DESCRIPTION
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 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 UTC UNISONIC TECHNOLOGIES CO. LTD 1 QW-R108-003,A UTC TA31001 LINEAR INTEGRATED CIRCUIT 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 ELECTRICAL CHARACTERISTICS
( Ta=25°C ) (All voltage referenced to GND unless otherwise specified) PARAMETER Operating Supply Voltage Initiation Supply Voltage (note 1) Initiation Supply Current (note 1) Sustaining Voltage (note 2) Sustaining Current (...
Unisonic Technologies
