78P2352 Dual Channel OC-3/STM1-E/E4 Line Interface Unit
ELECTRICAL SPECIFICATIONS (continued)
TRANSMITTER TIMING CHARACTERISTICS:
PARAMETER
Clock Duty Cycle
Setup Time
Hold Time
Setup Time
Hold Time
SYMBOL
TTCF/TTC PTOxCK
CONDITIONS
MIN
40
4
4
2
NOM
MAX
60
UNIT
%
ns
ns
ns
TPS
TPH
TSS
TSH
Parallel mode
Parallel mode
Serial mode
Serial mode
2
ns
TIMING DIAGRAM: Transmitter Waveforms
SIxCKN
SIxCKP
SIxDP
SIxDN
TSS
TSH
PIxCK
PIxD<0:3>
TPH
TPS
TRC = 25.72ns
TRCF = 12.86ns
TTCT
PTOxCK
PIxD<0:3>
TPH
TPS
25