TA31002A 查看數據表（PDF） - Contek Microelectronics
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TA31002A Datasheet PDF : 4 Pages
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TA31002A LINEAR INTEGRATED CIRCUIT
TELEPHONE TONE RINGER
DESCRIPTION
The Contek 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.
TimeConstant 3
Low Freq.
Time Costant
4
Contek
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
Contek Microelectronics Co.,Ltd.
1
CONTEK
http://www.contek-ic.com E-mail:sales@contek-ic.com
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