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Contents
Chapter 2
Using the NI PXIe-4300
Connecting Signals ........................................................................................................... 2-1
Device Pinout ................................................................................................................... 2-2
NI PXIe-4300 Block Diagram.......................................................................................... 2-4
Signal Acquisition Considerations ................................................................................... 2-6
Input Ranges ............................................................................................................. 2-6
ADC.......................................................................................................................... 2-7
Analog Input Data Acquisition Methods.................................................................. 2-7
Analog Input Filter ................................................................................................... 2-8
Gain .......................................................................................................................... 2-8
Analog Input Timing Signals ................................................................................... 2-9
Aggregate versus Single Channel Sample Rates.............................................. 2-10
AI Sample Clock Signal ................................................................................... 2-11
AI Sample Clock Timebase Signal................................................................... 2-12
AI Start Trigger Signal ..................................................................................... 2-12
AI Reference Trigger Signal............................................................................. 2-14
AI Pause Trigger Signal ................................................................................... 2-15
Getting Started with AI Applications in Software.................................................... 2-16
External Reference Clock......................................................................................... 2-17
Synchronizing Multiple Devices .............................................................................. 2-18
Triggering ................................................................................................................. 2-19
Analog Triggering ............................................................................................ 2-19
Digital Input Triggering.................................................................................... 2-22
TB-4300/B/C Accessory................................................................................... 2-22
Accessory Auto-Detection................................................................................ 2-23
Isolation ............................................................................................................ 2-23