CS4270-DZZ datasheet by Cirrus Logic

CS4270-DZZ Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the CS4270-DZZ?
  The recommended power-up sequence is to apply analog power (AVDD) first, followed by digital power (DVDD), and then bring the reset pin (RST) high.
• How do I configure the CS4270-DZZ for master clock mode?
  To configure the CS4270-DZZ for master clock mode, set the MCLK pin as the clock source, and set the MCLKDIV pin to the desired clock frequency. Also, ensure that the BCLK pin is not driven.
• What is the maximum allowed capacitance for the analog input coupling capacitors?
  The maximum allowed capacitance for the analog input coupling capacitors is 10uF. Exceeding this value may affect the device's performance.
• How do I optimize the CS4270-DZZ for low power consumption?
  To optimize the CS4270-DZZ for low power consumption, use the power-down modes (PDWN or PDWN_ALL), reduce the clock frequency, and minimize the analog input signal amplitude.
• What is the recommended layout and routing for the CS4270-DZZ?
  The recommended layout and routing for the CS4270-DZZ involves separating analog and digital signals, using a solid ground plane, and minimizing signal trace lengths and loops.