Figure-46 1+1 HPS Scheme, E1 75 ohm Single-Ended In" />
參數(shù)資料
型號: IDT82P2521BHG
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 118/147頁
文件大?。?/td> 0K
描述: IC LIU E1 21+1CH SHORT 640-PBGA
標準包裝: 5
類型: 線路接口裝置(LIU)
規(guī)程: E1
電源電壓: 3.135 V ~ 3.465 V
安裝類型: 表面貼裝
封裝/外殼: 640-BGA 裸露焊盤
供應商設備封裝: 640-PBGA-EP(31x31)
包裝: 托盤
其它名稱: 82P2521BHG
IDT82P2521
21(+1) CHANNEL HIGH-DENSITY E1 LINE INTERFACE UNIT
Miscellaneous
72
December 7, 2005
Figure-46 1+1 HPS Scheme, E1 75 ohm Single-Ended Interface (Shared Common Transformer)
Rx:
75
External Impedance Matching mode. In this mode, there is no external resistor required. The RIM pin should be left open and the configuration
of the R_TERM[2:0] bits (b2~0, RCF0,...) is ignored.
Tx:
75
Internal Impedance Matching mode. The
T_TERM[2:0] bits (b2~0, TCF0,...) should be set to ‘011’.
primary line card
backup line card
Tx
Rx
OE
RIM
OE
RIM
Hot switch control
4.7 F
19
0.47 F
1:2
VDDTn
VDDRn
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