PCM4202DB datasheet by Texas Instruments

PCM4202DB Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the PCM4202DB?
  The recommended power-up sequence is to apply VCC first, followed by AVCC, and then DVCC. This ensures that the internal voltage regulators are powered up correctly.
• How do I configure the PCM4202DB for master clock mode?
  To configure the PCM4202DB for master clock mode, set the MCKO pin to a logic high and connect a clock source to the MCKI pin. The device will then generate a clock signal on the MCKO pin.
• What is the maximum input signal level for the analog-to-digital converters (ADCs)?
  The maximum input signal level for the ADCs is 2.5 Vpp differential. Exceeding this level may result in distortion and reduced accuracy.
• How do I optimize the performance of the PCM4202DB in noisy environments?
  To optimize performance in noisy environments, use a low-pass filter on the analog input signals, and consider using a shielded cable or a twisted pair for the digital output signals. Additionally, ensure good power supply decoupling and use a low-noise power supply.
• What is the latency of the PCM4202DB?
  The latency of the PCM4202DB is approximately 1.5 clock cycles, which corresponds to 12.5 ns at a clock frequency of 192 kHz.