CS8427-CS - Cirrus Logic

CS8427-CS Frequently Asked Questions (FAQs)

• What is the recommended clock source for the CS8427-CS?
  The recommended clock source is a high-quality, low-jitter clock source, such as a crystal oscillator or a phase-locked loop (PLL) clock generator. A clock source with a jitter of less than 100 ps is recommended.
• How do I configure the CS8427-CS for Master Mode operation?
  To configure the CS8427-CS for Master Mode operation, set the M/S pin high, and ensure that the BCK pin is driven by the CS8427-CS. Additionally, configure the device for the desired audio format and clock rate using the SPI interface.
• What is the maximum cable length supported by the CS8427-CS?
  The maximum cable length supported by the CS8427-CS is approximately 10 meters (33 feet) for AES3 and 5 meters (16 feet) for I2S, assuming a high-quality, shielded cable with a characteristic impedance of 110 ohms.
• How do I handle clock domain crossing (CDC) when using the CS8427-CS?
  To handle clock domain crossing, use a clock domain crossing circuit or a FIFO buffer to synchronize the data and clock signals between the transmitter and receiver. Ensure that the clock domains are properly synchronized to prevent data corruption or loss.
• What is the power consumption of the CS8427-CS?
  The power consumption of the CS8427-CS varies depending on the operating mode and clock rate. Typically, the device consumes around 150 mW in Master Mode and 100 mW in Slave Mode, assuming a 3.3V supply voltage.