CDB5460A Datasheet, PDF (15/28 Pages) Cirrus Logic – Evaluation Board and Software

CDB5460A
2.7.1 Integration Period Box
This box allows the user to select the length of time
which pulses will be collected over.
2.7.2 Periods To Average Box
This box allows the user to average a number of in-
tegration periods together.
2.7.3 Start Button
When the Start button is pressed, the CDB5460A
will capture pulse rate data according to the values
in the Integration Period and Periods to Average
boxes. After each integration period, the Pulse
Count and Frequency columns will be updated. The
Average Freq. and Standard Deviation columns
will only be updated after all of the integrations
have been collected. The software stops collecting
data when the user presses the Stop button, or when
the data collection is finished. Due to some speed
limitations of the on-board microcontroller, some
higher pulse rates cannot be accurately collected. If
the pulse rate is too high, a warning message will
appear.
2.8 Data Collection Window Overview
The Data Collection Window (Figure 6, Figure 7,
and Figure 8) allows the user to collect sample sets
of data from the CS5460A and analyze them using
time domain, FFT, and histogram plots. The Data
Collection Window is accessible through the Menu
option, or by pressing F5.
2.8.1 Time Domain / FFT / Histogram Selec-
tor
This menu selects the type of data processing to
perform on the collected data and display in the
plot area. Refer to the section on Analyzing Data
for more information.
Figure 6. Time Domain Analysis
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