Timing Parameters
1-60
DTG5078 & DTG5274 & DTG5334 Data Timing Generator User Manual 2
Clock Range
In any section in which the output clock frequency (user-defined clock frequency)
is slow, the data is enlarged by a factor of the vector rate according to the output
clock frequency. In addition, the internal hardware clock frequency is increased to
cause a long delay. As described here, the factor for enlarging the data and that for
increasing the internal clock frequency are determined according to the output
frequency. Therefore, before using Long Delay, you must specify the output clock
frequency value in the Clock Range.
Clock Range is displayed and available if Long Delay is on in the Data Generator
mode.
Table 1-19 and 1-20 summarize the relationship among the Clock Range settings,
the vector rate, and the hardware frequency.
Table 1-18: Characteristics of Long Delay
Long Delay Off
Long Delay On
Changing the
delay and pulse
width
By hardware
By hardware and software
Valid ranges of
delay and pulse
width
Small
Large
Pattern memory
usage
Fixed
Vector length itself if the pattern
contains only NRZ.
Double length of the vector, if the
pattern includes RZ or R1.
Increases in proportion to the vector
rate. (The lower the user-defined
frequency, the higher the vector rate.)
If the program includes Jump, Goto,
or Wait, the memory usage increases
correspondingly.
Sequence
memory usage
Sequence definition itself
If the program includes Jump, Goto,
or Wait, the memory usage increases
correspondingly.
Command
jump/Event jump
Available
Not available
Wait, Goto, Inf.,
subsequence
Available
Available
Summary of Contents for DTG5078
Page 4: ......
Page 10: ...Table of Contents iv DTG5078 DTG5274 DTG5334 Data Timing Generator User Manual 2...
Page 19: ...Reference...
Page 20: ......
Page 24: ...Operating Modes 1 4 DTG5078 DTG5274 DTG5334 Data Timing Generator User Manual 2...
Page 34: ...Data Structure 1 14 DTG5078 DTG5274 DTG5334 Data Timing Generator User Manual 2...
Page 58: ...Pattern Edit 1 38 DTG5078 DTG5274 DTG5334 Data Timing Generator User Manual 2...
Page 88: ...Timing Parameters 1 68 DTG5078 DTG5274 DTG5334 Data Timing Generator User Manual 2...
Page 100: ...DC Output 1 80 DTG5078 DTG5274 DTG5334 Data Timing Generator User Manual 2...
Page 120: ...Jitter Generation 1 100 DTG5078 DTG5274 DTG5334 Data Timing Generator User Manual 2...
Page 146: ...Pulse Generator mode 1 126 DTG5078 DTG5274 DTG5334 Data Timing Generator User Manual 2...
Page 150: ...Offline mode 1 130 DTG5078 DTG5274 DTG5334 Data Timing Generator User Manual 2...
Page 176: ...Diagnostics and Calibration 1 156 DTG5078 DTG5274 DTG5334 Data Timing Generator User Manual 2...
Page 177: ...Appendices...
Page 178: ......
Page 186: ...Appendix B System Recovery B 4 DTG5078 DTG5274 DTG5334 Data Timing Generator User Manual 2...
Page 189: ...Index...
Page 190: ......
Page 196: ...Index Index 6 DTG5078 DTG5274 DTG5334 Data Timing Generator User Manual 2...