DS1390U-33 datasheet by Maxim Integrated Products

DS1390U-33 Frequently Asked Questions (FAQs)

• What is the recommended layout and routing for the DS1390U-33?
  The recommended layout and routing for the DS1390U-33 involves keeping the input and output traces as short as possible, using a solid ground plane, and avoiding vias under the device. Additionally, the input and output capacitors should be placed as close to the device as possible.
• How do I ensure the DS1390U-33 is properly powered?
  To ensure the DS1390U-33 is properly powered, connect the VCC pin to a stable 3.3V power supply, and decouple the power supply with a 0.1uF capacitor. Also, ensure the power supply can provide enough current to support the device's operating current.
• What is the maximum clock frequency supported by the DS1390U-33?
  The DS1390U-33 supports clock frequencies up to 33MHz. However, the actual maximum frequency may vary depending on the specific application and layout.
• How do I handle the output of the DS1390U-33?
  The output of the DS1390U-33 is an open-drain output, which means it can only sink current. To use the output, connect a pull-up resistor to a voltage source, and ensure the resistor value is chosen to limit the current to a safe value.
• What is the purpose of the EN pin on the DS1390U-33?
  The EN (Enable) pin on the DS1390U-33 is used to enable or disable the device. When the EN pin is low, the device is in shutdown mode, and when it is high, the device is enabled.