LTC1043CSW datasheet by Linear Technology

LTC1043CSW Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that can be used with the LTC1043CSW?
  The maximum clock frequency is 1MHz, but it's recommended to use a clock frequency between 100kHz to 500kHz for optimal performance.
• How do I ensure that the LTC1043CSW is properly powered up and initialized?
  The LTC1043CSW requires a power-on reset (POR) to ensure proper initialization. A 10uF capacitor between VCC and GND, and a 1kΩ resistor between VCC and the POR pin can be used to implement a POR circuit.
• What is the purpose of the NOISE pin, and how should it be connected?
  The NOISE pin is used to reduce noise and improve the converter's performance. It should be connected to a quiet analog ground or a 0.1uF capacitor to analog ground.
• How do I optimize the layout and routing for the LTC1043CSW to minimize noise and ensure accurate conversions?
  Keep the analog and digital grounds separate, use a star-ground configuration, and keep the signal traces short and away from noise sources. Also, use a ground plane to reduce noise and improve shielding.
• What is the recommended output filter configuration for the LTC1043CSW?
  A 2nd-order low-pass filter with a 1kΩ resistor, 2.2uF capacitor, and 1kΩ resistor can be used to filter the output. The filter values may need to be adjusted based on the specific application requirements.