TDA7233S
1W AUDIO AMPLIFIER WITH MUTE
OPERATINGVOLTAGE1.8 TO 15V
EXTERNAL MUTE OR POWER DOWN
FUNCTION
IMPROVEDSUPPLYVOLTAGEREJECTION
LOW QUIESCENT CURRENT
HIGHPOWER CAPABILITY
LOW CROSSOVER DISTORTION
DESCRIPTION
The TDA7233S is a monolithic integrated circuit
in SIP9, intended for use as class AB power am-
plifier with a wide range of supply voltage from
1.8V to 15V in portable radios, cassette recorders
and players.
May 1997
TEST AND APPLICATION CIRCUIT
SIP9
ORDERING NUMBER: TDA7233S
MUTE SWITCH CONDITION
OPEN
CLOSED MUTE
PLAY
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ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
VSSupply Voltage 16 V
IOOutput Peak Current 1 A
Ptot TotalPower Dissipation Tamb =50
°
C1W
T
stg,T
jStorage and Junction Temperature -40 to 150 °C
THERMAL DATA
Symbol Description Value Unit
Rth j-amb
Rth j-case Thermal Resistance Junction-ambient
Thermal Resistance Junction-pins Max
Max 70
10 °C/W
°C/W
PIN CONNECTION (Topview)
TDA7233S
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ELECTRICAL CHARACTERISTICS (VS= 6V, Tamb =25°C, unlessotherwise specified)
Symbol Parameter Test Condition Min. Typ. Max. Unit
VSSupply Voltage 1.8 15 V
VOQuiescent Output Voltage 27 V
VS=3V
V
S=9V 1.2
4.2 V
V
IdQuiescent Drain Current PLAY 3.6 9 mA
MUTE 0.4 mA
IbInput Bias Current 100 nA
POOutput Power d = 10% f = 1kHz
VS= 12V RL=8Ω
V
S=9V R
L=4Ω
V
S=9V R
L=8
Ω
V
S=6V R
L=8Ω
V
S=6V R
L=4Ω
V
S=3V R
L=4Ω
V
S=3V R
L=8
Ω
0.8
0.45
1.9
1.6
1
0.4
0.7
110
70
W
W
W
W
W
mW
mW
d Distortion PO= 0.5W RL=8Ω
f = 1KHz VS=9V 0.3 %
GVClosed Loop Voltage Gain f = 1KHz 39 dB
RIN Input Resistance f = 1KHz 100 KΩ
eNTotal Input Noise (RS= 10KΩ) B = Curve A 2 µV
µV
B = 22Hz to 22KHz 3
SVR Supply Voltage Rejection Rg= 10KΩf = 100Hz 40 45 dB
MUTE Attenuation VO= 1V, f = 100Hz to 10KHz 70 dB
MUTE Threshold 0.6 V
IMMUTE Current VS= 15V 0.4 2 mA
Figure 1: OutputPower vs. Supply Voltage Figure2: SupplyVoltage Rejection vs. Frequency
TDA7233S
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Figure 3: DC Output Voltage vs. Supply Voltage Figure4: QuiescentCurrent vs. Supply Voltage
Figure 5: TotalDissipated Power vs. SupplyVolt-
age
TDA7233S
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D
N
M
L1
19
d1
L3
L2
La1
e3 b3
b1
B
ec1
A
c2 C
P
L4
SIP9
B3
SIP9 PACKAGE MECHANICAL DATA
DIM. mm inch
MIN. TYP. MAX. MIN. TYP. MAX.
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
TDA7233S
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Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the
consequences of use of such information 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 patentrights of SGS-THOMSON Microelectronics. Specification mentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-
THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express
written approval of SGS-THOMSON Microelectronics.
1997SGS-THOMSON Microelectronics – Printedin Italy – AllRights Reserved
SGS-THOMSON Microelectronics GROUP OF COMPANIES
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TDA7233S
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