K2411 PDF Datasheet


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Description

This is Telephone Tone Ringer. FORWARD INTERNATIONAL ELECTRONICS LTD. SEMICONDUCTOR TECHNICAL DATA K2411 TELEPHONE TONE RINGER The 2411 is a bipolar integrated circuit designed for telephone tone ringer. Features * Designed for telephone bell replacement * Adjustable 2-tone frequency * Hysteresis circuit prevents false triggering and rotary dial “Chirps” * Adjustable for reduced supply initiation current Package: DIP-8 Pin No 1 2 3 4 5 6 7 8 Name VCC RSL LFI LFO GND HFO HFI OUT Function Power supply (+) Resistor select Low freq osc input Low freq osc output Ground (-) High freq osc output High freq osc input Signal output 1 2 3 4 8 7 6 5 ABSOLUTE MAXIMUM RATING Parameter DC Supply Voltage Power Dissipation Operating Temperature Storage Temperature Symbol Vcc Pd Topr Tstg Rating 36 450 -25~+75 -55~+125 Unit V mW J J ELECTRICAL CHARACTERISTICS VCC=24V,Ta=25 J(Unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit Operating Supply Voltage Vcc 36 V Initiation Supply Voltage (note 1) Vsi 1.