PCM1861DBTR datasheet by Texas Instruments

PCM1861DBTR Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the PCM1861DBTR?
  The recommended power-up sequence is to apply VDD first, followed by AVDD, and then DVDD. This ensures that the internal voltage regulators are powered up correctly.
• How do I optimize the PCB layout for the PCM1861DBTR?
  To optimize the PCB layout, keep the analog and digital grounds separate, use a solid ground plane, and place the analog and digital components on opposite sides of the board. Also, keep the input and output traces short and away from noise sources.
• What is the maximum input voltage that the PCM1861DBTR can handle?
  The maximum input voltage that the PCM1861DBTR can handle is 2.1 Vrms. Exceeding this voltage may cause distortion or damage to the device.
• How do I configure the PCM1861DBTR for 24-bit or 32-bit audio?
  To configure the PCM1861DBTR for 24-bit or 32-bit audio, set the appropriate bits in the control register. For 24-bit audio, set bits [23:16] to 0, and for 32-bit audio, set bits [31:24] to 0. Refer to the datasheet for the specific register settings.
• What is the recommended clock frequency for the PCM1861DBTR?
  The recommended clock frequency for the PCM1861DBTR is 256 fs, where fs is the sampling frequency. This ensures that the device operates within its specified parameters.