NE564D datasheet by Philips Semiconductors

NE564D Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for the NE564D?
  The recommended operating voltage range for the NE564D is 9V to 12V, although it can operate up to 15V with reduced performance.
• How do I ensure the NE564D is stable and doesn't oscillate?
  To ensure stability, make sure to decouple the power supply with a 10uF capacitor, use a low-ESR capacitor for the compensation pin (pin 8), and keep the layout symmetrical and compact.
• What is the maximum input signal amplitude that the NE564D can handle?
  The maximum input signal amplitude that the NE564D can handle is approximately 2Vpp, beyond which the device may saturate or become unstable.
• Can I use the NE564D as a voltage-controlled oscillator (VCO)?
  Yes, the NE564D can be used as a VCO by applying a control voltage to the Vc pin (pin 5). However, the frequency range and linearity may not be as good as a dedicated VCO IC.
• How do I choose the correct values for the external components (R1, R2, C1, C2)?
  The values of R1, R2, C1, and C2 depend on the desired frequency range, gain, and stability. A good starting point is to use the values suggested in the datasheet, and then adjust them based on simulation and experimentation.