We found this circuit in the 1990 Philips Databook. The circuit is a commercial application of the decoder in stereo FM radio receivers.
This circuit can be used in PLL, frequency synthesizer in FM and VHF receivers, reducing a...
Found in documentation from the 1990s, it uses a sound effects integrated circuit, the SN7677 from...
An oscillator whose frequency can be adjusted between 500 Hz and 5 kHz with the use of a...