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
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