UNISONIC TECHNOLOGIES CO., LTD

31002A

LINEAR INTEGRATED CIRCUIT

www.unisonic.com.tw

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Copyright © 2008 Unisonic Technologies Co., Ltd

QW-R108-005.C

TELEPHONE TONE RINGER

DESCRIPTION

The UTC 31002A is a bipolar integrated circuit designed for

telephone bell replacement. It can also be used as alarms or other

alerting devices.

FEATURES

*Designed for telephone bell replacement.

*Low current drain for multiple extension of lines.

*Adjustable 2-frequency tone.

*Adjustable warbling rate.

*Built-in hysteresis prevents false triggering and rotary dial

'CHIRPS'.

*Programmable for initiation current by simple external resistor

DIP-8

SOP-8

*Pb-free plating product number: 31002AL

ORDERING INFORMATION

Ordering Number

Normal

Lead Free Plating

Package

Packing

31002A-D08-T

31002AL-D08-T

DIP-8

Tube

31002A-S08-R

31002AL-S08-R

SOP-8

Tape Reel

31002A-S08-T

31002AL-S08-T

SOP-8

Tube