Contek TA31001 Datasheet
TA31001 LINEAR INTEGRATED CIRCUIT
TELEPHONE TONE RINGER
DESCRIPTION
The Contek TA31001 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 voltage by simple
external resistor.
BLOCK DIAGRAM
DIP-8
R2
C3
Contek
C2
3
1
LOW
OSC
POWER SUPPLY (WITH HYSTERESIS)
5 2
Note:R2,R3,C2 and C3 are parts externally mounted
HIGH
OSC
R3
674
Contek Microelectronics Co.,Ltd.
AMP
8
OUTPUT
1
CONTEK
http://www.contek-ic.com E-mail:sales@contek-ic.com
TA31001 LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS(Ta=25 C )
Supply Voltage Vcc 30 V
Power Dissipation Pd 400 mW
Operating Temperature Topr -45 to 85
Storage Temperature Tstg -65 to 150
ELECTRICAL CHARACTERISTICS( Ta=25 C )
(All voltage referenced to GND unless otherwise specified)
Operating Supply Voltage Vcc 29 V
Initiation Supply Voltage (note 1) Vsi See Fig.2 17 19 21 V
Initiation Supply Current (note 1) Isi 6.8K-Pin 2 to GND 1.4 3.5 4.2 mA
Sustaining Voltage (note 2) Vsus See Fig.2 9.7 11 12 V
Sustaining Current (note 2) Isus No Load Vcc=Vsus,See Fig.2 0.7 1.4 2.5 mA
Output Voltage High VOH Vcc=21V, I8=-15mA
Output Voltage Low VOL Vcc=21V, I8=15mA
IIN(Pin 3)
I
High Frequency 1 FH1 R3=191K, C3=6800pF 461 512 563 Hz
High Frequency 2 FH2 R3=191K, C3=6800pF 576 640 704 Hz
Low Frequency FL
*NOTE (See electrical characteristics sheet)
1. Initiation supply voltage ( Vsi) is the supply voltage required to start the tone ringer oscillating.
2. Sustaining voltage ( Vsus) is the supply voltage required to maintain oscillation.
PARAMETER SYMBOL VALUE UNIT
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
17.0 19 21 V
Pin6=6V, Pin7=GND
Pin6=GND, Pin7=6V
IN(Pin 7)
Pin3=6V, Pin4=GND
Pin7=6V, Pin6=GND
R2=165K, C2=0.47mF
-
-
-
-
91011Hz
C
C
1.6 V
500
500nAnA
4.0
3.5
3.0
2.5
2.0
1.5
1.0
Icc(mA),Supply Current
0.5
CONTEK
Circuit Current-Supply Voltage
(No Load)
Vcc(V),Supply voltage
Supply Current (mA)
3430262218141062 3430262218141062
Supply Current Vs. Supply Voltage
8.5
7.5
6.5
5.5
4.5
A:R SL=5K
3.5
B:R SL=6.8K
C:R SL=13K
2.5
1.5
0.5
(No Load)
Vcc(V),Supply voltage
Fig. 1 Fig. 2
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
3430262218141062 3430262218141062
2
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