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UTCTA31001 Datasheet(PDF) 1 Page - Unisonic Technologies |
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UTCTA31001 Datasheet(HTML) 1 Page - Unisonic Technologies |
1 / 3 page UTC TA31001 LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO. LTD 1 QW-R108-003,A TELEPHONE TONE RINGER DESCRIPTION The UTC TA31001 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 voltage by simple external resistor. DIP-8 BLOCK DIAGRAM LOW OSC HIGH OSC AMP POWER SUPPLY (WITH HYSTERESIS) 8 6 7 4 3 1 5 2 OUTPUT R3 R2 C3 C2 Note:R2,R3,C2 and C3 are parts externally mounted |
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