UTC 2206
LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO. LTD
1
QW-R107-018,A
2.5W DUAL AUDIO POWER AMP
DESCRIPTION
The 2206 is a monolithic integrated circuit consisting
of a 2-channel power amplifier .It is suitable for stereo and
bridge amplifier application of radio cassette tape
recorders.
FEATURES
*High output power
Stero:P
o
=2.3W(Typ) at V
cc
=9V,R
L
=4.
Bridge: P
o
=4.7W(Typ) at V
cc
=9V,R
L
=8
.
*Low switching distortion at high frequency.
*Small shock noise at the time of power on/off due to a
built-in muting circuit
*Good ripple rejection due to a built-in ripple filter.
*Good channel separation.
*Closed loop voltage gain fixed 45dB(Bridge:51dB) but
availability with external resistor added.
*Minimum number of external parts required .
*Easy to design radiator fin.
DIP-12H
BLOCK DIAGRAM
7
8
9
Fin
10
11
12
6
5
4
Fin
3
2
1
PRE GND
IN1
NF1
POWER GND
BS1
OUT1
V
CC
SHOCK NOISE
REJECTOR
INPUT
AMP1
INPUT
AMP2
-
-
+
+
OUT
AMP 1
OUT
AMP 2
RIPPLE FILTER
R.R
IN2
NF2
POWER GND
BS2
OUT2
BTL OUT
UTC 2206
LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO. LTD
2
QW-R107-018,A
ABSOLUTE MAXIMUM RATINGS (Ta=25)
CHARACTERISTICS SYMBOL
RATING
UNIT
Supply Voltage
Vcc
15
V
Power Dissipation
P
D
4
*
W
Operating Temperature
T
OPR
-20+70
Storage Temperature
T
STG
-40+150
*Fin is soldering on the PCB
ELECTRICAL CHARACTERISTICS
(Ta=25,Vcc=9V,f=1Khz R
G
=600,unless otherwise specified)
CHARACTERISTICS SYMBOL
TEST
CONDITION
MIN
TYP
MAX
UNIT
Operating Supply Voltage
Vcc
9
11
V
Quiescent Circuit Current
Icc
Q
Vi=0,Stereo
40
55
mA
Stereo
43 45 47 dB
Closed Loop Voltage Gain
GVC
Bridge
Vi=-45dBm
49 51 53 dB
R
L
=4,THD=10%
1.7 2.3 W
Stereo
R
L
=8,THD=10%
1.3 W
Output Power
Po
Bridge
R
L
=8,THD=10%
4.7 W
Channel
Balance CB
Stereo
-1
0
1
dB
Stereo
0.3
1.5
%
Total Harmonic Distortion
THD
Bridge
Ro=250mW,R
L
=4
0.5 %
Input Resistance
R
I
21
30
K
Ripple Rejection Ratio
RR
Stereo,R
G
=0,Vr=150mW,f=100Hz
40 46 dB
Stereo,R
G
=0
0.3
1.0
mW
Output Noise Voltage
V
NO
Stereo, R
G
=10K
0.5
2.0
mV
Cross Talk
CT
Stereo, R
G
=10K,Vo=0dBm
40 55 dB
APPLICATION INFORMATION
1. Stereo application
8
9
11
R
F
C1
R2
CH1
+
-
i i) V ar i ab l e volt ag e g ain
+
i ) F i xed volt ag e g ain
( P in 9 c on n ec t ed t o G N D d ir ec t l y)
R
1
R
2
( R
f
an d C
1
c on n ec t ed wit h p i n 9 )
R
1
G v= 2 0 l og
( d B )
G v= 2 0 log
R
2
+ R
F
( d B )
UTC 2206
LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO. LTD
3
QW-R107-018,A
2. Bridge application
8
9
R
F
C1
CH1
+
-
11
11
5
4
1
INPUT
R
2
R
1
C
4
C
6
RL
5K
50
CH2
+
-
R
4
R
3
C
2
i ) Fi x ed v oltage gai n (Pi n 9 connected to GND directly)
Gv =20 log
+ 6(dB)
R 1
R2
i i) Vari able v oltage gai n RF and C1 connected with pin 9)
Gv =20 log
R2+RF
+ 6(dB)
R1
+
+
+
APPLICATION CIRCUIT
1.Stereo Amplofier
*polyester film capacltor
7
8
9
6
5
4
3
2
1
INPUT 1
INPUT2
10
11
12
Fin
Fin
C10
100/16V
+
+
+
C9
C8
100/16V
*C7
0.15
RL
470/6V
OUTPUT 1
OUTPUT2
+
100/16V
+
_
_
+
C2
+
470/16V
C4
+
RL
VCC
C5
1000/16V
+
+
0.15
100/16V
C1
*C3
100
16V
UTC 2206
LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO. LTD
4
QW-R107-018,A
2.Bridge Amplifier
VCC
7
8
9
6
5
4
3
2
1
INPUT
10
11
12
Fin
Fin
C10
100/16V
+
C9
100/16V
C8
100/16V
*C7
0.15
470/16V
*polyester film capacltor
C1
100/16V
100/16V
C2
+
470/
16V
C4 +
RL
1000/16V
+
+
C3
C6
2206
+
+
C5
+
0.15
+
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