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Chapter 1 Generating Functions with the NI 5401
NI 5401 User Manual 1-16 www.natinst.com
Power-Up and Reset Conditions
When you power up your computer, the NI 5401 is in the following state:
• The output is disabled and set to 0 V.
• The trigger mode is set to continuous.
• The trigger source is set to automatic (the software provides the
triggers).
• The digital filter is enabled.
• Output attenuation remains unchanged from its previous setting.
• The analog filter remains unchanged from its previous setting.
• Output impedance remains unchanged from its previous setting.
When you reset the board using NI-FGEN or any other application
software, your NI 5401 is in the same state as shown at power up,
previously listed, with the following differences:
• Output attenuation is set to 0 dB.
• The analog filter is enabled.
• Output impedance is set to 50 Ω.
• The PLL reference source is set to internal tuning.
• The SYNC duty cycle is set to 50%.