Datasheet Summary
FORWARD INTERNATIONAL ELECTRONICS LTD.
SEMICONDUCTOR TECHNICAL DATA
TELEPHONE TONE RINGER
The 2411 is a bipolar integrated circuit designed for telephone tone ringer. Features
- Designed for telephone bell replacement
- Adjustable 2-tone frequency
- Hysteresis circuit prevents false triggering and rotary dial “Chirps”
- Adjustable for reduced supply initiation current Package: DIP-8 Pin No 1 2 3 4 5 6 7 8 Name VCC RSL LFI LFO GND HFO HFI OUT Function Power supply (+) Resistor select Low freq osc input Low freq osc output Ground (-) High freq osc output High freq osc input Signal output
1 2 3 4
8 7 6...
