UTCTA31002 Datasheet, PDF (1/4 Pages) Unisonic Technologies – TELEPHONE TONE RINGER

UTCTA31002 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 “chirps” due to rotary dial.
*Few external componens.
DIP-8
PIN CONFIGURATIONS
Vcc
1
RSL
2
Low Freq.
Time Constant 3
Low Freq.
4
Time Constant
8 Output
7
High Freq.
Time Constant
6 ^{High Freq.}
Time Constant
5 GND
ABSOLUTE MAXIMUM RATINGS (Ta=25°C )
PARAMETER
SYMBOL
Power Supply Voltage
Vcc
Power Dissipation
Pd
Operating Temperature
Topr
Storage Temperature
Tstg
VALUE
30
800
-40 to 85
-55 to 150
UNIT
V
mW
°C
°C
UTC UNISONIC TECHNOLOGIES CO., LTD. ¹
QW-R108-004,A