Rens Electronics

NE571 Philips

The NE571 / SA571  /UPC1571C is a versatile low cost dual gain control circuit in which either channel may be used as a dynamic range compressor or expandor. Each channel has a full-wave rectifier to detect the average value of the signal, a linerarized temperature-compensated variable gain cell, and an operational amplifier. The NE571 / SA571  /UPC1571C are well suited for use in cellular radio and radio communications systems, modems, telephone, and satellite broadcast/receive audio systems