ta31002a Unisonic Technologies, ta31002a Datasheet - Page 2

• Manufacturer Part Number: ta31002a
• Description: Telephone Tone Ringer
• Manufacturer: Unisonic Technologies

UTC TA31002A LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM
ELECTRICAL CHARACTERISTICS
*NOTE (See electrical characteristics sheet)
UTC
Operating Supply Voltage
Initiation Supply Voltage (note 1)
Initiation Supply Current (note 1)
Sustaining Voltage (note 2)
Sustaining Current (note 2)
Output Voltage High
Output Voltage Low
I
I
High Frequency 1
High Frequency 2
Low Frequency
IN
IN
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.
(Pin 3)
(Pin 7)
PARAMETER
C2
UNISONIC TECHNOLOGIES CO., LTD.
3
1
R2
Note:R2,R3,C2 and C3 are parts externally mounted
SYMBOL
Vcc
Vsi
Isi
Vsus
Isus
VOH
VOL
FH1
FH2
FL
LOW
OSC
POWER SUPPLY (WITH HYSTERESIS)
( Ta=25 C, all voltage referenced to GND unless otherwise specified)
4
5
No Load Vcc=Vsus,See Fig.2
C3
R3=191K, C3=6800pF
R3=191K, C3=6800pF
TEST CONDITIONS
R2=165K, C2=0.47 F
Pin6=6V, Pin7=GND
Pin6=GND, Pin7=6V
Pin3=6V, Pin4=GND
Pin7=6V, Pin6=GND
Vcc=21V, I8=-15mA
Vcc=21V, I8=15mA
6.8K-Pin 2 to GND
7
See Fig.2
See Fig.2
HIGH
OSC
R3
6
2
AMP
MIN
17.0
461
576
1.4
9.7
0.7
9.0
17
8
OUTPUT
TYP
11.0
19.0
512
640
2.8
1.4
19
10
MAX
29.0
12.0
21.0
11.0
500
500
563
704
4.2
2.5
1.6
21
UNIT
mA
mA
nA
nA
Hz
Hz
Hz
V
V
V
V
V
2