Hey Alvin,
For DRV8305 we don't have any type of sample-and-hold on the CSA output. During the blanking time we're ignoring the voltage measurement on the CSA inputs, so the SO pin should be equivalent to whatever the output bias is set to for this specific device variant.
For DRV8305 we don't have any type of sample-and-hold on the CSA output. During the blanking time we're ignoring the voltage measurement on the CSA inputs, so the SO pin should be equivalent to whatever the output bias is set to for this specific device variant.