XRT73LC00A_08 Datasheet, PDF (18/63 Pages) Exar Corporation – E3/DS3/STS-1 LINE INTERFACE UNIT

REV. 1.0.1
XRT73LC00A
E3/DS3/STS-1 LINE INTERFACE UNIT
FIGURE 1. TIMING DIAGRAM OF THE TRANSMIT TERMINAL INPUT INTERFACE
t_RTX
t_FTX
TClk
t_TSU
t_THO
TPDATA or
TNDATA
TTIP or
t_TDY
TRING
FIGURE 2. TIMING DIAGRAM OF THE RECEIVE TERMINAL OUTPUT INTERFACE
RClk
LCV
RPOS or
RNEG
t_RRX
t_LCVO
t_CO
t_FRX
FIGURE 3. TRANSMIT PULSE AMPLITUDE TEST CIRCUIT FOR DS3, E3 AND STS-1 RATES
TTIP
R1
31.6Ω
TRING
R2
31.6Ω
T1
R3
75Ω
1:1
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