DESCRIPTION
The UTC 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 PIN CONFIGURATIONS Vcc 1 2 3 4 8 7 6 5 Output High Freq. Time Constant High Freq. Time Constant GND RSL Low Freq. Time Constant Low Freq. Time Costant ABSOLUTE MAXIMUM RATINGS
(Ta=25°C ) PARAMETER Supply Voltage Power Dissipation Operating Temperature Storage Temperature SYMBOL Vcc Pd Topr Tstg VALUE 30 400 -45 to 85 -65 to 150 UNIT V mW °C °C UTC UNISONIC TECHNOLOGIES CO., LTD. 1 UTC TA31002A LINEAR INTEGRATED CIRCUIT BLOCK DIAGRAM R2 C3 R3 4 7 6 3 C2 LOW OSC HIGH OSC AMP 8 OUTPUT 1 POWER SUPPLY (WITH HYSTERESIS) 5 2 Note:R2,R3,C2 and C3 are parts externally mounted ELECTRICAL CHARACTERISTICS
( Ta=25°C, all voltage referenced to GND unless otherwise specified) PARAMETE...
Unisonic Technologies
