CDCL1810ARGZR datasheet by Texas Instruments

CDCL1810ARGZR Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance of the CDCL1810ARGZR?
  Texas Instruments recommends a layout with a solid ground plane, short and direct connections to the power supply, and a decoupling capacitor (e.g., 0.1 μF) close to the device. Additionally, keep the clock input traces short and away from noisy signals.
• How do I ensure the CDCL1810ARGZR is properly powered and bypassed?
  Connect the VCC pin to a 1.8 V power supply, and use a 0.1 μF decoupling capacitor between VCC and GND, placed as close to the device as possible. Also, ensure the power supply can provide sufficient current to drive the output loads.
• What is the maximum clock frequency that the CDCL1810ARGZR can handle?
  The CDCL1810ARGZR can handle clock frequencies up to 200 MHz, but the maximum frequency may vary depending on the specific application, output load, and PCB layout. Consult the datasheet and application notes for more information.
• How do I configure the CDCL1810ARGZR for a specific output frequency?
  The CDCL1810ARGZR is a programmable clock generator. Use the SEL0 and SEL1 pins to select the desired output frequency from the available options (e.g., 25 MHz, 50 MHz, 100 MHz, etc.). Consult the datasheet for the specific pin configurations and frequency options.
• What is the output impedance of the CDCL1810ARGZR, and how does it affect the signal integrity?
  The output impedance of the CDCL1810ARGZR is typically around 20 Ω. This relatively low impedance helps to maintain signal integrity and reduce signal reflections. However, it's still important to consider the output load and PCB layout to ensure signal quality.