PJ31002
Tone Ringer For Telephone Set
T
•
•
•
•
•
he PJ31002 is a bipolar integrated circuit
designed for telephone bell replacement.
DIP
-8
SOP
-8
FEATURES
Oscillation frequency is variable
Few external components
Sustaining power is low
Package is compact ( DIP-8)
Current consumption is small
P in: 1. Vcc
2. Rsl
3. Lfi
4. Lfo
5. Gnd
6. Hfo
7. Hfi
8. Out
ORDERING INFORMATION
Device
PJ31002CD
PJ31002CS
Operating Temperature
-20℃½+85℃
Package
DIP-8
SOP-8
ELECTRICAL CHARACTERISTICS
( Unless otherwise specified, T a=25
℃
, Vcc=24V)
Parameter
Operating Voltage
Supply Initiation Voltage
Sustaining Voltage
Supply Initiation Current
Sustaining Current
Oscillator Frequence
(NOTE3)
Oscillator Frequence
(NOTE3)
Oscillator Frequence
(NOTE3)
Output Voltage *Hi*
Output Voltage *Lo*
Ringing Start Voltage
Symbol
Vopr
Vsi
Vsus
Isi
lsus
fL
fH1
fH2
Voh
Vol
Vtr
Min.
--
15
10.5
1.4
0.35
9
461
576
19.7
0.5
--
Typ.
--
17
12.0
3.3
0.9
10
512
640
22.0
0.9
--
Max.
38
19.5
13.0
4.2
1.5
11
563
703
23.5
1.4
36.0
Unit
V
V
V
mA
mA
Hz
Hz
Hz
V
V
V
loh=10mA
7 Pin=GND
Iol=10mA
7 Pin=5.5V
(NOTE 4)
(NOTE 1)
(NOTE 2)
Vcc=Vsi,
No LOAD
Vcc=Vsus,
No LOAD
Conditions
Test Circuit
FIG.4
FIG.4
FIG.4
FIG.4
FIG.4
FIG.5
FIG.5
FIG.5
FIG.4
FIG.4
FIG.3
ABSOLUTE MAXIMUM RATING
(T a=25
℃
)
Parame te r
Supply Voltage
Power Dissipation
Operating T emperature Range
Storage T emperature Range
Symbol
Vcc
Pd
T opr
T stg
1-5
Rating
38
500
-20 ~ +85
-55 ~ +125
Unit
V
mW
℃
℃
2002/01.rev.A
PJ31002
Tone Ringer For Telephone Set
( NOT E 1 )
Supply initiation voltage is the value of DC supply voltage required to start the tone
ringer oscillation.
Sustaining voltage is the value of DC supply voltage required to maintain oscillation.
Oscillator frequency is determined by the following equations :
fL = 1 / ( 1.234 * R1 * C1 )
fH1 = 1 / ( 1.515 * R2 * C2 )
fH2 = 1.24 * fH1
( NOT E 4 )
Hz
Hz
Hz
( NOT E 2 )
( NOT E 3 )
Ringing start voltage is the value of AC supply voltage required to start the tone ringer
ringing in FIG.3
T his product is not designed for protection against radioactive rays.
All data and specifications are subject to change without notice.
( NOT E 5 )
( NOT E 6 )
Figure 2. Block Diagram
2-5
2002/01.rev.A
PJ31002
Tone Ringer For Telephone Set
HO W TO USE THE RSL PIN
In the IC, the supply initiation current (lsi) can be
Vc c
1
changed using the RSL Pin . As show is the diagram, the
RSL (Pin 2) is grounded through resistor Rs. By changing
the Rs value, supply initiation current can be changed.
Supply
voltage
(Vcc)
vs.
supply
current
(lcc)
Rs
5
2
characteristics resulting from changes in the value of Rs are
shown in the following diagram.
G ND
Ic c (m A)
4
Rs= 6.8K
Rs= 10K
Rs= 18K
3
2
1
10
20
Vc c (V)
Figure 3.Ringing Start Voltage Te st Circuit
1N4004* 4
Tone Ringer
10uF/35
1
2
27V
1uF/250
680K
103pF
AC f=20H
104pF
8
7
6
5
100
4.7uF/50
8.2K
+
+
10K
3
4
3-5
2002/01.rev.A
PJ31002
Tone Ringer For Telephone Set
FIG. 4 Test Circuit (1)
Isi Isus
Tone Ringer IC
1
2
Vsi
Vsus
V
Vcc
3
Rs
4
R1
C1
C2
Voh
Vol
5
8
7
6
R2
5 5V
V
SW2
3
2
1
SW1
1 To Oscilloscope
2
10mA
A
•
SWITCH POSITION IS THE FOLLOWING TABLE :
PARAMETER
SW1
SW2
Vsi , Isi
Vsus , Isus
Voh
Vol
1
1
2
2
1
1
2
3
R1
R2
C1
C2
= 165 K (+/-)
= 191 K (+/-)
= 0.47
µF
(+/-)
= 0.0068
µF
(+/-)
1%
1%
5%
5%
FIG. 4 Te st Circuit (2)
Isi.Isus
Tone Ringer IC
1
3
2
1
2
SW 1
3
4
5.5V
C1
1 SW2
R1
8
7
6
5
C2
2
R2
f1.fH1. fH2
To Oscilloscope
A
Vsi.
Vsus
V
Vcc
Rs
•
SWITCH POSITION IS THE FOLLOWING TABLE :
PARAMETER
SW1
SW2
FL
fH1
fH2
1
1
2
1
1
2
R1
R2
C1
C2
= 165 K (+/-) 1%
= 191 K (+/-) 1%
= 0.47
µF
(+/-) 5%
= 0.0068
µF
(+/-) 5%
4-5
2002/01.rev.A
PJ31002
Tone Ringer For Telephone Set
DIM
A
B
C
D
G
J
K
L
M
MILLIMETERS
MIN
MAX
9.07
9.32
6.22
6.48
3.18
4.43
0.35
0.55
2.54BSC
0.29
0.31
3.25
3.35
7.75
8.00
-
10
°
INCHES
MIN
MAX
0.357
0.367
0.245
0.255
0.125
0.135
0.019
0.020
0.10BSC
0.011
0.012
0.128
0.132
0.305
0.315
-
10
°
DIM
A
B
C
D
F
G
K
M
P
R
MILLIMETERS
MIN
MAX
4.80
5.00
3.80
4.00
1.35
1.75
0.35
0.49
0.40
1.25
1.27BSC
0.10
0.25
0°
7°
5.80
6.20
0.25
0.50
INCHES
MIN
MAX
0.189
0.196
0.150
0.157
0.054
0.068
0.014
0.019
0.016
0.049
0.05BSC
0.004
0.009
0°
7°
0.229
0.244
0.010
0.019
5-5
2002/01.rev.A
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