XRT73LC03A Datasheet, PDF (19/61 Pages) Exar Corporation – 3 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT

XRT73LC03A
3 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
REV. 1.0.1
FIGURE 5. TRANSMIT PULSE AMPLITUDE TEST CIRCUIT FOR E3, DS3 AND STS-1 RATES (TYPICAL CHANNEL)
TxPOS_(n)
TxNEG_(n)
TxLineClk_(n)
TTIP_(n)
Channel (n)
Channel (n)
TPData_(n)
TNData_(n)
TxClk_(n)
TRing_(n)
R1
31.6Ω
R2
31.6Ω
Only One Channel Shown
R3
75Ω
1:1
FIGURE 6. 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 7. TIMING DIAGRAM OF THE RECEIVE TERMINAL OUTPUT INTERFACE
RClk
LCV
RPOS or
RNEG
t_RRX
t_LCVO
t_CO
t_FRX
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