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Valid Ranges of Pulse Parameters
DTG5078 & DTG5274 & DTG5334 Data Timing Generator User Manual 2
1-53
Valid Ranges of Pulse Parameters
The pulse pattern is determined by a combination of multiple pulse parameters.
This section summarizes the valid ranges of the Lead Delay and Trail Delay
parameters.
Lead Delay Like Delay Offset, you can set the Lead Delay in steps of 0.2ps for DTG5274 and
DTG5334, or 1 ps for DTG5078.
Phase To set the Lead Delay (s), you can also use Phase (%). You can use the following
expression to obtain the phase setting value based on the setting range of Lead
Delay. You can set the value in steps of 0.1%.
Phase = Lead Delay / (Period
×
Pulse Rate)
×
100 (%)
Pulse Rate : 2
0
to 2
4
(Pulse Generator mode)
1 (Data Generator mode)
Table 1-14: Valid ranges of Lead Delay
Operation
Mode Long Delay Format Period Lead Delay
Data
Generator Off 0 (– Delay Offset) to H/W maximum delay
1
(– Delay Offset)
On NRZ only 1.25 ns S/W Sequence:
0 (– Delay Offset) to 600 ns (–Delay Offset)
H/W Sequence:
0 (– Delay Offset) to 300 ns (– Delay Offset)
1.25 ns S/W Sequence: 0 (– Delay Offset) to 480 x Period
(– Delay Offset)
H/W Sequence: 0 (–Delay Offset) to 240 x Period
(–Delay Offset)
includes RZ or R1 2.5 ns S/W Sequence:
0 (– Delay Offset) to 600 ns (– Delay Offset)
H/W Sequence:
0 (– Delay Offset) to 300 ns (– Delay Offset)
2.5 ns S/W Sequence: 0 (– Delay Offset) to 240 x Period
H/W Sequence: 0 (– Delay Offset) to 120 x Period
(– Delay Offset)
Pulse
Generator 3
µ
s 0 (– Delay Offset) to Period (–Delay Offset)
3
µ
s 0 (– Delay Offset) to 3
µ
s (– Delay Offset)
1. H/W maximum delay = 5 ns
≥
≤
≥
≤
≥
≤