PCM1793DBR datasheet by Texas Instruments

PCM1793DBR Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the PCM1793DBR?
  The recommended power-up sequence is to apply VCC first, followed by AVCC, and then DVCC. This ensures that the analog and digital circuits are powered up in the correct order.
• How do I optimize the PCB layout for the PCM1793DBR?
  To optimize the PCB layout, keep the analog and digital grounds separate, use a solid ground plane, and keep the analog and digital signal traces separate. Also, place the decoupling capacitors close to the device pins.
• What is the maximum clock frequency that the PCM1793DBR can support?
  The PCM1793DBR can support clock frequencies up to 256 fs (where fs is the sampling frequency). However, the maximum clock frequency may be limited by the specific application and system requirements.
• How do I handle the digital filter coefficients for the PCM1793DBR?
  The digital filter coefficients are stored in the device's internal memory. The coefficients can be programmed using the SPI interface, and the device provides a default set of coefficients that can be used as a starting point.
• What is the recommended operating temperature range for the PCM1793DBR?
  The recommended operating temperature range for the PCM1793DBR is -40°C to 85°C. However, the device can operate at temperatures up to 125°C with reduced performance and reliability.