SGS Thomson Microelectronics TDA7233D, TDA7233 Datasheet
1W AUDIO AMPLIFIER WITH MUTE
OPERATINGVOLTAGE1.8 TO 15V
EXTERNAL MUTE OR POWER DOWN
FUNCTION
IMPROVEDSUPPLY VOLTAGEREJECTION
LOW QUIESCENTCURRENT
HIGHPOWERCAPABILITY
LOW CROSSOVER DISTORTION
TDA7233
TDA7233D
DESCRIPTION
The TDA7233/D is a monolithic integrated circuit
in 8 pin Minidipor SO8 package, intended for use
as class AB power amplifier with a wide range of
supply voltagefrom 1.8V to 15V in portableplayers,cordless telephonesand CellularRadios.
TEST AND APPLICATION CIRCUIT
Minidip SO8
ORDERING NUMBERS:
TDA7233 TDA7233D
Note: Switch Open = Mute
Switch Closed = Play
March 1995
This is advanced information on a new productnow in development or undergoing evaluation. Details are subjectto change without notice.
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TDA7233 - TDA7233D
ABSOLUTE MAXIMUMRATINGS
Symbol Parameter Value Unit
V
S
I
O
P
tot
T
stg,Tj
PIN CONNECTIONS (Top views)
Supply Voltage 16 V
Output Peak Current 1 A
Total Power Dissipation at T
=50°C1W
amb
Storage and Junction Temperature –40 to 150 °C
Minidip
SO8
THERMAL DATA
Symbol Parameter SO8 Minidip Unit
R
th j-amb
Thermal Resistance Junction-ambient Max. 200 100 °C/W
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TDA7233 - TDA7233D
ELECTRICAL CHARACTERISTICS (Vs=6 V, T
=25°C, unless otherwisespecified)
amb
Symbol Parameter Test Condition Min. Typ. Max. Unit
V
s
V
o
I
d
Supply Voltage 1.8 15 V
Quiescent Out Voltage 2.7 V
=3V
V
V
s
=9V
s
1.2
4.2
Quiescent Drain Current MUTE HIGH 3.6 9 mA
MUTE LOW 0.4
I
b
P
o
d Distortion P
Input Bias Current 100 nA
Output Power d = 10 % f = 1 KHz
V
=12V RL=8Ω
s
V
=9V RL=4Ω
s
V
=9V RL=8Ω
s
V
=6V RL=8Ω
s
V
=6V RL=4Ω
s
V
=3V RL=4Ω
s
V
=3V RL=8Ω
s
= 0.5 W
o
1.9
1.6
1
0.4
0.7
110
70
0.3 %
f = 1 kHz
R
=8Ω
L
V
=9V
s
G
v
R
IN
e
N
Closed Loop Voltage Gain f = 1 kHz 39 dB
Input Resistance f = 1 kHz 100 KΩ
Total Input Noise
(R
=10kΩ)
s
B = Curve A 2 µV
B = 22 Hz to 22 kHz 3
SVR Supply Voltage Rejection f = 100 Hz, R
MUTE Attenuation V
= 1 V f = 100 Hz to 10 kHz 70 dB
o
=10KΩ 45 dB
g
MUTE Threshold 0.6 V
I
M
MUTE Current VS= 15V 0.4 mA
V
V
W
W
W
W
W
mW
mW
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