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7 Analog Modules Time Interval Analyzer

226 System Reference, January 2001

Figure 101 TIA Measurement Functions

The TIA can measure intervals with the specified numbers

of samples and store them into the local memory, then

return the following data calculated from the raw sampled

data as the measurement results:

•Maximum value

• Minimum value

• Jitter RMS (standard deviation)

• Mean (averaged value)

Edges to Start and Stop Measurement

For edge types determined by the

measureMode

setting,

the TIA starts counting edges for start and/or stop chan-

nels to perform the time measurement after the trigger

signal is detected.

trigDelayCntStart

and

trigDe-

layCntStop

are used to specify at which edges to start

and stop the measurement. They have different meanings

depending on which measurement is performed:

CH 1

Period (PER)

= 1/Frequency (FREQ)

Pulse Width (PW+)

Pulse Width (PW-)

CH 1

Start Channel

CH 2

Stop Channel

PD+-

PD-+ PD--

Propagation Delay

PD++

Single Channel

Dual Channel

tia_ov1

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AWG G3 PAD FOR PS3 Specifiche Pagina 226