CD4099BPWR datasheet by Texas Instruments

CD4099BPWR Frequently Asked Questions (FAQs)

• What is the maximum operating frequency of the CD4099BPWR?
  The CD4099BPWR can operate up to 10 MHz, but it's recommended to use it within the 1-5 MHz range for optimal performance and to minimize power consumption.
• How do I ensure proper power sequencing when using the CD4099BPWR?
  To ensure proper power sequencing, apply VCC before applying any input signals, and ensure that VCC is stable before applying any input signals. Also, ensure that the input signals are within the specified voltage range.
• What is the recommended layout and routing for the CD4099BPWR to minimize noise and EMI?
  To minimize noise and EMI, use a solid ground plane, keep the input and output traces short and away from each other, and use a decoupling capacitor (e.g., 0.1 μF) between VCC and GND. Also, avoid running digital signals near the analog inputs.
• Can I use the CD4099BPWR in a 3.3V system?
  Yes, the CD4099BPWR can operate from a 3.3V supply, but the output voltage swing will be reduced. Ensure that the output voltage is within the specified range of the downstream devices.
• How do I handle the CD4099BPWR's input hysteresis?
  The CD4099BPWR has a built-in hysteresis of around 0.5V to 1V. To handle this, ensure that the input signals have a sufficient voltage swing (at least 1V) to overcome the hysteresis and prevent oscillations.