KA2410 - Wing Shing Computer Components

KA2410 TELEPHONE TONE RINGERS

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 ! ! ! ! ! ! Low current drain Adjustable 2 tone frequency Hysteresis circuit prevents false triggering and rotary dial “CHIRPS” 8 pin DIP plasti.

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) 8-pin DIP APPLICATIONS ! ! ! 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. osc. Output Ground High freq. osc. Output Hig.