Here's some information about the CD4046:

Functionality: The CD4046 is a PLL circuit that consists of a phase detector, a voltage-controlled oscillator (VCO), and a low-pass filter. It is commonly used for generating stable clock signals and for frequency synthesis.

DIP-16 Package: The "DIP-16" designation indicates that the IC is packaged in a Dual Inline Package with 16 pins.

Pin Configuration: The CD4046 typically has 16 pins, including power supply pins (VDD and VSS), input pins for reference and feedback signals, output pins for the VCO, and control pins for configuring the PLL.

PLL Operation: In a PLL, the CD4046 can be used to generate an output frequency that is a multiple or division of the input reference frequency. The phase detector compares the phase of the reference and feedback signals, and the VCO adjusts its frequency to minimize the phase difference.