PCM1798DB datasheet by Texas Instruments

PCM1798DB Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the PCM1798DB?
  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 PCM1798DB?
  To minimize noise and ensure optimal performance, it is recommended to keep the analog and digital grounds separate, use a solid ground plane, and keep the signal traces short and away from noise sources.
• What is the maximum clock frequency supported by the PCM1798DB?
  The PCM1798DB supports clock frequencies up to 256 fs, but the maximum frequency may vary depending on the specific application and system requirements.
• How do I configure the PCM1798DB for different audio formats?
  The PCM1798DB can be configured for different audio formats such as I2S, DSP, and Right-Justified using the appropriate pin configurations and register settings.
• What is the recommended decoupling capacitor configuration for the PCM1798DB?
  It is recommended to use a 10uF capacitor in parallel with a 0.1uF capacitor for each power pin to ensure proper decoupling and noise reduction.