UNISONIC TECHNOLOGIES CO., LTD
KA22241
DUAL EQUALIZER AMPLIFIER
WITH ALC
DESCRIPTION
LINEAR INTEGRATED CIRCUIT
The UTC
KA22241
is a monolithic integrated circuit,
consisting of dual equalizer amplifier with ALC, and it is suitable
for stereo radio cassette tape recorders.
FEATURES
* Dual equalizer amplifier with built-in ALC circuit
* Low noise V
NI
=1.0μV(Typical)
* High open loop voltage gain: Gv=80dB(Typical)
* Good ALC response balance between channels
* Not necessary the input coupling capacitor
* Not necessary the diode or transistor for ALC
* Built in power supply muting circuit
* Minimum number of external parts required
ORDERING INFORMATION
Ordering Number
KA22241G-G09-T
KA22241G-S14-R
Package
SIP-9
SOP-14
Packing
Tube
Tape Reel
MARKING
SIP-9
SOP-14
www.unisonic.com.tw
Copyright © 2015 Unisonic Technologies Co., Ltd
1 of 6
QW-R110-001.D
KA22241
BLOCK DIAGRAM
LINEAR INTEGRATED CIRCUIT
channel 1
mute
ALC
channel 2
1
NF1
2
3
4
5
6
V
CC
7
8
9
NF2
IN1 OUT1 GND ALC
SIP-9
OUT2 IN2
SOP-14
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 6
QW-R110-001.D
KA22241
ABSOLUTE MAXIMUM RATING
(T
A
= 25°C)
PARAMETER
SYMBOL
V
CC
LINEAR INTEGRATED CIRCUIT
RATINGS
UNIT
Supply Voltage
16
V
SIP-9
550
Power Dissipation
P
D
mW
SOP-14
450
Operating Temperature
T
OPR
-20 ~ 75
C
Storage Temperature
T
STG
-20 ~ 125
C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
ELECTRICAL CHARACTERISTICS
(T
A
= 25°C, V
CC
=7V, f=1KHZ, unless otherwise specified)
PARAMETER
SYMBOL
V
IN
V
OUT
I
CCQ
G
VO
G
VC
∆V
ALC
CB
ALC
THD
R
IN
TEST CONDITIONS
R
G
=2.2KΩ
BW(-3dB)=20HZ~20KHZ
THD=1%
V
IN
=0
V
OUT
=0.3V
V
OUT
=0.3V
R
O
=3.9KΩ, THD=10%
V
IN
=1mV
V
OUT
=0.3V
MIN
TYP
1.0
0.6
1.5
70
45
40
1.2
3.5
80
48
45
0
0.1
25
MAX
2.0
4.5
50
2.5
0.3
45
UNIT
μV
V
mA
dB
dB
dB
dB
%
k
Input Noise Voltage
Output Voltage
Quiescent Circuit Current
Open Loop Voltage Gain
Closed Loop Voltage Gain
ALC Range
ALC Balance
Total Harmonic Distortion
Input Resistance
15
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
3 of 6
QW-R110-001.D
KA22241
TEST CIRCUIT
LINEAR INTEGRATED CIRCUIT
SW 4
1M
330µF
3.9k
SW7
ON
ON
ON
ON
ON
ON
ON
ON
OFF
2.2k
SW 7
2.2µF
2.2k
TEST METHOD
SYMBOL SW1
I
CCQ
ON
G
VO
ON
G
VC
OFF
THD
OFF
V
OUT
OFF
V
NI-1
OFF
V
NI-2
ON
∆V
ALC
OFF
CB
ALC
OFF
SW2
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
SW3
1
1
1
1
1
1
1
2
2
SW4
ON
ON
ON
ON
ON
ON
ON
OFF
OFF
SW5
3
1
1
1
1
2
3
1
1
220
SW6
ON
ON
ON
ON
ON
ON
ON
OFF
OFF
SW 6
SW8
3
3
3
3
3
3
2
3
1
SW9
1
1
1
1
1
1
1
1
2
SW10
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
SW11
ON
ON
ON
ON
ON
ON
OFF
ON
OFF
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 6
QW-R110-001.D
KA22241
TYPICAL APPLICATION CIRCUIT
channel 1
LINEAR INTEGRATED CIRCUIT
mute
ALC
channel 2
1
R1
15k
2
3
4
5
6
7
8
9
220
V
CC
=7V
R1
15k
Note: On playback, connect the time constant circuit as follows below, instead of R1 of PINS 1, 3, 7, 9, which are
used in the NAB.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 6
QW-R110-001.D
stm32/stm8
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