Not exactly...
The CDA (Constant Descent Approach) is the result of technology...the ability to select a prescribed descent angle. It is a huge advantage for pilots when executing non-precision approaches....especially in large aircraft.
Some authorities allow the CDA to the MDA, without allowing for inertia; some do not. FAA is a case of an authority who does not. My old company required adding 50 feet to the MDA to allow for a go-around without busting the MDA. Other agencies, other airlines may have different SOPs.
411A....you can hand-fly this type of approach, or you can couple it. My old company's SOP required the autopilot....but that was our SOP. But, I ask you, what's the difference of flying a rate-of-descent or descent angle?
Fly safe,
PantLoad