KA2223
5BAND GRAPHIC EQ AMP
INTRODUCTION
The KA2223 is a monolithic integrated Circuit consisting of an
operational amplifier with five resonant Circuits and a active filter,
and it is suitable for radio-cassette tape recorder, car stereo or
music center audio systems.
16-DIP-300A
FEATURES
• Tone control with independent adjustment of each band through
an external capacitor.
• Gain control through an external variable resistor.
• Increasing the bands by adding resonant circuit or using two
KA2223 in series.
• Low noise (VNO = 7µV: Typ. Flat).
• Low distortion (THD = 0.02% Typ. f = lKHz Flat).
• Large input allowance (VI = 2.3V: Typ, VCC = 9V, f =1KHz Flat).
• Operating Supply voltage range: VCC = 5V ~ 13V
BLOCK DIAGRAM
GND
BIAS
16
15
Vcc
OUTPUT
NF
14
13
12
ORDERING INFORMATION
Device Package Operating Temperature
KA2223 16-DIP-300A
-20°C ~ +70°C
INPUT
NF5
BASE5
11
10
9
12K
10K
4.7K
_
+
47K
R2
68K
68K
68K
68K
68K 12K
5.1K
1.2K
5.1K
1.2K
5.1K
1.2K
5.1K
1.2K
5.1K
1
2
BASE1
NF1
3
4
BASE2
NF2
5
6
BASE3
NF3
Fig. 1
7
8
BASE4
NF4