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DESCRIPTION
KA2410/KA2411
TELEPHONE TONE RINGERS
8-pin DIP
DIP-8
SOP-8
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
1VCCPower 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 u nless otherwise noted
P ARAMETER SYMBOL RATING UNITS
DC Supply Voltage V
Power Dissipation P
Operating Ambient Temperature Range T
Storage Temperature Range T
CC
D
A
STG
PIN CONFIGURATION
V
CC
RSL
LFI
LFO
36 V
450 mW
-25~+75
-65~+150
(TOP VIEW)
OUT
HFI
HFO
GND
℃
Wing Shing Computer Components Co., (H.K.)Ltd. Tel:(852)2341 9276 Fax:(852)2797 8153
Homepage: http://www.wingsh ing.com E-mail: [email protected]
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ELECTRICAL CHARATERISTICS (VCC=24V, TA=25 ℃℃℃℃, UNLESS OTHERWISE NOTED)
KA2410/KA2411
TELEPHONE TONE RINGERS
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Operating Voltage V
Supply Initiation
Volt a ge
Current
Sustaining Voltage
Current
Oscillator Freq. #3 f
Oscillator Freq. #3 f
Oscillator Freq. #3 f
Output
High Voltage
Low Voltage
Trigger
Voltage #4
Current #5
Disable
Volt a ge
Current #6
#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:
#4. V
#5. Trigger current must be limited to this value externally.
#6. V
= 1/(1.359XR1XC1)(Hz)
f
L
f
= 1/(1.518XR2XC2)(Hz)
hi
= 1.214XfHI (Hz)
f
h2
and ITR the conditions applied to trigger input to start oscillation for V
TR
and I
DIS
are the conditions applied to trigger input to inhibit oscillation for VSI ≤ VCC.
DIS
V
V
I
V
V
I
V
V
I
SUS
SUS
H1
H2
TRG
TRG
I
DIS
CC
SI
L
OH
OL
DIS
SI
17 19 21
VCC=VSI, No load #1 1.4 2.5 4.2 mA
9.7 10.5 12 V
VCC=V
R1=165kΩ, C1=0.47µf
R2=191kΩ, C2=6800pF
R2=191kΩ, C2=6800pF
, No load #2 0.2 0.9 2.5 mA
SUS
91011Hz
461 512 563 Hz
576 640 703 Hz
VCC=21V
I
=15mA
OH
=15mA
I
OL
VCC=15V
17.7 19 21.5
8.5 10.5
KA2410 Only ( 2 pin) 20 1000 µA
0.4 0.8
KA2410 Only ( 2 pin) -40 -20 µA
≤ VCC ≤ VSI.
SUS
36
V
V
1.6
V
V
APPLICATION CIRCUIT FOR 2410
1µF 1µF
250V
T
R
f=20Hz
6.2k
27V
RSL
1
2
2410
3
R1 220k
4
10µF
50V
C1
220nF
8
7
6
5
50V 470k
R2 180k
10K
C2
4.7nF
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APPLICATION CIRCUIT FOR 2411
KA2410/KA2411
TELEPHONE TONE RINGERS
1µF 10µF
250V
T
R
f=20Hz
6.2k
I
CC
[mA]
[mA]
[mA][mA]
RSL
1
2
2411
27V
R1 220k
10µF
50V
C1
220nF
3
4
Shown the supply initiation current (ISI) can
be changed using the RSL pin.
8
7
6
5
50V 470k
R2 180k
10K
C2
4.7nF
3333
2222
1111
0000
RSL=6.2k
RSL=6.2k
RSL=6.2kRSL=6.2k
10
1020
1010
RSL=10k
RSL=10k
RSL=10kRSL=10k
RSL=15k
RSL=15k
RSL=15kRSL=15k
20
2020
VVVV
CC
CC
CCCC
[V]
[V]
[V][V]
Use of RSL pin (for KA2411 only)
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Pad Location KA2410 / KA2411
KA2410/KA2411
TELEPHONE TONE RINGERS
78
6
5
4
110
1
3
110
2B 2A
Y
X
For KA2410 2A pad to be used, 2B pad not connected;
For KA2411 2B pad to be used, 2A pad not connected.
Pad N Pad Name
1VCC95 270
2A 925 90
2B
3 LFI 1245 90
4 LFO 1245 490
5 GND 1245 765
6 HFO 1245 1185
7 HFI 460 1185
8 OUT 95 1185
Chip Size 1.45 X 1.45mm
RSL
Coordinates
X (µm) Y (µm)
690 90
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Pad Location KA2410 / KA2411 ( new design )
KA2410/KA2411
TELEPHONE TONE RINGERS
78
6
5
4
100
1
3
100
2
Y
Chip Size 1.25 X 1.25mm
Pad N Pad Name
1VCC75 250
2 RSL 640 81
3 LFI 1095 81
4 LFO 1095 469
5 GND 1095 731
6 HFO 1095 1037
7 HFI 447 1037
8OUT751037
Coordinates
X (µm) Y (µm)
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