Figure-48 1:1 HPS Scheme, Differential Interf" />
參數(shù)資料
型號: IDT82P2828BHG
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 126/154頁
文件大?。?/td> 0K
描述: IC LIU T1/J1/E1 28+1CH 640-PBGA
標準包裝: 5
類型: 線路接口裝置(LIU)
規(guī)程: E1
電源電壓: 3.13 V ~ 3.47 V
安裝類型: 表面貼裝
封裝/外殼: 640-BGA 裸露焊盤
供應(yīng)商設(shè)備封裝: 640-PBGA-EP(31x31)
包裝: 托盤
其它名稱: 82P2828BHG
IDT82P2828
28(+1) CHANNEL HIGH-DENSITY T1/E1/J1 LINE INTERFACE UNIT
Miscellaneous
73
February 6, 2009
Figure-48 1:1 HPS Scheme, Differential Interface (Individual Transformer)
Tx
primary card
backup card
Tx
Rx
OE
RIM
OE
RIM
Hot switch control
1:2
1:1
VDDTn
VDDTn
VDDRn
VDDRn
VDDTn
VDDTn
VDDRn
VDDRn
Rx:
Fully Internal Impedance Matching mode. In this mode, there is no external resistor required. The R_TERM[2:0] bits (b2~0, RCF0,...)
setting is as follows: ‘000’ for T1 100
twisted pair cable, ‘001’ for J1 110 twisted pair cable, ‘010’ for E1 120 twisted pair cable and
‘011’ for E1 75
coaxial cable.
Tx:
Internal Impedance Matching mode. The T_TERM[2:0] bits (b2~0, TCF0,...) setting is as follows: ‘000’ for T1 100
twisted pair
cable, ‘001’ for J1 110
twisted pair cable, ‘010’ for E1 120 twisted pair cable and ‘011’ for E1 75 coaxial cable.
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