DSD1791DBR datasheet by Texas Instruments

DSD1791DBR Frequently Asked Questions (FAQs)

• What is the recommended layout and routing for the DSD1791DBR?
  Texas Instruments provides a recommended layout and routing guide in their application note SLAA523, which includes guidelines for PCB layout, component placement, and routing to minimize noise and ensure optimal performance.
• How do I handle the high-frequency noise generated by the DSD1791DBR?
  To minimize high-frequency noise, it is recommended to use a low-pass filter, such as a ferrite bead or a pi-filter, on the power supply lines. Additionally, ensure that the PCB layout is designed to minimize loop areas and keep sensitive analog signals away from the digital signals.
• What is the maximum clock frequency that can be used with the DSD1791DBR?
  The maximum clock frequency for the DSD1791DBR is 50 MHz, as specified in the datasheet. However, it is recommended to use a clock frequency of 40 MHz or lower to ensure reliable operation and minimize jitter.
• How do I program the DSD1791DBR's internal registers?
  The DSD1791DBR's internal registers can be programmed using the SPI interface. Texas Instruments provides a register programming guide in their datasheet, which includes a detailed description of each register and its associated bits.
• What is the power-on reset (POR) timing for the DSD1791DBR?
  The POR timing for the DSD1791DBR is typically around 10 ms, during which the device is held in a reset state. After the POR timing, the device is released from reset and begins normal operation.