LTC6991HDCB#TRMPBF - Analog Devices

LTC6991HDCB#TRMPBF Frequently Asked Questions (FAQs)

• What is the maximum frequency of the LTC6991HDCB?
  The maximum frequency of the LTC6991HDCB is 17MHz, but it can be extended up to 20MHz with proper PCB layout and component selection.
• How do I ensure the LTC6991HDCB oscillator starts reliably?
  To ensure the oscillator starts reliably, make sure to decouple the power supply pins (VCC and GND) with a 10uF capacitor, and use a 1kΩ to 10kΩ resistor in series with the oscillator input (OSCIN) to prevent overdrive.
• What is the recommended layout for the LTC6991HDCB oscillator circuit?
  For optimal performance, keep the oscillator circuit as compact as possible, and use a symmetrical layout with the oscillator input (OSCIN) and output (OSCOUT) pins on opposite sides of the IC. Avoid routing digital signals near the oscillator circuit.
• How do I synchronize the LTC6991HDCB with an external clock source?
  To synchronize the LTC6991HDCB with an external clock source, connect the external clock signal to the OSCIN pin, and set the SYNC pin high to enable synchronization. The internal oscillator will then lock onto the external clock frequency.
• What is the maximum output current of the LTC6991HDCB?
  The maximum output current of the LTC6991HDCB is 10mA, but it's recommended to limit the output current to 5mA or less to ensure reliable operation and minimize power consumption.