XRT73L03A Datasheet, PDF (38/62 Pages) Exar Corporation – 3 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT

XRT73L03A
3 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
REV. 2.0.4
Figure 23 presents the recommended schematic for
capacitive-coupling each Receive Section of the
XRT73L03A to the line.
FIGURE 23. RECOMMENDED SCHEMATIC FOR INTERFACING THE RECEIVE SECTION OF THE
XRT73L03A TO THE LINE (CAPACITIVE-COUPLING)
RxPOS_(n)
RxNEG_(n)
RxClk_(n)
RTIP_(n)
Channel (n)
RPOS_(n)
RNEG_(n)
RxClk_(n)
RRing_(n)
C1
0.01uf
J1
BNC
R1
75Ω
C2
0.01uf
Only One Channel Shown
3.2 THE RECEIVE EQUALIZER BLOCK
The purpose of this block is to equalize the incoming
distorted signal due to cable loss. The Receive
Equalizer attempts to restore the shape of the line
signal so that the transmitted data and clock can be
recovered reliably.
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