Output State; Synchronization; Filter; Figure 1-5, Sequenced Waveforms - Racal Instruments 3151 User Manual

Output State

Synchronization

Filter

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

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.
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 0B to 360B. There is no need to install multiple
Model 3151/3151A modules in adjacent slots to be able to phase
synchronize modules
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.
3151 And 3151A User Manual
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