TA31002

UNISONIC TECHNOLOGIES CO., LTD TA31002 LINEAR INTEGRATED CIRCUIT TELEPHONE TONE RINGER DESCRIPTION The UTC TA31002 is a bipolar integrated circuit designed for telephone bell replacement. It can also be used as alarms or other alerting devices. FEATURES *Current consumption is small. (at no-load) *Package is compaction. (DIP-8 pin) *Oscillation frequency is variable. *Built-in threshold circuits prevent false triggering due to power noise as well as “chirps” due to rotary dial. *Few external components. DIP-8 *Pb-free plating product number: TA31002L ORDERING INFORMATION Ordering Number Normal Lead Free Plating TA31002-D08-T TA31002L-D08-T Package DIP-8 Packing Tube TA31002L-D08-T (1)Packing Type (2)Package Type (3)Lead Plating (1) T: Tube (2) D08: DIP-8 (3) Lead Free Plating, Blank: Pb/Sn www.unisonic.com.tw Copyright © 2005 Unisonic Technologies Co., Ltd 1 of 4 QW-R108-004.B TA31002 PIN CONFIGURATIONS Vcc 1 RSL 2 Low Freq. Time Constant 3 Low Freq. 4 Time Costant LINEAR INTEGRATED CIRCUIT 8 Output 7 High Freq. Time Constant 6 High Freq. Time Constant 5 GND UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 6 QW-R108-004.B TA31002 BLOCK DIAGRAM R1 LINEAR INTEGRATED CIRCUIT C2 R2 47 6 3 LOW OSC C1 HIGH OSC AMP 8 OUTPUT 1 POWER SUPPLY (WITH HYSTERESIS) 52 Note:R1,R2,C1 and C2 are parts externally mounted UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 6 QW-R108-004.B TA31002 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM R...