Synchronizing NI 446X and NI 447X Devices

The following constraints apply when synchronizing NI 446X and NI 447X devices:

• For PXI devices, the master device must be an NI 446X, and that device must be in slot 2.
• Only the sample clock timebase synchronization method can be used.
• When using different sampling rates on the devices, the sampling rates on all devices must be greater than 25.6 kS/s.
• When using different sampling rates on the devices, the ratio between the sampling rates must be a power of two.
• You must disable enhanced alias rejection on all devices.
• You must account for filter delay differences between the devices.

When programming, the implementation of synchronizing NI 446X devices and NI 447X devices is the same as the homogeneous sample clock timebase synchronization case. Refer to Signals for Synchronizing DSA Devices.