TELEPHONE TONE RINGER

DESCRIPTION
The UTC TA31002is a bipolar integrated circuit designed for telephone bell replacement. It can also be used as alarms or other alerting devices.

„ FEATURES
* Current consumption is small. (at no-load)
* Package is compaction. (DIP-8 pin)
* Oscillation frequency is variable.
* Built-in threshold circuits prevent false triggering due to power noise as well as “chirps” due to rotary dial.
* Few external components.