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