参数资料
| 型号： | XRT91L34IV |
| 厂商： | Exar Corporation |
| 文件页数： | 4/38页 |
| 文件大小： | 0K |
| 描述： | IC MULTIRATE CDR QUAD 128LQFP |
| 标准包装： | 72 |
| 类型： | 时钟和数据恢复（CDR），扇出缓冲器（分配），多路复用器 |
| PLL： | 是 |
| 主要目的： | SONET/SDH，STS，STM |
| 输入： | LVDS，LVPECL |
| 输出： | LVDS，LVPECL |
| 电路数： | 1 |
| 比率 - 输入:输出： | 1:2 |
| 差分 - 输入:输出： | 是/是 |
| 频率 - 最大： | 622.08MHz |
| 电源电压： | 1.71 V ~ 3.465 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 128-LQFP |
| 供应商设备封装： | 128-LQFP（14x14） |
| 包装： | 托盘 |
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XRT91L34
12
QUAD CHANNEL MULTIRATE STS-12/3/1 AND STM-4/1/0 SONET/SDH CDR
REV. 1.0.1
1.0
FUNCTIONAL DESCRIPTION
The XRT91L34 Quad Channel CDR is designed to operate with a multichannel SONET Framer/ASIC device
and provide a high-speed serial clock and data recovery interface to optical networks. The CDR receives
differential NRZ serial bit stream running at STS-12/STM-4 or STS-3/STM-1 or STS-1/STM-0, and outputs
recovered serial clock and data via differential LVDS/LVPECL drivers. It implements four independently
configurable receive clock and data recovery (CDR) units and a LOL and LOS detection circuit (Host Mode
Only) for each channel. The CDR is used to provide the front end component of SONET equipment.
1.1
Hardware Mode vs. Host Mode
Functional control of the receiver can be configured by using either Host mode or Hardware mode. Hardware
mode is selected by pulling HOST/HW "Low" or leaving this pin unconnected. The receiver functionality is then
controlled by the hardware pins described in the Hardware Pin Descriptions. Host mode is selected by pulling
HOST/HW "High". In Host mode the functionality is controlled by programming internal R/W registers using the
Serial Microprocessor interface. Host mode offers functions not available in Hardware mode, such as Loss of
Signal Monitoring, Interrupt Generation and Disabling of the recovered clock output.
1.2
STS-12/STM-4 and STS-3/STM-1 and STS-1/STM-0 Mode of Operation
The data rate of each receiver channel can be configured by using the appropriate signal level on the
DATAnRATE1:0] pins (where n = channel 0, 1, 2, or 3) as shown in Table 1.
NOTE: n denotes channel number.
TABLE 1: CHANNEL DATA RATE SELECTION
DATANRATE[1:0]
DATA RATE SELECTED FOR
CHANNEL N
0
STS-1/STM-0
51.84 Mbps
0
1
STS-3/STM-1
155.52 Mbps
1
0
STS-12/STM-4
622.08 Mbps
1
STS-12/STM-4
622.08 Mbps
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相关代理商/技术参数 |
参数描述 |
|---|---|
| XRT91L34IVF | 制造商:Exar Corporation 功能描述:CDR 51.84Mbps/155.52Mbps/622.08Mbps SONET/SDH 128-Pin LQFP 制造商:EXAR 功能描述:CDR 51.84Mbps/155.52Mbps/622.08Mbps SONET/SDH 128-Pin LQFP |
| XRT91L34IV-F | 功能描述:网络控制器与处理器 IC 8-Bit TTL 1.8V temp -45 to 85C;UART 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 |
| XRT91L34IVTR | 功能描述:网络控制器与处理器 IC 4 CH OC-12/STM4 OC-3/STM1 CDR 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 |
| XRT91L34IVTR-F | 功能描述:网络控制器与处理器 IC 4 CH OC-12/STM4 OC-3/STM1 CDR 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 |
| XRT91L80 | 制造商:EXAR 制造商全称:EXAR 功能描述:2.488/2.666 GBPS STS-48/STM-16 SONET/SDH TRANSCEIVER |
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