We found this circuit in a documentation from the 90's. Information on the A/D converter was not given but types can be used according to the application.
This 80's circuit can be used in media recovery. The integrated circuit is of the time, but modern...
This circuit was obtained from a 1994 publication. Its purpose is to digitally switch 5 audio...
This circuit generates two signals in phase opposition. The frequency is determined by R1 and C1...