Texas Instruments MSP430x4xx User Manual
Page 410
SD16 Operation
21-7
SD16
Figure 21−3 shows the digital filter step response and conversion points. For
step changes at the input after start of conversion a settling time must be
allowed before a valid conversion result is available. The SD16INTDLYx bits
can provide sufficient filter settling time for a full-scale change at the ADC
input. If the step occurs synchronously to the decimation of the digital filter the
valid data will be available on the third conversion. An asynchronous step will
require one additional conversion before valid data is available.
Figure 21−3. Digital Filter Step Response and Conversion Points
1
2
3
4
1
0
0.2
0.4
0.6
0.8
1
0
0.2
0.4
0.6
0.8
1
2
3
Asynchronous Step
Synchronous Step
% V
FSR
Conversion
Conversion
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