Tabor Electronics 5064, User Manual

Page: 126 / 369

3
Using the Instrument
Using the Auxiliary Functions
3-55
Rise Time
The rise time defines the time it takes for the pulse to transition from
its low level to its high level settings. Do not confuse this parameter
with the industry-standard interpretations of rise time such 10% to
90% of amplitude. The rise times is computed as part of the pulse
period and therefore, if you do not plan to have linear transitions,
change its value to 0 s.
High Time
The high time defines the time idles on its high level setting. Do not
confuse this parameter with the industry-standard interpretations of
pulse width that is normally measured at 50% of amplitude level.
Fall Time
The fall time defines the time it takes for the pulse to transition from
its high level to its low level settings. Do not confuse this parameter
with the industry-standard interpretations of fall time such 90% to
10% of amplitude. The fall times is computed as part of the pulse
period and therefore, if you do not plan to have linear transitions,
change its value to 0 s.
High Level
The high level parameter defines the top amplitude level of the
pulse. Any value is acceptable as long as it is larger than the low
level setting and does not 10 V and does not fall short of
the 50 mV minimum high to low level setting.
Low Level
The low level parameter defines the lower amplitude level of the
pulse. Any value is acceptable as long as it is smaller than the high
level setting and does not exceed -10 V and does not fall short of
the 50 mV minimum high to low level setting.
Polarity
The polarity parameter provides access to selecting the polarity of
the pulse. Three options are available: Normal, Inverted and
Complemented. These options are defined below.
Normal – The pulse is generated with the parameters as
programmed for the pulse
Inverted – The pulse is inverted about the 0V base line setting
Complemented – The pulse is inverted about its mid-amplitude
base line setting
Note that except for Normal output, inverted and complemented
replace high and low levels and rise and fall times.
Double State
The Double State toggles between single and double pulse modes.
When double pulse state is turned on, the screen is replaced by an
icon that shows that the double pulse mode is on, as shown in
Figure 3-34. In this case, the Double Delay button is made available
enabling access to the double pulse delay parameter.