参数资料
型号: XRT83SL314IB-L
厂商: Exar Corporation
文件页数: 15/83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-LBGA
供应商设备封装: 304-TBGA(31x31)
包装: 托盘
XRT83SL314
xr
REV. 1.0.1
14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
19
2.4
Equalizer Attenuation Flag
The ability to detect the amount of cable loss on the receiver inputs is enhanced by having the ability to
generate an interrupt by programming a pre-determined value for cable loss into the EQFLAG[5:0] global
register. This is particularly useful in applications where it is necessary for the LIU to generate an interrupt for
a cable loss which is lower than the declaration of the RLOS feature (see the RLOS section in this datasheet).
If the contents of the EQFLAG[5:0] register bits are equal to or less than the contents in the cable loss indicator
bits CLOS[5:0] for a given channel, an interrupt will be generated (if enabled in the appropriate channel register
and GIE is to "1"). Using the same example in Figure 7, a simplified block diagram of the equalizer flag is
shown in Figure 8.
FIGURE 8. SIMPLIFIED BLOCK DIAGRAM OF THE EQUALIZER ATTENUATION FLAG
2.5
Peak Detector and Slicer
The peak detector provides feedback to the equalizer control circuit until the amplitude of the incoming signal is
at an appropriate level. Once this level is obtained, the slicer identifies the incoming signal as a "1" and passes
the raw data to the clock and data recovery circuit. The slicer threshold is selected by programming SL[1:0] in
the appropriate global register. Selecting the slicer level is shown in Table 4.
TABLE 4: SELECTING THE SLICER LEVEL FOR THE PEAK DETECTOR
SL[1:0]
SLICER LEVEL
0h (00)
50%
1h (01)
45%
2h (10)
55%
3h (11)
68%
XRT83SL314
-15dB of Cable
Loss
Equalizer and
Peak Detector
CLOS[5:0] = 0x0Fh
EQFLAG[5:0] = 0x0Fh
Programmable
If (CLOS = EQFLAG)
Generate an Interrupt
Receiver Inputs
RTIP/RRING
Read Only
相关PDF资料
PDF描述
XRT83SL34IV-F IC LIU T1/E1/J1 QUAD 128TQFP
XRT83SL38IB-F IC LIU SH T1/E1/J1 OCTAL 225BGA
XRT83VL38IB-F IC LIU SH T1/E1/J1 OCTAL 225BGA
XRT83VSH28IB IC LIU SH E1 OCTAL 225BGA
XRT83VSH314IB-F IC LIU SH T1/E1/J1 14CH 304TBGA
相关代理商/技术参数
参数描述
XRT83SL34 制造商:EXAR 制造商全称:EXAR 功能描述:QUAD T1/E1/J1 SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
XRT83SL34ES 功能描述:外围驱动器与原件 - PCI 4 CHT1/E1 LIUSH 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
XRT83SL34IV 功能描述:时钟合成器/抖动清除器 RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel
XRT83SL34IV-F 功能描述:时钟合成器/抖动清除器 RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel
XRT83SL38 制造商:EXAR 制造商全称:EXAR 功能描述:OCTAL T1/E1/J1 SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR