Is designing a PCB for the A4989 driver as simple as the application diagram seems to suggest?

Question

Datasheet

It looks like it just needs an MCU for logic supply, step and direction plus another higher voltage supply; that, along with eight external FETs. Is there a more detailed guide somewhere on how to design a circuit for the A4989?

I happened to find this PCB that goes with the A4989. There is a lot more on there than eight drivers, two signals and two supplies. Also, the typical application diagram in the A4989's datasheet didn't have any capacitors (which concerns me).

Ideally, I would prefer to just find a nearly all-in-one chip module like how DVR8825 dev board's size. But it seems anything around 4 A max has a large form factor (e.g., DVR6575). That is why I'm looking into designing something that uses the A4989.

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Related question

Designing stepper motor driver with A4989 chip to control NEMA 17 / NEMA 23 motor

Answer 1

No, it isn't that simple - that is just a block diagram.

For more details, see the A4989 Demo Board schematic and PCB layout.