
| 描述： | IC LIU SH T1/E1/J1 14CH 304TBGA |
| 标准包装： | 27 |
| 类型： | 线路接口装置（LIU） |
| 驱动器/接收器数： | 14/14 |
| 规程： | T1，E1，J1 |
| 电源电压： | 3.135 V ~ 3.465 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 304-BBGA |
| 供应商设备封装： | 304-PBGA（31x31） |
| 包装： | 托盘 |
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XRT83VSH314
27
14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
REV. 1.0.1
4.3
Jitter Attenuator
The XRT83VSH314 LIU is ideal for multiplexer or mapper applications where the network data crosses
multiple timing domains. As the higher data rates are de-multiplexed down to T1 or E1 data, stuffing bits are
typically removed which can leave gaps in the incoming data stream. The jitter attenuator can be selected in
the transmit path with a 32-Bit or 64-Bit FIFO that is used to smooth the gapped clock into a steady T1 or E1
output. The maximum gap width of the 14-Channel LIU is shown in Table 8.
NOTE: If the LIU is used in a loop timing system, the jitter attenuator can be selected in the receive path. See the Receive
Section of this datasheet.
4.4
TAOS (Transmit All Ones)
The XRT83VSH314 has the ability to transmit all ones on a per channel basis by programming the appropriate
channel register. This function takes priority over the digital data present on the TPOS/TNEG inputs. For
example: If a fixed "0011" pattern is present on TPOS in single rail mode and TAOS is enabled, the transmitter
will output all ones. In addition, if digital or dual loopback is selected, the data on the RPOS output will be
equal to the data on the TPOS input. Figure 16 is a diagram showing the all ones signal at TTIP and TRING.
FIGURE 16. TAOS (TRANSMIT ALL ONES)
4.5
Transmit Diagnostic Features
In addition to TAOS, the XRT83VSH314 offers multiple diagnostic features for analyzing network integrity such
as ATAOS and QRSS on a per channel basis by programming the appropriate registers. These diagnostic
features take priority over the digital data present on TPOS/TNEG inputs. The transmitters will send the
diagnostic code to the line and will be maintained in the digital loopback if selected.
When the LIU is
responsible for sending diagnostic patterns, the LIU is automatically placed in the single rail mode.
NOTE: Dual and Remote Loopback have priority over TAOS.
TABLE 8: MAXIMUM GAP WIDTH FOR MULTIPLEXER/MAPPER APPLICATIONS
FIFO DEPTH
MAXIMUM GAP WIDTH
32-Bit
9 UI
64-Bit
9 UI
TAOS
11
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| XRT83VSH314IB-F | 功能描述:外围驱动器与原件 - PCI 14 Channel Short-Haul RoHS:否 制造商:PLX Technology 工作电源电压: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:FCBGA-1156 封装:Tray |
| XRT83VSH314IB-SAM | 制造商:Exar Corporation 功能描述:FOR FUJITSU ONLY |
| XRT83VSH316 | 制造商:EXAR 制造商全称:EXAR 功能描述:16-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT |
| XRT83VSH316_07 | 制造商:EXAR 制造商全称:EXAR 功能描述:16-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT |
| XRT83VSH316ES | 功能描述:外围驱动器与原件 - PCI 16 CH T1/E1LIUSH LOW COST VERSION RoHS:否 制造商:PLX Technology 工作电源电压: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:FCBGA-1156 封装:Tray |
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