参数资料
型号: XRT83VSH38IB
厂商: Exar Corporation
文件页数: 17/76页
文件大小: 0K
描述: IC LIU SH T1/E1/J1 8CH 225BGA
标准包装: 84
类型: 线路接口装置(LIU)
驱动器/接收器数: 8/8
规程: T1,E1,J1
电源电压: 3.14 V ~ 3.47 V
安装类型: 表面贴装
封装/外壳: 225-BGA
供应商设备封装: 225-BGA(19x19)
包装: 托盘
XRT83VSH38
21
8-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
REV. 1.1.0
3.1.2
CASE 2: Internal Termination With One External Fixed Resistor for All Modes
Along with the internal termination, a high precision external fixed resistor can be used to optimize the return
loss. This external resistor can be used for all modes of operation ensuring one bill of materials. There are
three resistor values that can be used by setting the RxRES[1:0] bits in the appropriate channel register.
Selecting the value for the external fixed resistor is shown in Table 4.
By default, RxRES[1:0] is set to "None" for no external fixed resistor. If an external fixed resistor is used, the
XRT83VSH38 uses the parallel combination of the external fixed resistor and the internal termination as the
input impedance. See Figure 7 for a typical connection diagram using the external fixed resistor.
NOTE: Without the external resistor, the XRT83VSH38 meets all return loss specifications. This mode was created to add
flexibility for optimizing return loss by using a high precision external resistor.
FIGURE 7. TYPICAL CONNECTION DIAGRAM USING ONE EXTERNAL FIXED RESISTOR
TABLE 4: SELECTING THE VALUE OF THE EXTERNAL FIXED RESISTOR
RXRES[1:0]
EXTERNAL FIXED RESISTOR
0h (00)
None
1h (01)
240
2h (10)
210
3h (11)
150
RTIP
RRING
XRT83VSH38 LIU
1:1
Internal Impedance
Line Interface T1/E1/J1
R
R=240
, 210, or 150
Receiver
Input
相关PDF资料
PDF描述
XRT85L61IG IC BITS CLOCK EXTRACTOR 28TSSOP
XRT91L30IQ IC TXRX SONET/SDH 8BIT 64QFP
XRT91L32IQTR IC TXRX SONET/SDH 8BIT 100QFP
XRT91L80IB-F IC TXRX SONET/SDH 4BIT 196STBGA
ZSD100N8TA IC DRIVER SIREN 8-SOIC
相关代理商/技术参数
参数描述
XRT83VSH38IB-F 功能描述:外围驱动器与原件 - PCI 8 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
XRT83VSH38IB-F 制造商:Exar Corporation 功能描述:T1/E1 LIU IC
XRT84L38 制造商:EXAR 制造商全称:EXAR 功能描述:OCTAL T1/E1/J1 FRAMER
XRT84L38_06 制造商:EXAR 制造商全称:EXAR 功能描述:OCTAL T1/E1/J1 FRAMER
XRT84L38IB 功能描述:网络控制器与处理器 IC 8 Ch T1/E1 Framer RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流(最大值):595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray