CS8900A-IQ datasheet by Cirrus Logic

CS8900A-IQ Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the CS8900A-IQ?
  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 performance of the CS8900A-IQ in my design?
  Optimize the performance by ensuring proper PCB layout, using a low-jitter clock source, and following the recommended power supply decoupling and filtering guidelines.
• What is the maximum clock frequency supported by the CS8900A-IQ?
  The maximum clock frequency supported is 100 MHz, but it's recommended to operate at 50 MHz or lower for optimal performance and to minimize power consumption.
• Can I use the CS8900A-IQ in a multi-master SPI configuration?
  Yes, the CS8900A-IQ supports multi-master SPI configuration, but it requires careful consideration of the slave select signals and clock domain crossing to avoid data corruption.
• How do I handle the CS8900A-IQ's power-down mode?
  To enter power-down mode, assert the PDWN pin low. Ensure that all inputs are in a stable state and all outputs are in a high-impedance state before entering power-down mode.