SL2411
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
TA = -45° to 65° C
for package
LOGIC DIAGRAM
PIN ASSIGNMENT
PIN 1 = VCC
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”)
SLS
System Logic
Semiconductor