DS1374U-33+T&R - Analog Devices

DS1374U-33+T&R Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the DS1374U-33+T&R?
  The recommended power-up sequence is to apply VCC first, followed by VBAT. This ensures that the internal registers are properly initialized.
• How do I ensure that the DS1374U-33+T&R oscillator starts reliably?
  To ensure reliable oscillator startup, make sure that the X1 and X2 pins are properly terminated with a 10kΩ resistor and a 10pF capacitor, and that the oscillator is driven with a stable clock signal.
• What is the maximum capacitance allowed on the VBAT pin?
  The maximum capacitance allowed on the VBAT pin is 10μF. Exceeding this value may affect the device's ability to properly switch between battery and VCC power sources.
• How do I handle the case where the battery is completely drained?
  In the event of a completely drained battery, the DS1374U-33+T&R will reset its internal registers. To recover from this state, reapply VCC and reinitialize the device.
• What is the purpose of the RST pin, and how should it be used?
  The RST pin is an active-low reset input that can be used to reset the device. It should be tied to VCC through a 1kΩ resistor and a 0.1μF capacitor to ensure proper reset operation.