CS42L51-CNZR datasheet by Cirrus Logic

CS42L51-CNZR Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the CS42L51?
  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 analog performance of the CS42L51?
  To optimize analog performance, ensure that the analog power supply (VDDA) is well-filtered and decoupled, and that the analog ground (AGND) is connected to the digital ground (DGND) at a single point. Additionally, use a low-ESR capacitor for the analog bypass capacitor (C2).
• What is the maximum clock frequency supported by the CS42L51?
  The CS42L51 supports clock frequencies up to 50 MHz. However, the maximum clock frequency may vary depending on the specific application and system requirements.
• How do I configure the CS42L51 for master or slave mode?
  The CS42L51 can be configured for master or slave mode by setting the appropriate bits in the Control Register (CR). In master mode, the device generates the clock signal, while in slave mode, it receives the clock signal from an external source.
• What is the purpose of the digital filter in the CS42L51?
  The digital filter in the CS42L51 is used to reject out-of-band noise and improve the signal-to-noise ratio (SNR) of the analog-to-digital converter (ADC). The filter can be bypassed if not needed.