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KA2410/KA2411
DESCRIPTION
TELEPHONE TONE RINGERS
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
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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)
8-pin DIP
APPLICATIONS
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Telephone bell replacement Extension tone ringer modules Alarms or other alerting devices
PIN ASSIGNMENT
PIN
1 2 3 4 5 6 7 8
PIN CONFIGURATION
FUNCTION
(TOP VIEW)
NAME
VCC RSL LFI LFO GND HFO HFI OUT
Power Supply Resistor Select Low freq. osc. Input Low freq.
KA2411 Datasheet
