Analog Input:General Properties:Filter:Analog Lowpass:Advanced:Switched Capacitor:External Clock Frequency Property

Short Name: AI.Lowpass.SwitchCap.ExtClkFreq

Property of DAQmx Channel

Specifies the frequency of the external clock when you set AI.Lowpass.SwitchCap.ClkSrc to External. NI-DAQmx uses this frequency to set the pre- and post- filters on the SCXI-1141, SCXI-1142, and SCXI-1143. On those devices, NI-DAQmx determines the filter cutoff by using the equation f/(100*n), where f is the external frequency, and n is the external clock divisor. Refer to the SCXI-1141/1142/1143 User Manual for more information.

Remarks

The following table lists the characteristics of this property.

Permissions	read/write
Resettable	yes
Settable while task is running	device-specific
Available in Run-Time Engine	yes