Replacement of
KA2410/KA2411
MIK2410/MIK2411
Tone Ringers
February 1995 - revised October 1999
Description
The MIK2410/ MIK2411 is a bipolar integrated circuits 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 prevent false triggering and rotary dial
Chirps
8 pin DIP plastic package
External triggering or ringer disable (MIK2410)
Adjustable for reduced supply initiation current (MIK2411)
Applications
Telephone bell replacement
Extension tone ringer modules
Alarms or other alerting devices
Pin Configuration
(TOP VIEW)
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
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
C
Note 1: Voltage values are with respect to the anode terminal unless otherwise noted
Electrical characteristics
(V
CC
=24V, T
a
=25C, unless otherwise noted)
Parameter Symbol
Test
Conditions
Min
Typ
Max
Units
Operating Voltage
V
CC
36
V
SI
(Note 1)
17
19
21
V
Supply Initiation
Voltage
Current
I
SI
V
CC
=V
SI
, No load
1.4
2.5
4.2
mA
Sustaining
Voltage
V
SUS
(Note 2)
9.7
10.5
12
V
Current
I
SUS
V
CC
=V
SUS
, No load
0.2
0.9
2.5
mA
Oscillator Freq. (Note 3)
f
L
R1=165k
, C1=0.47F
9 10
11 Hz
Oscillator Freq. (Note 3)
f
H1
R2=191k
, C2=6800pF
461 512 563 Hz
Oscillator Freq. (Note 3)
f
H2
R2=191k
, C2=6800pF
576 640 703 Hz
Output
High Voltage
V
OH
V
CC
=21V
I
OH
=15mA
17.7
19
21.5
Low Voltage
V
OL
I
OL
=15mA
1.6
V
Trigger
Voltage (Note 4)
V
TRG
V
CC
=15V
8.5
10.5
V
Current (Note 5)
I
TRG
MIK2410 Only (2 pin)
20
1000
A
Disable
Voltage
V
DIS
0.4
0.8
V
Current (Note 6)
I
DIS
MIK2410 Only (2 pin)
-40
-20
A
Note 1: Supply initiation voltage is the value of DC supply voltage required to start the tone ringer oscillating.
Note 2: Sustaining voltage is the value of DC supply voltage required to maintain the oscillation.
Note 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)
Note 4: V
tr
and I
tr
the conditions applied to trigger input to start oscillation for V
sus
V
CC
V
si.
Note 5: Trigger current must be limited to this value externally.
Note 6: V
dis
and I
dis
are the conditions applied to trigger input to inhibit oscillation for V
si
V
CC.
Page 1 of 4
Replacement of
KA2410/KA2411
MIK2410/MIK2411
Tone Ringers
February 1995 - revised October 1999
f=20Hz
T
R
6.2k
1 F
250V
10 F
50V
27V
+
RSL
220k
R1
C1
220nF
1
2
3
4
5
6
7
8
R2 180k
C2
4.7nF
1 F
50V
470k
+
10k
~
Figure 1. Application Circuit for MIK2410
f=20Hz
T
R
6.2k
1 F
250V
10 F
50V
27V
+
RSL
220k
R1
C1
220nF
MIK2411
1
2
3
4
5
6
7
8
R2 180k
C2
4.7nF
10 F
50V
470k
+
10k
~
Figure 2. Application Circuit for MIK2411
Shown the supply initiation current (Isi) can be
changed using the RSL pin.
RSL=6.2k
RSL=10k
RSL=15k
I
CC
V
CC
[mA]
[V]
Figure 3. Use of RSL pin (for MIK2411 only)
3
2
1
0
10
20
Page 2 of 4
Replacement of
KA2410/KA2411
MIK2410/MIK2411
Tone Ringers
February 1995 - revised October 1999
Pad Location MIK2410/MIK2411
(See Note 1)
Chip size 1.45x1.45 mm
Pad Location Coordinates
Coordinates
Pad N
Pad Name
X (
m)
Y (
m)
1
VCC
95
270
2A
RSL
925
90
2B
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
Note 1: For MIK2410 2A pad to be used, 2B pad not connected; for MIK2411 2B
pad to be used, 2A pad not connected.
Page 3 of 4
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