Texas Instruments provides a recommended PCB layout in the datasheet, but it's essential to follow good PCB design practices, such as using a solid ground plane, minimizing signal trace lengths, and avoiding vias under the device. Additionally, ensure that the analog and digital grounds are separated and connected at a single point.
The SCAN921821TSM/NOPB has high-speed digital outputs that require proper termination and signal integrity considerations. Use series termination resistors, and consider using differential signaling or low-voltage differential signaling (LVDS) to minimize electromagnetic interference (EMI) and ensure signal integrity.
The maximum clock frequency for the SCAN921821TSM/NOPB is 100 MHz, but it's essential to consider the specific application and signal integrity requirements. Higher clock frequencies may require additional signal conditioning and termination.
To minimize power consumption, configure the device to use the lowest possible clock frequency, disable unused features, and use the power-down mode when not in use. Additionally, consider using a low-dropout regulator (LDO) to supply the device with a clean and stable voltage.
The recommended operating temperature range for the SCAN921821TSM/NOPB is -40°C to 85°C. However, it's essential to consider the specific application and environmental conditions, as operating outside this range may affect device performance and reliability.
SCAN921821TSM/NOPB datasheet
by Texas Instruments
