National Instruments USB-621 Series User Manual

Chapter 4 Analog Input
NI USB-621x User Manual 4-18 ni.com
Figure 4-10. AI Sample Clock Too Fast For AI Convert Clock;
AI Sample Clock Pulses Are Gated Off
Figure 4-11. AI Convert Clock Too Fast For AI Sample Clock;
AI Convert Clock Pulses Are Gated Off
Figure 4-12. AI Sample Clock and AI Convert Clock Improperly Matched;
Leads To Aperiodic Sampling
Figure 4-13. AI Sample Clock and AI Convert Clock Properly Matched
AI Sample Clock
AI Convert Clock
Sample #1 Sample #2 Sample #3
Channel Measured 1 2 3 0
1 2 3 0 1 2 3 0
AI Sample Clock
AI Convert Clock
Sample #1 Sample #2 Sample #3
1 2 3 0
1 2 3 0 1 2 3 0
Channel Measured
AI Sample Clock
AI Convert Clock
Sample #1 Sample #2 Sample #3
1 2 3 0
0
Channel Measured
1 2 3 0
AI Sample Clock
AI Convert Clock
Sample #1 Sample #2 Sample #3
Channel Measured 1 2 3 0
1 2 3 0 1 2 3 0

National Instruments USB-621 Series Specifications

General

Brand	National Instruments
Model	USB-621 Series
Category	Measuring Instruments
Language	English