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XRT82D20 Datasheet(PDF) 21 Page - Exar Corporation

Part # XRT82D20
Description  SINGLE CHANNEL E1 LINE INTERFACE UNIT
PDF  27 Pages
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

XRT82D20 Datasheet(HTML) 21 Page - Exar Corporation

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XRT82D20
SINGLE CHANNEL LINE INTERFACE UNIT
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REV. 1.0.7
19
NOTE: Resistive divider attenuates the input signal by one-
half for both 75
Ω and 120 Ω applications.
FIGURE 15. CAPACITIVELY-COUPLING THE RECEIVE SECTION FOR 120
Ω
Ω
Ω
Ω APPLICATION AND 3.3V SUPPLY
30.1
Ω
60.4
Ω
9.1
Ω
9.1
Ω
2:1
RTIP
RRING
TTIP
TRING
+3.3 V
0.1
µF
TVDD
AVDD
TxLEV
TNEG/CODE
TPOS/TData
TClk
RPOS/RData
RNEG/LCV
RClk
AGND
TGND
10
µF
Rx Input
Tx Output
0.1
µF
0.1
µF
30.1
Ω
R Load
120
Ω
120
Ω Twisted Pair
120
Ω
Signal
Source
120
Ω Twisted Pair



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