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AVANTICS - AX31002

Specification No.: 050310-FE0006

AX31002

Bipolar Tone Ringer IC

Description

The AX31002 is a bipolar integrated circuit. It is designed for telephone bell

replacement. It can also be used as alarms or other alerting devices.

Features

• Current consumption is small

• Oscillation frequency is variable

• Adjustable start-up current

• Higher driving capability

• Built-in threshold circuits prevent false triggering due to power noise as well as 'chirps' due to rotary dial

• Few external components

• Easy connection to telephone system

Applications

• Telecom Tone Ringer Set

Pin Connections

Pin1: VCC

Pin5: Gnd

Pin2: RSL Trigger In (RSL)

Pin6: High Freq. Time Constant. (HRC)

Pin3: Low Freq. Time Constant. (LRC)

Pin7: High Freq. Time Constant. (HRC)

8

7

6

5

1

2

3

4

Pin4: Low Freq. Time Constant. (LRC)

Pin8: Output

Characteristics

Symbol

Rating

Unit

Supply Voltage

V

CC

30

V

Power Dissipation

P

D

500

mW

Operating Temperature

T

opr

-25 ~ +85

°C

Storage Temperature

T

stg

-55 ~ +150

°C

Block Diagram

AX31002 Series

Power Supply (With Hysteresis)

C2

High

OSC

+

-

AMP

+

-

4

R2

191K

C3

R1

165K

7

3

6

1

5

2

8

Low

OSC

+

-