KA22241 [UTC]
DUAL EQUALIZER AMPLIFIER WITH ALC; 双均衡器放大器ALC
| 型号： | KA22241 |
| 厂家： | 
Unisonic Technologies |
| 描述： | DUAL EQUALIZER AMPLIFIER WITH ALC |
| 文件： | 总3页 (文件大小：41K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UTC KA22241 LINEAR INTEGRATED CIRCUIT
DUAL EQUALIZER AMPLIFIER WITH
ALC
DESCRIPTION
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 VNI=1.0mV(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
SIP-9
*Built in power supply muting circuit
*Minimum number of external parts required
BLOCK DIAGRAM
channel 1
channel 2
mute
ALC
1
2
3
4
5
6
7
8
9
NF2
NF1
IN1
OUT1
GND
ALC
Vcc
OUT2
IN2
ABSOLUTE MAXIMUM RATING(Ta=25°C)
PARAMETER
Supply Voltage
SYMBOL
VCC
VALUE
UNIT
V
16
Operating Temperature
Storage Temperature
Power Dissipation
TOPR
TSTG
PD
-20 to 75
°C
-20 to 125
550
°C
mW
1
UTC UNISONIC TECHNOLOGIES CO., LTD.
QW-R110-001,A
UTC KA22241 LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS(Ta=25°C, VCC=7V, f=1KHZ, unless otherwise specified)
PARAMETER
Quiescent Circuit Current
Open Loop Voltage Gain
Closed Loop Voltage
Game
SYMBOL
ICCQ
TEST CONDITIONS
VI=0
MIN
1.5
70
TYP
3.5
80
MAX
4.5
UNIT
mA
dB
GVO
VO=0.3V
VO=0.3V
GVC
45
48
50
dB
Output Voltage
VO
THD
VNI
THD=1%
VO=0.3V
0.6
1.2
0.1
1.0
V
%
Total Harmonic Distortion
Input Noise Voltage
0.3
2.0
RO=2.2KW
mV
BW(-3dB)=20HZ¡ ª20KHZ
Input Resistance
ALC Range
RI
15
40
25
45
0
45
kW
dB
dB
¦
V¤ALC
RO=3.9KW,THD=10%
ALC Balance
CBALC VI=1mV
2.5
TEST CIRCUIT
UTC KA22241
8
1
2
3
4
5
6
7
9
0.027
SW 2
mF
0.027
mF
SW 10
4.3k
15k
39
W
120k
SW 3
10
W
120kW
SW 9
W
4.3k
W
15k
W
3.9k
W
W
mF
10 mF
C
D
SW 8
W
39
SW 1
SW 11
SW 5
A
B
100
mF
100mF
10kW
10kW
~
~
Vcc
2
UTC UNISONIC TECHNOLOGIES CO., LTD.
QW-R110-001,A
UTC KA22241 LINEAR INTEGRATED CIRCUIT
TEST METHOD
SYMBOL
ICCQ
SW1
ON
ON
OFF
OFF
OFF
OFF
ON
SW2
OFF
OFF
ON
ON
ON
SW3
SW4
ON
ON
ON
ON
ON
ON
ON
OFF
OFF
SW5
SW6
ON
ON
ON
ON
ON
ON
ON
OFF
OFF
SW7
ON
ON
ON
ON
ON
ON
ON
ON
OFF
SW8
SW9 SW10 SW11
1
1
1
1
1
1
1
2
2
3
1
1
1
1
2
3
1
1
3
3
3
3
3
3
2
3
1
1
1
1
1
1
1
1
1
2
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
OFF
ON
ON
GVO
GVC
THD
VO
VNI-1
ON
VNI-2
OFF
OFF
OFF
VALC
CBALC
OFF
OFF
OFF
OFF
APPLICATION CIRCUIT
channel 1
channel 2
mute
ALC
1
2
R1
15kW
3
4
5
6
7
8
9
Vcc=7V
220W
R1
15kW
Note: On playback, connect the time constant circuit as follows below, instead of R1, R2 of PINS 1-3, 7-9,
which are used in the NAB.
120k
W
PIN1-3
PIN7-9
4.3k
W
0.027
mF
3
UTC UNISONIC TECHNOLOGIES CO., LTD.
QW-R110-001,A
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