3151 And 3151A User Manual
Getting Started 1-10
The following sequence was made of segment 2 repeated twice,
segment 3 repeated once and segment 1 repeated four times.
Figure 1-5, Sequenced Waveforms
Output State
The main output can be turned on or off. The internal circuit is
disconnected from the output BNC connector by a mechanical switch
(relay). This feature is useful for connecting the Model 3151/3151A
main output, along with other instruments, to an analog bus. For
safety reasons, after power on, the main output is always off.
Synchronization
Multiple Model 3151/3151A s may be synchronized and operated
together inside one VXIbus chassis. With one instrument configured
as master and the rest of the instruments configured as slaves, the
instruments are phase-locked to the start phase on the master
module. The slave modules may be configured to have phase offsets
within the range of 0
B
to 360
B
. There is no need to install multiple
Model 3151/3151A modules in adjacent slots to be able to phase
synchronize modules
.
Filter
Three filters are built into the Model 3151/3151A, each having a
different cutoff frequency and rise time properties. These filters are
available for use in various applications, depending on the specific
application. The 20 MHz Gaussian filter has a gaussian response
which smooths fast transitions and eliminates ringing and
aberrations. The 25 MHz and the 50 MHz filters are elliptical with a
very sharp cutoff frequency. They are useful for removing the
staircase effect from waveforms that are generated with high
frequency clock rates.
Содержание 3151
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