The recommended power-up sequence is to apply VCC first, followed by VDD, and then the input clock signal. This ensures proper initialization and prevents potential latch-up conditions.
To ensure a stable state during power-up, it's recommended to add a power-on reset (POR) circuit to the VCC pin. This helps to reset the device and ensure a stable state during power-up.
The CDCV855IPW supports clock frequencies up to 250 MHz. However, the actual frequency limit may vary depending on the specific application, PCB layout, and signal integrity.
To optimize the CDCV855IPW for low-power operation, use the lowest possible clock frequency, disable unused features, and use the power-down mode when not in use. Additionally, consider using a lower voltage supply (e.g., 1.8V) and optimizing the PCB design for minimal power consumption.
For optimal performance, it's recommended to follow a star-configuration layout, with the CDCV855IPW at the center. Keep clock signals short and away from noisy signals, and use a solid ground plane to minimize noise and EMI.
CDCV855IPW datasheet
by Texas Instruments
