Based on a PLL 567, this circuit serves as a receiver for the CB9574E circuit. S tuning is done in R1 and it is used for frequency modulated signals.
This circuit can be used as a shield for microcontrollers. The relay is power compliant, and the...
This Texas Instruments integrated circuit, available from Mouser Electronics, has a 91 dB common...
We found this circuit in a Radio Electronics of the 90s. The integrated circuit used is not common...