TDA7495S datasheet(5/10 Pages) STMICROELECTRONICS

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TDA7495S

APPLICATION SUGGESTIONS

The recommended values of the external components are those shown on the application circuit of figure 1.

Different values can be used, the following table can help the designer.

TYPICAL CHARACTERISTICS:

Refer to the application circuit of fig.1A Tamb = 25°C; VS = 20V; RL = 8Ω; f = 1KHz; RS = 50Ω; unless oth-

erwise specified.

COMPONENT

SUGGESTION

VALUE

PURPOSE

LARGER THAN

SUGGESTION

SMALLER THAN

SUGGESTION

10K

Mute time constant

Larger mute on/off time

Smaller mute on/off time

1000

µF

Supply voltage bypass

Danger of oscillation

470nF

Input DC decoupling

Lower low frequency cutoff Higher low frequency cutoff

470nF

Input DC decoupling

Lower low frequency cutoff Higher low frequency cutoff

470

µF

Ripple rejection

Better SVR

Worse SVR

1000

µF

Output DC decoupling

Lower low frequency cutoff Higher low frequency cutoff

µF

Mute time constant

Larger mute on/off time

Smaller mute on/off time

1000

µF

Output DC decoupling

Lower low frequency cutoff Higher low frequency cutoff

100nF

Supply voltage bypass

Danger of oscillation

Figure 3. Output Power vs Supply Voltage

Figure 4. Distortion vs Output Power

VS(V)

POUT

(W)

d=10%

d=1%

RL=8Ω

D97AU559

POUT(W)

0.01

0.1

(%)

D97AU560

f=15KHz

VS=28V

RL=8Ω

f=1KHz

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