The recommended power-up sequence is to apply VCC first, followed by VCCA, and then the clock input. This ensures proper device operation and prevents potential latch-up conditions.
When using the CDC318ADLRG4 in a system with multiple clock domains, it's essential to ensure that the clock input is properly synchronized and buffered to prevent clock domain crossing issues. Use a clock buffer or a clock domain crossing circuit to synchronize the clock signal before applying it to the CDC318ADLRG4.
The maximum frequency of operation for the CDC318ADLRG4 is 100 MHz. However, the actual operating frequency may be limited by the system's clock distribution, signal integrity, and other factors. It's essential to verify the device's performance at the desired frequency through simulation and testing.
When implementing the CDC318ADLRG4 in a system with a high-speed interface, it's crucial to ensure that the device is properly terminated and matched to the transmission line. Use a termination resistor and a transmission line with a characteristic impedance of 50 ohms or 100 ohms, depending on the interface requirements.
To minimize signal integrity issues, it's recommended to follow a differential pair routing scheme, keeping the clock and data signals as close as possible to each other. Use a solid ground plane, and avoid routing signals under the device's BGA package. Also, ensure that the power and ground pins are properly decoupled and bypassed.
CDC318ADLRG4 datasheet
by Texas Instruments
