LB1004AC

Full Feature Tone Ringer and Ringing Detector integrated circuit - Selectable Frequencies: It offers four switch-selectable output tone frequencies: 750, 900, 940, and 1200 Hz.Modulation Rates: Users can independently select modulation rates of 7.5, 10, 15, and 20 Hz.Modulation Types: It supports both amplitude and frequency modulation.Logic Compatibility: The device features TTL/CMOS logic-selectable controls, allowing it to provide distinctive ringing patterns for specialized environments like multi-phone offices.Package Type: Typically found in a 16-pin Dual In-line Package (DIP)