UTCTA31002A Datasheet, PDF (1/4 Pages) Unisonic Technologies – TELEPHONE TONE RINGER

UTCTA31002A LINEAR INTEGRATED CIRCUIT
TELEPHONE TONE RINGER
DESCRIPTION
The UTC TA31002A 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 extension of lines.
*Adjustable 2-frequency tone.
*Adjustable warbling rate.
*Built-in hysteresis prevents false triggering and
rotary dial 'CHIRPS'.
*Programmable for initiation current by simple
external resistor
DIP-8
PIN CONFIGURATIONS
Vcc
1
RSL
2
Low Freq.
Time Constant 3
Low Freq.
4
Time Costant
8 Output
7
High Freq.
Time Constant
6 ^{High Freq.}
Time Constant
5 GND
ABSOLUTE MAXIMUM RATINGS(Ta=25°C )
PARAMETER
SYMBOL
Supply Voltage
Vcc
Power Dissipation
Pd
Operating Temperature
Topr
Storage Temperature
Tstg
VALUE
30
400
-45 to 85
-65 to 150
UNIT
V
mW
°C
°C
UTC UNISONIC TECHNOLOGIES CO., LTD. ¹