Tyler,
While we do not have any explicit code examples for this device that would work on Arduino, we do have a generic C header file that translates the SPI register address, names, and bitfield definitions:
https://www.ti.com/tool/download/TPS274C65…
David,
The maximum baud rate for the device is 10Mhz. Generally, you just max out your baud rate of these devices to get the fastest speed possible as allowed by your microcontroller.
You can find an "application complete" version EVM here: …