4.6W AUDIO POWER AMP
S1A2206D01
1
INTRODUCTION
The S1A2206D01 is a monolithic integrated circuit consisting of a 2-
channel power amplifier. It is suitable for the stereo and bridge ampli-
fier application of a radio cassette tape recorder.
FEATURES
High power output
Stereo : P
O
= 2.3 W (Typ) at V
CC
= 9 V, R
L
= 4
Bridge : P
O
= 4.7 W (Typ) at V
CC
= 9 V, R
L
= 8
Low switching distortion at high frequency
Reduced 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
Soft tone at the time of output saturation
Closed loop voltage gain fixed at 45dB (Bridge : 51 dB) but availability with external resistor added
Minimum number of external parts required
Easy-to-design radiator fin
ORDERING INFORMATION
Device
Package
Operating Temperature
S1A2206D01-H0B0
12-DIPH-300
-
20
C
-
+ 70
C
S1A2206D01-D0B0
16-DIP-300A
12-DIPH-300
16-DIP-300A
4.6W AUDIO POWER AMP
S1A2206D01
3
ELECTRICAL CHARACTERISTICS
( Ta = 25
C, V
CC
= 9V, f = 1kHz, R
G
= 600
, unless otherwise specified )
Characteristic
Symbol
Test Conditions
Min
Typ
Max
Unit
Operating Supply Voltage
V
CC
9
11
V
Quiescent Circuit Current
I
CCQ
V
I
= 0, Stereo
40
55
mA
Closed Loop Voltage Gain
G
VC
Stereo
V
I
= -45 dBm
43
45
47
dB
Bridge
49
51
53
dB
Channel Balance
CB
Stereo
-
1
0
+1
dB
Power Output
Stereo
R
L
= 4, THD = 10 %,
1.7
2.3
W
PO
R
L
= 8, THD = 10 %,
1.3
W
Bridge
R
L
= 8, THD = 10 %,
4.7
W
Total Harmonic Distortion
THD
Stereo
P
O
= 250 mW,
R
L
= 4
0.3
1.5
%
Bridge
0.5
%
Input Resistance
R
I
21
30
k
Ripple Rejection Ratio
RR
Stereo,R
G
= 0, V
I
= 150mW
f =100Hz
40
46
dB
Output Noise Voltage
V
NO
Stereo,R
G
= 0
0.3
1.0
mV
Stereo,R
G
= 10k
0.5
2.0
mV
Cross Talk
CT
Stereo,R
G
= 10k
, V
O
= 0dBm
40
55
dB
S1A2206D01
4.6W AUDIO POWER AMP
4
APPLICATION INFORMATION
1.Stereo Application
i) Fixed voltage gain
(Pin 9 connected to GND directly)
ii) Variable voltage gain
(Rf and C
1
connected with pin 9)
2. Bridge Application
i) Fixed voltage gain (Pin 9 connected to GND directly)
ii) Variable voltage gain R
F
and C
1
connected with pin 9)
+
-
8
CH1
9
11
R1
R2
INPUT
R
F
C1
11
9
1
4
5
8
9
+
+
-
CH1
+
-
CH2
+
+
+
C
2
R
3
R
4
C
6
RL
C
4
50
5K
R
1
R
2
R
F
C
1
Gv
20
R1
R2
------- dB
(
)
log
=
Gv
20
R1
R2
RF
+
---------------------- dB
(
)
log
=
Gv
20
R1
R2
-------
6 dB
(
)
+
log
=
Gv
20
R1
R2
RF
+
----------------------
6 dB
(
)
+
log
=