NI 5442
Block Diagram

This topic contains information about the NI PXIe-5442 top-level block diagram and descriptions of the individual blocks.

Legend

Note  If the device is installed in any slot other than system timing slot of the PXI Express chassis, the NI 5442 can can import clocks on the PXI_STAR line. However, PXI Express signal generators cannot import triggers or export clocks or triggers over the PXI_STAR line.

The following list describes the individual blocks:

• Onboard Memory stores the waveform data and generation instructions that you load into the device.
• Clocking allows you to create your Sample clock and Reference clock.
• The Waveform Generation Engine retrieves the waveform data and instructions from the Onboard Memory using the Sample clock. The Waveform Generation Engine also uses this clock to retrieve triggers from Trigger and Event Control.
• The output from the Waveform Generation Engine is sent to the DAC device after any digital gain or onboard signal processing is applied.
• The DAC also contains a selectable Digital Filter, which interpolates and filters the waveform data.
• The waveform data is sent from the DAC to the Analog Output path where the waveform data is filtered and amplified.
• The Routing Matrix allows flexible routing of the PXI Trigger lines and the external PFI lines.