參數(shù)資料
型號: XRT91L34IVTR
廠商: Exar Corporation
文件頁數(shù): 10/38頁
文件大?。?/td> 0K
描述: IC MULTIRATE CDR QUAD 128LQFP
標(biāo)準(zhǔn)包裝: 750
類型: 時鐘和數(shù)據(jù)恢復(fù)(CDR),扇出緩沖器(分配),多路復(fù)用器
PLL:
主要目的: SONET/SDH,STS,STM
輸入: LVDS,LVPECL
輸出: LVDS,LVPECL
電路數(shù): 1
比率 - 輸入:輸出: 1:2
差分 - 輸入:輸出: 是/是
頻率 - 最大: 622.08MHz
電源電壓: 1.71 V ~ 3.465 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 128-LQFP
供應(yīng)商設(shè)備封裝: 128-LQFP(14x14)
包裝: 帶卷 (TR)
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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