**Part Number:**CD4046B

Hi,

Due to LM566 is obsolete, we want to check is there any possibility to replace LM566 with CD4046 VCO part.

The VCO part to be given with control voltage (12.37V at pin5), Resistor & Capacitor and receive output frequency of 155.8HZ. By the below mentioned formula (LM566)

In such case, https://www.ti.com/lit/an/scha002a/scha002a.pdf?ts=1686288375780&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FCD4046B this formula (page15) won’t be applicable.

So, can you provide CD4046 VCO part’s output frequency formula for this case because we have planned to use only the VCO part only.