TFG2900A Series Function/Arbitrary Waveform Generator Users’ Guide
Suin Instruments Co., Ltd
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conform to the following formula:
Trigger signal period > (cycle numbers
×
burst signal delay time)
If you choose ‘Gate control’, you can only use external trigger source. Gate control output is two
cycles at least. If it is less than two cycles, burst signal won’t output completely waveform. The
period of gate control signal should conform to the following formula:
Gate control signal’s period>(2
×
burst signal period)
3.11.4 Delay Time:
Press
〖
DelayTime
〗
to set the delay time value. The delay time means output
time from burst period begin to burst signal starts.
3.11.5 Burst period
: Press
〖
BurstPeriod
〗
soft key to set the burst period. The burst period defines
lasting time from the start of one burst to the start of the next burst. The burst period must be long
enough to accommodate the cycle counts of burst signal, see below formula:
Burst Period > (cycle numbers
×
burst signal period)
If burst signal’s frequency changing causes burst period can’t contain the burst signal’s cycle
numbers, instrument will change delay time, cycle numbers and burst period value automatically
to the allowable minimum value.
3.11.6 Cycle numbers:
press
〖
Cycles
〗
to set burst signal’s cycle numbers. Cycle numbers defines
the burst signal numbers in a burst period. It must be small enough to be contained in burst period,
as following formula:
Cycle numbers<(burst period*burst signal frequency)
If the setting cycle numbers is too big to exceed the range, instrument will remind the users. Press
〖
Confirm
〗
to set it to allowable maximum value, in contrast, press
〖
Cancel
〗
to cancel this setting
value.
3.11.7 Start Phase
: Press
〖
Start Phase
〗
to set the start phase value. Burst signal’s start time and
end time are always in the same waveform’s phase, which is called start phase. Start phase setting
is unavailable for some waveforms, such as square wave.
3.11.8 Trigger Source
: Press
〖
Source
〗
to choose trigger source. If internal is chosen, instrument
will use internal trigger source and continuously output burst signals, at this time burst period
setting is effective. If you choose ‘manually’, once you press
〖
ManualTrig
〗
, burst signal will
output one time. If you choose external, instrument will use external trigger source, and burst
