1W AUDIO AMPLIFIER WITH MUTE
OPERATINGVOLTAGE1.8 TO 15V
EXTERNAL MUTE OR POWER DOWN
FUNCTION
IMPROVEDSUPPLYVOLTAGEREJECTION
LOW QUIESCENTCURRENT
HIGHPOWERCAPABILITY
LOW CROSSOVERDISTORTION
TDA7233S
DESCRIPTION
The TDA7233S is a monolithic integrated circuit
in SIP 9, intended for use as class AB power amplifier with a wide range of supply voltage from
1.8V to 15V in portable radios, cassette recorders
and players.
TEST AND APPLICATIONCIRCUIT
SIP9
ORDERING NUMBER:
TDA7233S
May 1997
MUTE SWITCH CONDITION
OPEN
CLOSED
MUTE
PLAY
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TDA7233S
PIN CONNECTION
(Topview)
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
I
P
T
stg,Tj
Supply Voltage 16 V
S
Output Peak Current 1 A
O
Total Power Dissipation T
tot
=50°C1W
amb
Storage and Junction Temperature -40 to 150 °C
THERMAL DATA
Symbol Description Value Unit
R
th j-amb
R
th j-case
Thermal Resistance Junction-ambient
Thermal Resistance Junction-pins
Max
Max
70
10
°C/W
°C/W
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TDA7233S
ELECTRICALCHARACTERISTICS(VS= 6V, T
=25°C, unless otherwise specified)
amb
Symbol Parameter Test Condition Min. Typ. Max. Unit
V
S
V
O
I
d
Supply Voltage 1.8 15 V
Quiescent Output Voltage 27 V
=3V
V
S
V
=9V
S
1.2
4.2
Quiescent Drain Current PLAY 3.6 9 mA
MUTE 0.4 mA
I
b
P
O
d Distortion P
G
V
R
IN
e
N
Input Bias Current 100 nA
Output Power d = 10% f = 1kHz
V
= 12V RL=8Ω
S
V
=9V RL=4Ω
S
V
=9V RL=8
S
V
=6V RL=8Ω
S
V
=6V RL=4Ω
S
V
=3V RL=4Ω
S
V
=3V RL=8
S
= 0.5W RL=8Ω
O
f = 1KHz V
S
Ω
Ω
=9V
0.8
0.45
1.9
1.6
1
0.4
0.7
110
70
0.3 %
Closed Loop Voltage Gain f = 1KHz 39 dB
Input Resistance f = 1KHz 100 K
Total Input Noise (RS= 10KΩ) B = Curve A 2
B = 22Hz to22KHz 3
SVR Supply Voltage Rejection R
MUTE Attenuation V
= 10KΩ f = 100Hz 40 45 dB
g
= 1V, f = 100Hz to 10KHz 70 dB
O
MUTE Threshold 0.6 V
I
M
MUTE Current VS= 15V 0.4 2 mA
V
V
W
W
W
W
W
mW
mW
Ω
V
µ
µV
Figure 1: OutputPowervs. Supply Voltage Figure2: SupplyVoltageRejection vs. Frequency
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TDA7233S
Figure 3:
Figure 5:
DC Output Voltagevs.SupplyVoltage
TotalDissipated Power vs. SupplyVolt-
age
Figure4:
QuiescentCurrent vs. Supply Voltage
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SIP9 PACKAGE MECHANICAL DATA
TDA7233S
DIM.
MIN. TYP. MAX. MIN. TYP. MAX.
mm inch
A 7.1 0.280
a1 2.7 3 0.106 0.118
B 23 0.90
B3 24.8 0.976
b1 0.5 0.020
b3 0.85 1.6 0.033 0.063
C 3.3 0.130
c1 0.43 0.017
c2 1.32 0.052
D 21.2 0.835
d1 14.5 0.571
e 2.54 0.100
e3 20.32 0.800
L 3.1 0.122
L1 3 0.118
L2 17.6 0.693
L3 0.25 0.010
L4 17.4 17.85 0.685 0,702
M 3.2 0.126
N 1 0.039
P 0.15 0.006
L4
L2
D
L3
L1
N
P
19
La1
e3
B3
M
d1
b1
b3
B
ec1
c2
A
SIP9
C
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TDA7233S
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the
consequences of useof suchinformation nor for any infringement of patents or other rights of third parties which may result from its use. No
license is granted by implicationor otherwise under any patent or patent rights of SGS-THOMSONMicroelectronics. Specification mentioned
in this publication are subject to change without notice. This publicationsupersedes and replaces all information previously supplied. SGSTHOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express
written approval of SGS-THOMSON Microelectronics.
1997 SGS-THOMSON Microelectronics – Printedin Italy – AllRights Reserved
SGS-THOMSON Microelectronics GROUP OF COMPANIES
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