The recommended power-up sequence is to apply VCC before applying VREF. This ensures that the internal voltage regulator is powered up correctly.
To ensure a stable state during power-up, it is recommended to add a power-on reset (POR) circuit to the VCC pin. This ensures that the device is reset properly during power-up.
The CDC328ADBR can support clock frequencies up to 100 MHz. However, the actual clock frequency supported may be limited by the specific application and PCB design.
To optimize the CDC328ADBR for low power consumption, it is recommended to use the lowest possible clock frequency, disable unused features, and use the power-down mode when the device is not in use.
The recommended layout and routing for the CDC328ADBR involves keeping the analog and digital signals separate, using a solid ground plane, and minimizing the length of the clock signal traces.