Onboard Signal Processing (5142):DDC:DDC Enabled
Short Name: DDC Enabled
Enables/disables the digital downconverter (DDC) block of the digitizer. When the DDC block is disabled, all DDC-related properties are disabled and have no effect on the acquired signal.
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Note This property can be used only with high-speed digitizers that support onboard signal processing (OSP). NI-SCOPE returns an error if you use this property with a device that does not support OSP. For NI 5620/5621 digitizers, use Enable DDC. |
Default Value: FALSE
Defined Values
TRUE
FALSE
Remarks
The following table lists the characteristics of this property.
| Data Type | ViBoolean |
| Access | R/W |
| Channel Based | Yes |
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Tip To achieve maximum flatness in the filter response of the device in DDC mode, set the maximum input frequency to full bandwidth (–1). However, keep in mind that this action does not protect against aliasing frequency content of the input signal above (0.5 × Sample Clock Timebase Rate). When using internal clocking, the Sample Clock Timbase Rate is 100 MS/s. |