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31002A Datasheet(PDF) 1 Page - Unisonic Technologies |
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31002A Datasheet(HTML) 1 Page - Unisonic Technologies |
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1 / 4 page  UTC31002A LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R108-005,A TELEPHONE TONE RINGER DESCRIPTION The UTC 31002A is a bipolar integrated circuit designed for telephone bell replacement. It can also be used as alarms or other alerting devices. FEATURES *Designed for telephone bell replacement. *Low current drain for multiple extension of lines. *Adjustable 2-frequency tone. *Adjustable warbling rate. *Built-in hysteresis prevents false triggering and rotary dial 'CHIRPS'. *Programmable for initiation current by simple external resistor DIP-8 SOP-8 PIN CONFIGURATIONS 1 2 3 4 8 7 6 5 Vcc RSL Low Freq. Time Constant Low Freq. Time Costant Output High Freq. Time Constant High Freq. Time Constant GND ABSOLUTE MAXIMUM RATINGS(Ta=25°C ) PARAMETER SYMBOL VALUE UNIT Supply Voltage Vcc 30 V Power Dissipation Pd 400 mW Operating Temperature Topr -45 to 85 °C Storage Temperature Tstg -65 to 150 °C |
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