ECG1649 Telephone Tone Ringer IC ~ 8 Pin DIP

The ECG1649 is abipolar integrated circuit in an 8Lead DIP type package designed
for telephone bell replacement.

Functions:

• Two Oscillators
• Output Amplifier
• Power Supply Control Circuit

Features:

• Designed for Telephone Bell Replacement
• Low Current Drain
• Small Size 8Lead MINIDIP Package
• Adjustable 2Frequency Tone
• Adjustable Warbling Rate
• Builtin 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 = +25C unless otherwise specified)

• Supply Voltage, VCC: 30V
• Power Dissipation, PD: 400mW
• Operating Temperature Range, Topr: 45 to +65C
• Storage Temperature Range, Tstg 65 to +150C