--1--
E92121B79-TE
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
Structure
Bipolar silicon monolithic IC
Absolute Maximum Ratings (Ta=25 C)
Supply voltage
V
CC
8
V
Operating temperature Topr
10 to +60
C
Storage temperature
Tstg
65 to +150
C
Allowable power dissipation
P
D
410 (CXA1622M) mW
1200 (CXA1622P) mW
Operating Conditions (Ta=25 C)
Supply voltage
Stereo mode
{
1.8 V to 4.5 V (CXA1622M)
1.8 V to 7.0 V (CXA1622P)
Monaural BTL mode 1.8 V to 4.5 V
(3 V recommended)
Description
The CXA1622M/P is a bipolar IC developed as
power amplifier for compact radio cassettes with
built-in pre-amplifier and power amplifier electrical
volume.
Features
Use one channel in stereo mode
EIAJ output=110 mW (Typ.), V
CC
=3 V, R
L
=8
(CXA1622M)
EIAJ output=450 mW (Typ.), V
CC
=6 V, R
L
=8
(CXA1622P)
BTL mode
EIAJ output=320 mW (Typ.), V
CC
=3 V, R
L
=8
(CXA1622M)
EIAJ output=360 mW (Typ.), V
CC
=3 V, R
L
=8
(CXA1622P)
Built-in electrical volume
Built-in ripple filter (ripple rejection 34.5 dB typ.)
Selection between stereo power amplifier and
monaural BTL power amplifier is possible by
switching Pin 2.
Applications
Suitable for audio power amplifier for stereo and
monaural radios and power amplifier for radio
cassette and Walkman.
Stereo Power Amplifier/Monaural BTL Power Amplifier
CXA1622M
CXA1622P
16 pin SOP (Plastic)
16 pin DIP (Plastic)
1000
500
P
D
-Power dissipation (mW)
Power dissipation curve
Free air
CXA1622P
CXA1622M
30
20
10
0
10
20
30
40
50
60
70
Ta-Ambient temperature (C)
CXA1622M/P
--3--
CXA1622M/P
Pin
Symbol
Equivalent circuit
Pin voltage
Description
No.
3 V
6 V
14
15
2
VOL
REG
SW
V
CC
20k
80k
GND
14
V
CC
4k
24k
15
V
CC
15k
15k
REG
2
0 to
1.25
1.25
1.25
0 to
1.25
1.25
1.25
Control gain with change in voltage
(0 to 1.25 V) to electrical volume
control pin.
Regulator pin
Mode selection SW
BTL mode when open
Stereo mode when connected to
GND
Block Diagram, Pin Configuration, and Application Circuit
1) Stereo mode
+
+
+
+
+
+
+
+
+
IN1
C2
10
C3
10
I
N
1
I
N
2
R
E
G
S
W
V
O
L
N
C
N
F
1
N
F
2
G
N
D
G
N
D
P
G
N
D
1
P
G
N
D
2
O
U
T
1
O
U
T
2
V
C
C
R
I
P
P
L
E
R1
50k
C5
3.3
C7
0.1
C9
0.1
C10
220
C12
220
V1
3V
GND
SP1
8
OUT1
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
REG
VOL
PRE+POWER1
PRE+POWER2
IN2
C1
10
C4
3.3
C5
0.1
C8
10
C11
220
GND
GND
OUT2
SP2
8
--4--
CXA1622M/P
2) BTL mode
+
+
+
+
+
+
IN
C1
C2
10
I
N
1
I
N
2
R
E
G
S
W
V
O
L
N
C
N
F
1
N
F
2
G
N
D
G
N
D
P
G
N
D
1
P
G
N
D
2
O
U
T
1
O
U
T
2
V
C
C
R
I
P
P
L
E
R1
50k
C4
3.3
C6
0.1
C8
0.1
C9
220
V1
3V
SP2
8
OUT+
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
REG
VOL
PRE+POWER1
PRE+POWER2
C3
3.3
C5
0.1
C7
10
GND
OUT
10
The input signal enters the pre-amplifier with attenuation controlled with DC at Pin 14 and then it is amplified
by the approximately 30 dB (fixed) power amplifier.
The state of Pin 2 can be used to select between stereo mode and monaural BTL mode.
The pre-power 1 and pre-power 2 output are positive phase output when Pin 2 is GND. Pre-power 2 is
inverse output of pre-power 1 output when Pin 2 is open.
Application circuits shown are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for
any problems arising out of the use of these circuits or for any infringement of third party patent and other right due to same.
--5--
CXA1622M/P
Test
No.
Test item
Circuit current
during no signal
Audio voltage
gain Lch
Audio voltage
gain Rch
Channel balance
Attenuation Lch
Attenuation Rch
EIAJ output Lch
EIAJ output Rch
Audio distortion
factor Lch
Audio distortion
factor Rch
Residual noise
level Lch
Residual noise
level Rch
Crosstalk L
R
Crosstalk R
L
BIAS SW conditions
S
1
S
2
S
3
S
4
S
5
S
6
S
7
S
8
S
9
S
10
S
11
S
12
S
13
S
14
OFF
OFF
OFF
ON
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
OFF
ON
OFF
ON
OFF
ON
ON
OFF
ON
ON
OFF
OFF
ON
OFF
ON
ON
OFF
ON
ON
OFF
OFF
ON
OFF
ON
ON
OFF
ON
OFF
OFF
ON
OFF
ON
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
ON
ON
ON
OFF
ON
ON
OFF
Input waveform and
bias description
Output waveform and
description of test method
Circuit current during no signal
V
1
=40 dBm 1 kHz
V
1
=40 dBm 1 kHz
L and R channel balance
V
1
=40 dBm 1 kHz
Output level difference between
max volume and half volume
V
1
=40 dBm 1 kHz
Output level difference between
max volume and half volume
V
1
=20 dBm 1 kHz, R
L
=8
Output level where THD=10 %
V
1
=20 dBm 1 kHz, R
L
=8
Output level where THD=10 %
V
1
=20 dBm 1 kHz, R
L
=8
Distortion factor when output is 50 mW
V
1
=20 dBm 1 kHz, R
L
=8
Distortion factor when output is 50 mW
Noise level during no signal at
max volume
Noise level during no signal at
max volume
V
1
=40 dBm 1 kHz
Rch output level when Lch is input
V
1
=40 dBm 1 kHz
Lch output level when Rch is input
Function block
Input point
Test point
Typical conditions for each bias
Min.
Typ.
Max.
Unit
1.0
3.0
8.2
mA
1.0
3.0
7.7
28
33.7
38
dB
27
32.6
36
28
33.7
38
dB
27
32.6
36
3
0
3
dB
1.5
5.8
12
dB
1.0
4.3
12
1.5
5.8
12
dB
1.0
4.3
12
350
450
mW
90
110
350
450
mW
90
110
0.7
2.5
%
0.7
2.5
%
65
60
dBm
65
60
dBm
60
56
dBm
60
56
dBm
I
1
V
4
V
5
V
4
V
5
V
4
V
5
V
4
V
5
V
4
V
5
V
4
V
5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Stereo mode
Upper : CXA1622M (V
CC
=3 V)
Lower : CXA1622P (V
CC
=6 V)
{
PDF 
ZIP