TECHNICAL DATA
IL2411N/D
Tone Ringer
The IL2411 is a bipolar integrated circuit designed for telephone
bell replacement.
• Designed for Telephone Bell Replacement
• Low Current Drain
8-SOP
• 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’
8-DIP
TA = -45° to 65° C
LOGIC DIAGRAM
PIN ASSIGNMENT
V
OUT
HFI
CC
R
SL
LFI
HF0
GND
LF0
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”)
1
INTEGRAL [ INTEGRAL CORP. ]
