Tektronix DTG5078, Руководство пользователя

Страница: 74 / 196

Timing Parameters
1-54
DTG5078 & DTG5274 & DTG5334 Data Timing Generator User Manual 2
Operations.
To specify the pulse change position, you can select Delay or Phase. If you want to
use Phase, move the cursor over the Delay column. Next, press the
SELECT key
to open the pop-up menu. Alternatively, press the MENU key to open the Edit
menu. Then, select Phase from the menu.
Trail Delay You can set Trail Delay in steps of 5 ps.
Table 1-15: Valid ranges of Trail Delay
Operation
Mode Long Delay Period Trail Delay
Data
Generator Off H/W maximum
delay x 2
If Jitter Generator is on and the channel has been assigned to
Slot A CH1 of the mainframe:
Minimum Pulse Width (– Delay Offset) to H/W Maximum Delay
+ Minimum Pulse Width (– Delay Offset)
Otherwise:
Minimum Pulse Width (– Delay Offset) to H/W Maximum Delay
+ Period / 2 (– Delay Offset)
The value converted into Duty must be 0% to 100%. In
addition, the pulse width must be in the range from ‘Minimum
Pulse Width’ to ‘Period – Minimum Pulse Width.’
H/W maximum
delay x 2
Period / 2 (– Delay Offset) to
H/W Maximum Delay + Period / 2 (–Delay Offset)
The value converted into Duty must be 0% to 100%. In
addition, the pulse width must be in the range from ‘Minimum
Pulse Width’ to ‘Period – Minimum Pulse Width.’
Data
Generator On The value converted into Duty must be 0% to 100%. In
addition, the pulse width must be in the range from ‘Minimum
Pulse Width’ to ‘Period – Minimum Pulse Width.’
Pulse
Generator 3
µ
s The value converted into Duty must be 0% to 100%. In
addition, the pulse width must be in the range from ‘Minimum
Pulse Width’ to ‘Period x Pulse Rate – Minimum Pulse Width.’
Minimum Pulse Width = 290 ps
H/W maximum delay = 5 ns
≤
≥
≥