Figure-6 Receive Differential Line Interfa" />
參數(shù)資料
型號: IDT82P2916BFG
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 56/138頁
文件大?。?/td> 0K
描述: IC LIU T1/E1/J1 16CH SH 484BGA
標(biāo)準(zhǔn)包裝: 84
功能: 線路接口單元(LIU)
接口: E1,J1,T1
電路數(shù): 16
電源電壓: 1.8V, 3.3V
功率(瓦特): 3.10W
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 484-LFBGA
供應(yīng)商設(shè)備封裝: 484-CABGA(19x19)
包裝: 托盤
包括: AIS 警報(bào)檢測器和發(fā)生器,回送功能,PRBS 發(fā)生器 / 檢測器,遠(yuǎn)程檢測器和發(fā)生器
IDT82P2916
16-CHANNEL HIGH-DENSITY T1/E1/J1 LINE INTERFACE UNIT
Functional Description
24
April 24, 2010
Figure-6 Receive Differential Line Interface with Twist-
ed Pair Cable (transformer-less, non standard compli-
ant)
3.2.1.2 Receive Single Ended Mode
Receive Single Ended mode can only be used in 75
coaxial cable
applications.
In Receive Single Ended mode, only External Impedance Matching is
supported. External Impedance Matching circuit uses an external
resistor (Rr) only. The value of the resistor is 18.75
(see Figure-7 for
details) when the single end is connected with a 2:1 transformer or is 75
(see Figure-8 for details) when the single end is connected without a
transformer.
In Receive Single Ended mode, the RIM pin should be left open and
the configuration of the R_TERM[2:0] bits (b2~0, RCF0,...) is ignored.
Figure-7 Receive Single Ended Line Interface with Co-
axial Cable (with transformer)
Figure-8 Receive Single Ended Line Interface with Co-
axial Cable (transformer-less, non standard compliant)
IM
6.0Vpp
RTIPn
RRINGn
Rr/2
VCOM1
10 F
1. Two Rr/2 resistors should be connected to VCOM[1:0] that are
coupled to ground via a 10
F capacitor, which provide 60
common mode input resistance.
2. In this mode, lightning protection should be enhanced.
3. The maximum input dynamic range of RTIP/TRING pin is
-0.3 V ~3.6 V (in line monitor mode it is -0.3 V ~ 2 V)
Note:
VCOM0
2:1
Rr
RTIPn
RRINGn
4.74 Vpp
470 nF
IM
Rr2
RTIPn
RRINGn
4.74 Vpp
470 nF
Rr1
Rr = Rr1 + Rr2 = 75
In this mode, port protection should be enhanced.
Note:
IM
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