TA31002

电话铃声

TELEPHONE TONE RINGER

DESCRIPTION

The is 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.