Texas Instruments provides a recommended PCB layout in the datasheet, but it's essential to follow good layout practices, such as keeping the input and output traces short, using a solid ground plane, and minimizing noise coupling. Additionally, consider using a 4-layer PCB with a dedicated power plane and a dedicated ground plane.
To ensure reliable operation over the entire operating temperature range (-40°C to 125°C), it's crucial to follow proper thermal management practices, such as providing adequate heat sinking, using thermal vias, and selecting components with suitable temperature ratings. Additionally, consider using a thermally conductive material for the PCB substrate.
The internal oscillator has a typical accuracy of ±1.5% over the operating temperature range. To improve its accuracy, consider using an external crystal oscillator or a more accurate clock source. Additionally, ensure that the oscillator pins are properly decoupled and that the PCB layout minimizes noise coupling.
The SN10501DR has a built-in POR and BOR feature. To handle these features, ensure that the power supply is stable and within the recommended operating range. Use a suitable power-on reset circuit to ensure a clean power-up sequence. Additionally, consider using a voltage supervisor or a reset IC to provide a more robust reset function.
To ensure EMI and EMC compliance, follow good design practices, such as using a shielded enclosure, minimizing loop areas, and using EMI filters or common-mode chokes. Additionally, consider using a spread-spectrum clock generator to reduce EMI emissions. Ensure that the PCB layout and component selection meet the relevant EMI and EMC standards.
SN10501DR datasheet
by Texas Instruments
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