参数资料
型号: XRT91L34IV-F
厂商: Exar Corporation
文件页数: 10/38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:
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
XRT91L34
18
QUAD CHANNEL MULTIRATE STS-12/3/1 AND STM-4/1/0 SONET/SDH CDR
REV. 1.0.1
2.5
Multichannel Recovered Output Interface
The recovered data RXDO[3:0]P/N differential output drivers along with the recovered clock RXCLKO[3:0]P/N
differential output drivers can be configured for LVDS or Differential LVPECL standard operation. In addition,
Host Mode operation permits each of the channelized recovered clock output to be independently disabled
such as in repeater applications to save power.
FIGURE 8. MULTICHANNEL RECOVERED OUTPUT INTERFACE BLOCK
OUTCFG = 0
RXDO0P
RXDO0N
XRT91L34
STS-12/3/1
or
STM-4/1/0
Clock and Data
Recovery
RXDO1P
RXDO1N
RXDO2P
RXDO2N
RXDO3P
RXDO3N
Channel 0
Channel 1
Channel 2
Channel 3
LVDS Operation
100
Internal or External 100 Ohm
line-to-line termination required on
RXDO[3:0]P and RXDO[3:0]N pins
on the SONET Framer/ASIC end
SONET Framer/
ASIC
RXCLKO[3:0]P and
RXCLKO[3:0]N
Clock Output pins
terminated similarly
RXDO0P
RXDO0N
XRT91L34
STS-12/3/1
or
STM-4/1/0
Clock and Data
Recovery
RXDO1P
RXDO1N
RXDO2P
RXDO2N
RXDO3P
RXDO3N
Channel 0
Channel 1
Channel 2
Channel 3
LVPECL Operation
SONET Framer/
ASIC
82 x 8
Install terminators as close to
SONET Framer/ ASIC pins
120 x 8
VDDIO
RXCLKO[3:0]P and
RXCLKO[3:0]N
Clock Output pins
terminated similarly
OUTCFG = 1
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