Production£º

¡¾Part No.¡¿     LS1240A
¡¾Category¡¿   electronic tone ringer with built-in bridge rectifier
¡¾Packing¡¿    DIP8
¡¾MFQ¡¿           UTC
¡¾Datasheet¡¿LS1240A Datasheet

DESCRIPTION 
 The  UTC  LS1240A is monolithic integrated circuits and
designed to be as a telephone ringer. It can drive a piezo-ceramic
converter(buzzer) directly. The output current capacity of UTC
LS1240A is higher than standard ringer. For driving a dynamic
loudspeaker, UTC LS1240A needs only a decoupling capacitor to
replace the usual transformer in use.
 
„ FEATURES
* Low current consumption.
* Integrated rectifier bridge with zener diodes to overvoltage Protection.
* Minimum external circuitry.
* Both frequencies of tone and switching are adjustable by external
components.
* Integrated voltage and current hysteresis.

Contact person:

Frances New

Phone:+86-755-81832961

Fax:+86-755-83299282

Email:sumzi@sumzi.com

MSN:sumzi-frances@msn.com

http://www.sumzi.com