ECG1649 Telephone Tone Ringer IC ~ 8 Pin DIP (NTE1649)

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ECG1649 Telephone Tone Ringer IC ~ 8 Pin DIP The ECG1649 is a bipolar integrated circuit in an 8–Lead DIP type package designedfor telephone bell replacement. Functions: Two Oscill ators Output Amplifier Power Supply Control Circuit Features: Designed for Telephone Bell Replacement Low Current Drain Small Size 8–Lead MINIDIP Package Adjustable 2–Frequency Tone Adjustable Warbling Rate Built–in Hysteresis Prevents False Triggering and Rotary Dial “CHIRPS” Extension Tone Ringer Modules Alarms or Other Altering Devices Adjustable for Reduced Supply Initiation Current Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Supply Voltage, VCC: 30V Power Dissipation, PD: 400mW Operating Temperature Range, Topr: –45° to +65°C Storage Temperature Range, Tstg –65° to +150°C Show more