SL2411

System Logic

Semiconductor

SLS

Tone Ringer

The SL2411 is a bipolar integrated circuit designed for telephone bell

replacement.

• Designed for Telephone Bell Replacement

• Low Curent Drain

• Adjustable 2-frequency Tone

• Adjustable Warbling Rate

• Extension Tone Ringer Modules

• Alarms or Other Alerting Devices

• Adjustable for Reduced Supply Initiation Current.

• Built-in hysteresis prevents false triggering and rotary dial ‘Chirps’

ORDERING INFORMATION

SL2411N Plastic

SL2411D SOIC

° to 65° C

for package

PIN ASSIGNMENT

LOGIC DIAGRAM

PIN 5 = GND

1. Output amplifier

2. High frequency oscillator

3. Low frequency oscillator

4. Hysteresis regulator

(Regulator circuit has built-in hysteresis to prevent false

triggering and rotary dial “Chirps”)