Figure-48 1+1 HPS Scheme, E1 75 ohm Single-En" />
參數(shù)資料
型號(hào): IDT82P2821BHG
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 123/151頁
文件大?。?/td> 0K
描述: IC LINE INTERFACE UNIT 640-PBGA
標(biāo)準(zhǔn)包裝: 5
功能: 線路接口單元(LIU)
接口: E1,J1,T1
電路數(shù): 1
電源電壓: 1.8V, 3.3V
工作溫度: -40°C ~ 85°C
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
包括: 缺陷和警報(bào)檢測,驅(qū)動(dòng)器過流檢測和保護(hù),LLOS 檢測,PRBSARB / IB 檢測和生成
其它名稱: 800-1703
82P2821BHG
IDT82P2821
21(+1) CHANNEL HIGH-DENSITY T1/E1/J1 LINE INTERFACE UNIT
Miscellaneous
73
February 6, 2009
Figure-48 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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