PCM5242RHBT datasheet by Texas Instruments

PCM5242RHBT Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the PCM5242RHBT?
  The recommended power-up sequence is to apply VDD first, followed by VDDA, and then the clock signal. This ensures proper initialization of the device.
• How do I optimize the PCB layout for the PCM5242RHBT?
  To minimize noise and ensure proper operation, it is recommended to keep the analog and digital grounds separate, use a solid ground plane, and keep the clock signal traces short and shielded.
• What is the maximum clock frequency supported by the PCM5242RHBT?
  The maximum clock frequency supported by the PCM5242RHBT is 192 kHz. However, it is recommended to use a clock frequency of 128 kHz or lower for optimal performance.
• How do I configure the PCM5242RHBT for master mode operation?
  To configure the PCM5242RHBT for master mode operation, set the M/S pin high, and ensure that the BCK pin is connected to the clock signal. Additionally, configure the device for the desired data format and sampling rate.
• What is the recommended termination for the PCM5242RHBT's digital outputs?
  The recommended termination for the PCM5242RHBT's digital outputs is a 50-ohm resistor in series with a 50-pF capacitor to ground. This ensures proper signal integrity and minimizes reflections.