Datasheet Summary
TONE RINGER
DESCRIPTION
The UTC9106 is a bipolar integrated circuit designed for telephone bell replacement.
LI NEAR I NTEGRATED CI RCUI T
FUNCTIONS
- Two oscillators
- Output amplifier
- Power supply control circuit
Features
- Designed for telephone bell replacement.
- Low current drain.
- Small size 'MINIDIP' package.
- Adjustable 2-frequency tone.
- Adjustable warbling rate.
- Built-in hysteresis prevents false triggering and rotary dial 'CHIRPS'.
- Extension tone ringer modules.
- Alarms or other alerting devices.
- Adjustable for reduced supply initiation current.
DIP-8
BLOCK DIAGRAM
R2 C3 R3
C2
LOW OSC
HIGH OSC
OUTPUT
POWER SUPPLY (WITH...