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TDA7495
11W+11W AMPLIFIER WITH DC VOLUME CONTROL
TDA749511W+11W AMPLIFIER WITH DC VOLUME CONTROL
11+11W OUTPUT POWER
RL = 8Ω @THD = 10% VCC = 28V
ST-BY AND MUTE FUNCTIONS
LOW TURN-ON TURN-OFF POP NOISE
LINEAR VOLUME CONTROL DC COUPLED
WITH POWER OP. AMP.
NO BOUCHEROT CELL
NO ST-BY RC INPUT NETWORK
SINGLE SUPPLY RANGING UP TO 35V
SHORT CIRCUIT PROTECTION
THERMAL OVERLOAD PROTECTION
INTERNALLY FIXED GAIN
SOFT CLIPPING
VARIABLE OUTPUT AFTER VOLUME CON-
TROL CIRCUIT
MULTIWATT 15 PACKAGE
DESCRIPTIONThe TDA7495 is a stereo 11+11W class AB
power amplifier assembled in the @ Multiwatt 15
package, specially designed for high quality
sound, TV applications.
Features of the TDA7495 include linear volume
control, Stand-by and mute functions.
BLOCK AND APPLICATION DIAGRAM
ABSOLUTE MAXIMUM RATINGS(1) Operation between -20 to 85 °C guaranteed by correlation with 0 to 70°C.
THERMAL DATA
PIN CONNECTION (Top view)
ELECTRICAL CHARACTERISTICS (Refer to the test circuit VS = 20V; RL = 8Ω, Rg = 50Ω, Tamb = 25°C).
TDA74952/12
ELECTRICAL CHARACTERISTICS (continued)
TDA7495
Figure 1a: Application Circuit.
Figure 1b: P.C.B. and Component Layout.
TDA74954/12
APPLICATION SUGGESTIONSThe recommended values of the external components are those shown on the application circuit of fig-
ure 1a. Different values can be used, the following table can help the designer. 15 19 23 27 31 VS(V)
POUT
(W)
D97AU559
Figure 2: Output Power vs Supply Voltage 4 6 8 POUT(W)
(%)
D97AU560
Figure 3: Distortion vs Output Power
TYPICAL CHARACTERISTICS: Refer to the application circuit of fig.1A Tamb = 25°C; VS = 20V; RL = 8Ω; F = 1KHz; RS = 50Ω; unless
otherwise specified.
TDA7495
D97AU561 12 14 16 18 20 22 24 VS(V)
POUT
(W)
Figure 4: Output Power vs Supply Voltage0.0 1.0 2.0 3.0 4.0 Vpin#3(V)
Gain
(dB)
D97AU563
Figure 6: gain vs Volume Control (pin #3) 1 2 3 4 Vpin#9(V)
ATT
(dB)
D97AU565
Figure 8: Stand-by Attenuation vs Vpin #9 4 6 POUT(W)
(%)
D97AU562
Figure 5: Distortion vs Output Power01234 Vpin#10(V)
ATT
(dB)
D97AU566
Figure 9: Mute Attenuation vs V pin #10 100 1K f(Hz)
SVR
(dB)
D97AU564
Figure 7: Supply Voltage vs Frequency
TDA74956/12
