CD74HC4046AM96G4 datasheet by Texas Instruments

CD74HC4046AM96G4 Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for the CD74HC4046AM96G4?
  The recommended operating voltage range for the CD74HC4046AM96G4 is 2V to 6V, with a typical voltage of 5V.
• How do I ensure the PLL (Phase-Locked Loop) is properly locked in the CD74HC4046AM96G4?
  To ensure the PLL is properly locked, the VCO (Voltage-Controlled Oscillator) input voltage should be within the specified range, and the loop filter components should be selected according to the datasheet recommendations. Additionally, the PLL lock detect output (LD) can be used to monitor the lock status.
• What is the maximum clock frequency that the CD74HC4046AM96G4 can handle?
  The maximum clock frequency that the CD74HC4046AM96G4 can handle is 20 MHz, but this may vary depending on the specific application and operating conditions.
• How do I choose the correct values for the loop filter components (R1, R2, C1, C2) in the CD74HC4046AM96G4?
  The loop filter component values can be calculated using the equations provided in the datasheet, or by using online calculators and simulation tools. The values should be chosen to ensure the PLL loop bandwidth is within the recommended range (typically 1 kHz to 10 kHz).
• What is the purpose of the VCO input voltage (VIN) in the CD74HC4046AM96G4?
  The VCO input voltage (VIN) is used to control the frequency of the VCO output. The VIN voltage determines the center frequency of the PLL, and should be adjusted to achieve the desired output frequency.