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TDA7497 Fiches technique(PDF) 3 Page - STMicroelectronics

No de pièce TDA7497
Description  10W10W10W/15W TRIPLE AMPLIFIER
Download  5 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7497 Fiches technique(HTML) 3 Page - STMicroelectronics

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ELECTRICAL CHARACTERISTICS (Refer to the test circuit, VS + 14V; RL =8
Ω;Rs =50Ω;
f = 1KHz; Tamb =25
°C, unless otherwise specified.)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
VS
Supply Range
+5
+20
V
Iq
Total Quiescent Current
80
mA
PO
Output Power
d = 10%
d= 1%
10
7.5
W
W
d
Total Harmonic Distortion
PO =1W
PO = 0.1 to 5W f = 0.1 to 15KHz
0.02
0.5
%
%
CT
Cross Talk
f = 1KHz
f = 10KHz
70
60
dB
dB
SR
Slew Rate
10
V/
µs
GV
Closed Loop Voltage Gain
29
30
31
dB
∆GV
Voltage Gain Matching
0.2
dB
eN
Total Input Noise
A Curve
f = 20Hz to 22KHz
2.5
3.5
8
µV
µV
Ri
Input Resistance
15
20
K
SVR
Supply Voltage Rejection
(each channel)
fr = 100Hz; Vripple = 0.5VRMS
60
dB
Tj
Thermal Shut-down
Junction Temperature
145
°C
MUTE FUNCTION [ref: +VS]
VTMUTE
Mute / Play Threshold
-7
-6
-5
V
AM
Mute Attenuation
60
90
dB
STAND-BY FUNCTION [ref: +VS]
VTST-BY
Stand-by / Mute Threshold
-3.5
-2.5
-1.5
V
AST-BY
Stand-by Attenuation
110
dB
Iq ST-BY
Quiescent Current @ Stand-by
3
mA
Note :
(*) FULL POWER up to.VS =
±22.5V with RL =8Ω and VS = ±16V with RL =4Ω
MUSIC POWER is the maximal power which the amplifier is capable of producing across the rated load resistance (regardless of non linearity)
1 sec after the application of a sinusoidal input signal of frequency 1KHz.
COMPONENTS
RECOMMENDED
VALUE
PURPOSE
LARGER THAN
RECOMMENDED VALUE
SMALLER THAN
RECOMMENDED VALUE
R1
10K
Mute Circuit
Increase of Dz
Biasing Current
R2
15K
Mute Circuit
Vpin # 4 Shifted Downward
Vpin # 4 Shifted Upward
R3
18K
Mute Circuit
Vpin # 4 Shifted Upward
Vpin # 4 Shifted Downward
R4
15K
Mute Circuit
Vpin # 4 Shifted Upward
Vpin # 4 Shifted Downward
R5, R6
4.7
Frequency Stability
Danger of Oscillations
Danger of Oscillations
C1, C2
1
µF
Input DC
Decoupling
Higher Low Frequency
Cutoff
C3
1
µF
St-By/Mute Time
Constant
Larger On/Off Time
Smaller On/Off Time
C4, C6
1000
µF
Supply Voltage
Bypass
Danger of Oscillations
C5, C7
0.1
µF
Supply Voltage
Bypass
Danger of Oscillations
C8, C9
0.1
µF
Frequency Stability
Dz
5.1V
Mute Circuit
APPLICATIONS SUGGESTION
(Demo Board Schematic)
The recommended values of the external compo-
nents are those shown on the demo board sche-
matic. Different values can be used: the following
table can help the designer.
TDA7497
3/7


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