UTC TA31002
LINEAR INTEGRATED CIRCUIT
TELEPHONE TONE RINGER
DESCRIPTION
The UTC TA31002 is a bipolar integrated circuit
designed for telephone bell replacement. It can also be
used as alarms or other alerting devices.
FEATURES
*Current consumption is small. (at no-load)
*Package is compaction. (DIP-8 pin)
*Oscillation frequency is variable.
*Built-in threshold circuits prevent false triggering due
to power noise as well as 鈥渃hirps鈥?due to rotary dial.
*Few external componens.
DIP-8
PIN CONFIGURATIONS
Vcc
1
2
3
4
8
7
6
5
Output
High Freq.
Time Constant
High Freq.
Time Constant
GND
RSL
Low Freq.
Time Constant
Low Freq.
Time Constant
ABSOLUTE MAXIMUM RATINGS
(Ta=25擄C )
PARAMETER
Power Supply Voltage
Power Dissipation
Operating Temperature
Storage Temperature
SYMBOL
Vcc
Pd
Topr
Tstg
VALUE
30
800
-40 to 85
-55 to 150
UNIT
V
mW
擄C
擄C
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R108-004,A
1
2
3
4
