UTC2411

UTC2411 TONE RINGER DESCRIPTION The UTC2411 is a bipolar integrated circuit designed for telephone bell replacement. LI NEAR I NTEGRATED CI RCUI T FUNCTIONS *Two oscillators *Output amplifier *Power supply control circuit FEATURES *Designed for telephone bell replacement. *Low current drain. *Small size 'MINIDIP' package. *Adjustable 2-frequency tone. *Adjustable warbling rate. *Built-in hysteresis prevents false triggering and rotary dial 'CHIRPS'. *Extension tone ringer modules. *Alarms or other alerting devices. *Adjustable for reduced supply initiation current. DIP-8 BLOCK DIAGRAM R2 C3 R3 4 7 6 C2 1 POWER SUPPLY (WITH HYSTERESIS) 5 2 Note:R2,R3,C2 and C3 are parts externally mounted ABSOLUTE MAXIMUM RATINGS(Ta=25°C ) Characteristic Supply Voltage Power Dissipation Operating Temperature Storage Temperature Symbol Vcc Pd Topr Tstg Value 30 400 -45 to 65 -65 to 150 Unit V mW °C °C w w w .d h s a t a ee . u 4 ANG ELECTRONI CS CO. LTD tYOUW m o c 1 www.DataSheet4U.com 3 LOW OSC HIGH OSC AMP 8 OUTPUT UTC2411 Characteristic Operating Supply Voltage Initiation Supply Voltage1 Initiation Supply Current1 Sustaining Voltage2 Sustaining Current2 Output Voltage High Output Voltage Low IIN(Pin3) IIN(pin7) High Frequency 1 High Frequency 2 Low Frequency FH1 FH2 FL LI NEAR I NTEGRATED CI RCUI T Symbol Vcc Vsi Isi Vsus Isus VOH VOL ELECTRICAL CHARACTERISTICS( Ta=25°C ) (All voltage referenced to GND unless otherwise specified) Test Condition See Fig....