DESCRIPTION
THE
KA2410/2411 IS A BIPOLAR INTEGRATED CIRCUIT DESIGNED FOR
TELEPHONE TONE RINGER.THESE DEVICES CONSISTS OF AN OUTPUT
AMPLIFIER, TWO OSCILLATORS, AND POWER SUPPLY CONTROL CIRCUIT.
FEATURES
!
Low current drain
!
Adjustable 2 tone frequency
!
Hysteresis circuit prevents false triggering and rotary dial "CHIRPS"
!
8 pin DIP plastic package
!
External triggering or ringer disables (KA2410)
!
Adjustable for reduced supply initiation current (KA2411)
APPLICATIONS
!
Telephone bell replacement
!
Extension tone ringer modules
!
Alarms or other alerting devices
PIN ASSIGNMENT
PIN
NAME
FUNCTION
1
V
CC
Power Supply
2
RSL
Resistor Select
3
LFI
Low freq. osc. Input
4
LFO
Low freq. osc. Output
5
GND
Ground
6
HFO
High freq. osc. Output
7
HFI
High freq. osc. Input
8
OUT
Output
ABSOLUTE MAXIMUM RATINGS
Voltage values are with respect to the anode terminal unless otherwise noted
PARAMETER
SYMBOL
RATING
UNITS
DC Supply Voltage
V
CC
36
V
Power Dissipation
P
D
450
mW
Operating Ambient Temperature Range
T
A
-25~+75
Storage Temperature Range
T
STG
-65~+150
PIN CONFIGURATION
V
CC
RSL
LFI
LFO
OUT
HFI
HFO
GND
(TOP VIEW)
Wing Shing Computer Components Co., (H.K.)Ltd.
Tel:(852)2341 9276 Fax:(852)2797 8153
Homepage:
http://www.wingshing.com
E-mail: wsccltd@hkstar.com
KA2410/KA2411
TELEPHONE TONE RINGERS
8-pin DIP
DIP-8
SOP-8
ELECTRICAL CHARATERISTICS (V
CC
=24V, T
A
=25
, UNLESS OTHERWISE NOTED)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP MAX UNIT
Operating Voltage
V
CC
36
V
SI
17
19
21
V
Supply Initiation
Voltage
Current
I
SI
V
CC
=V
SI
, No load #1
1.4
2.5
4.2
mA
V
SUS
9.7
10.5
12
V
Sustaining Voltage
Current
I
SUS
V
CC
=V
SUS
, No load #2
0.2
0.9
2.5
mA
Oscillator Freq. #3
f
L
R1=165k, C1=0.47f
9
10
11
Hz
Oscillator Freq. #3
f
H1
R2=191k, C2=6800pF
461
512
563
Hz
Oscillator Freq. #3
f
H2
R2=191k, C2=6800pF
576
640
703
Hz
V
OH
17.7
19
21.5
Output
High Voltage
Low Voltage
V
OL
V
CC
=21V
I
OH
=15mA
I
OL
=15mA
1.6
V
V
TRG
8.5
10.5
V
Trigger
Voltage #4
Current #5
I
TRG
V
CC
=15V
KA2410 Only ( 2 pin)
20
1000
A
V
DIS
0.4
0.8
V
Disable
Voltage
Current #6
I
DIS
KA2410 Only ( 2 pin)
-40
-20
A
#1.
Supply initiation voltage is the value of DC supply voltage required to start the tone ringer oscillating.
#2.
Sustaining voltage is the value of DC supply voltage required to maintain the oscillation.
#3.
Oscillator frequency is determined by the following equations:
f
L
= 1/(1.359XR1XC1)(Hz)
f
hi
= 1/(1.518XR2XC2)(Hz)
f
h2
= 1.214Xf
HI
(Hz)
#4.
V
TR
and I
TR
the conditions applied to trigger input to start oscillation for V
SUS
V
CC
V
SI
.
#5.
Trigger current must be limited to this value externally.
#6.
V
DIS
and I
DIS
are the conditions applied to trigger input to inhibit oscillation for V
SI
V
CC
.
APPLICATION CIRCUIT FOR 2410
1
2
3
4
5
6
7
8
2410
T
R
f=20Hz
250V 6.2k
27V
50V
C1
220nF
R1 220k
RSL
50V 470k
R2 180k
10K
C2
4.7nF
1F
1F
10F
KA2410/KA2411
TELEPHONE TONE RINGERS
APPLICATION CIRCUIT FOR 2411
Use of RSL pin (for KA2411 only)
1
2
3
4
5
6
7
8
2411
T
R
f=20Hz
250V 6.2k
27V
50V
C1
220nF
R1 220k
RSL
50V 470k
R2 180k
10K
C2
4.7nF
1F
10F
10F
0
0
0
0
1
1
1
1
2
2
2
2
3
3
3
3
10
10
10
10
20
20
20
20
V
V
V
V
CC
CC
CC
CC
[V]
[V]
[V]
[V]
I
CC
[mA]
[mA]
[mA]
[mA]
RSL=6.2k
RSL=6.2k
RSL=6.2k
RSL=6.2k
RSL=10k
RSL=10k
RSL=10k
RSL=10k
RSL=15k
RSL=15k
RSL=15k
RSL=15k
Shown the supply initiation current (I
SI
) can
be changed using the RSL pin.
KA2410/KA2411
TELEPHONE TONE RINGERS
Pad Location KA2410 / KA2411
For KA2410 2A pad to be used, 2B pad not connected;
For KA2411 2B pad to be used, 2A pad not connected.
Coordinates
Pad N
Pad Name
X (m)
Y (m)
1
V
CC
95
270
2A
925
90
2B
RSL
690
90
3
LFI
1245
90
4
LFO
1245
490
5
GND
1245
765
6
HFO
1245
1185
7
HFI
460
1185
8
OUT
95
1185
3
1
4
5
6
7
8
2B
2A
110
110
Chip Size 1.45 X 1.45mm
X
Y
KA2410/KA2411
TELEPHONE TONE RINGERS
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