Found in 1980s Electronics Design, this circuit covers 4 decades of frequencies with a unique control. A multi-turn trimpot is used for fine adjustment. The frequency range depends on C1.
Although it is a common configuration today, this circuit was taken from an old publication. The...
The CMOS 4046 integrated circuit is not very common today, consisting of a very efficient PLL for...
This 16-bit circuit was found in a 2005 Linear Technology application manual. The circuit uses...