PCM1702U-J Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the PCM1702U-J?
  The recommended power-up sequence is to apply VCC first, followed by VREF, and then the digital signals (SCLK, SDIN, and SYNC). This ensures proper initialization and prevents damage to the device.
• How do I optimize the analog output filter for the PCM1702U-J?
  The analog output filter should be designed to have a cutoff frequency of around 100 kHz to 200 kHz to remove high-frequency noise and ensure a smooth output signal. A simple RC filter or a more complex active filter can be used, depending on the specific application requirements.
• What is the maximum allowed capacitance on the VREF pin?
  The maximum allowed capacitance on the VREF pin is 10 nF. Exceeding this value can cause instability and affect the performance of the device.
• Can I use the PCM1702U-J with a different voltage reference?
  Yes, the PCM1702U-J can be used with a different voltage reference, but it must be within the specified range of 2.5 V to 5.5 V. The voltage reference should also be stable and have low noise to ensure accurate conversion.
• How do I handle clock jitter and skew in the PCM1702U-J?
  Clock jitter and skew can be minimized by using a high-quality clock source, such as a crystal oscillator, and ensuring that the clock signal is properly terminated and routed. Additionally, the PCM1702U-J has a built-in clock jitter attenuator that can help reduce the effects of clock jitter.