DESCRIPTION
THE KA2410/2411 IS A BIPOLAR INTEGRATED CIRCUIT DESIGNED FOR TELEPHONE TONE RINGER.THESE DEVICES CONSISTS OF AN OUTPUT AMPLIFIER, TWO OSCILLATORS, AND POWER SUPPLY CONTROL CIRCUIT.

FEATURES
✦ Low current drain
✦ Adjustable 2 tone frequency
✦ Hysteresis circuit prevents false triggering and rotary dial “CHIRPS”
✦ 8 pin DIP plastic package
✦ External triggering or ringer disables (KA2410)
✦ Adjustable for reduced supply initiation current (KA2411)

APPLICATIONS
✦ Telephone bell replacement
✦ Extension tone ringer modules
✦ Alarms or other alerting devices