The UTC 31001 is a bipolar integrated circuit designed for telephone bell replacement. It can also be used as alarms or other alerting devices. FEATURES *Designed for telephone bell replacement. *Low current drain for multiple extention of lines. *Adjustable 2-frequency tone. *Adjustable warbling rate. *Bulit-in hysteresis prevents false triggering and rota.
*Designed for telephone bell replacement.
*Low current drain for multiple extention of lines.
*Adjustable 2-frequency tone.
*Adjustable warbling rate.
*Bulit-in hysteresis prevents false triggering and rotary dial 'CHIRPS'.
*Programmable for initiation voltage by simple external resistor
DIP-8
BLOCK DIAGRAM
R2 C3 R3
4
7
6
3
C2
LOW OSC
HIGH OSC
AMP
8 OUTPUT
1
POWER SUPPLY (WITH HYSTERESIS)
5
Note:R2,R3,C2 and C3 are parts
2
externally mounted
ABSOLUTE MAXIMUM RATINGS(Ta=25°C )
CHARACTERISTIC
Supply Voltage Power Dissipation Operating Temperature Storage Temperature
SYMBOL
Vcc Pd.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | UTC31002 |
Unisonic Technologies |
TELEPHONE TONE RINGER | |
2 | UTC31002A |
Unisonic Technologies |
TELEPHONE TONE RINGER | |
3 | UTC31101 |
YOUWANG ELECTRONICS |
Voice Compander | |
4 | UTC317 |
YOUWANG ELECTRONICS |
3-TERMINAL 1.5A POSITIVE ADJUSTABLE VOLTAGEREGULATOR | |
5 | UTC317B |
YOUWANG ELECTRONICS |
3-TERMINAL 1.5A POSITIVE ADJUSTABLE VOLTAGEREGULATOR | |
6 | UTC317TB |
YOUWANG ELECTRONICS |
3-TERMINAL 1.5A POSITIVE ADJUSTABLE VOLTAGEREGULATOR | |
7 | UTC324 |
Youwang |
Qyad Operational Amplifiers | |
8 | UTC3308 |
Unisonic |
Single Supply Dual High Current Operational Amplifier Operating | |
9 | UTC339 |
Hangzhou Silan |
Quad Differential Comparator | |
10 | UTC34018 |
Youwang |
Voice Switched Speakerphone | |
11 | UTC34063 |
YW |
DC/DC | |
12 | UTC34119 |
Youw Ang |
LOW POWER AUDIO AMPLIFIER |