UTC

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. simplicity, reliability, matching, and small size of a fully integrated solution. All three versions of the part typically exhibit. 90 dB of common-mode rejection. With 12 V/ s slew rate, >8.6 MHz bandwidth, and. 0.0006 % THD, these devices are sonically trans- parent. Moreover, current consumption is typically a low 2 mA. LS 1240 V ac one minute and through air 1.0 mm / over surface 1.7 mm. XI. Indicates Minor Constructive Variations. 801 through 999:Additional three digits used for special variations of construction as below. a) Variations of coil resistance. b) Variations of pick-up voltage, non-pick-up voltage, drop-out voltage or hold