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IK Semiconductor |
TECHNICAL DATA
Tone Ringer
IL2411N/D
The IL2411 is a bipolar integrated circuit designed for telephone
bell replacement.
• Designed for Telephone Bell Replacement
• Low Current 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’
8-SOP
8-DIP
TA = -45° to 65° C
LOGIC DIAGRAM
www.DataSheet4UP.INcASoSIGmNMENT
V CC OUT
R SL HFI
LFI HF0
LF0 GND
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
IL2411
PIN DESCRIPTION
Name
VCC
RSL
LFI
LF0
GND
HF0
HFI
Out
Pin
1
2
3
4
5
6
7
8
Description
Positive power supply.
External resistor
Input low frequency oscillator
Output low frequency oscillator
Negative power supply
High frequency oscillator output
High frequency oscillator input
Tone output
MAXIMUM RATINGS*
Symbol
Parameter
Value
VCC
PD
Tstg
DC Supply Voltage (Referenced to GND)
Power Dissipation in Still Air, Plastic DIP
Storage Temperature
to +30.0
400
-65 to +150
* Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the Recommended Operating Conditions.
Unit
V
mW
°C
RECOMMENDED OPERATING CONDITIONS
Symbol
VCC
TA
Parameter
DC Supply Voltage (Referenced to GND)
Operating Temperature
Min
Max
Unit
13.0 29.0
V
-45 +65 °C
This device contains protection circuitry to guard against damage due to high static voltages or electric fields.
However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this
high-impedance circuit. For proper operation, VIN and VOUT should be constrained to the range GND≤(VIN or
VOUT)≤VCC.
Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or VCC). Unused
outputs must be left open.
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