TDA7491HV datasheet(48/50 Pages) STMICROELECTRONICS

48 / 50 page

List of figures

Figure 1.

Internal block diagram (showing one channel only) ........................................... 2

Figure 2.

Pin connections (top view) ........................................................... 3

Figure 3.

Pin connections (top view) ........................................................... 5

Figure 4.

Output power vs. supply voltage ....................................................... 10

Figure 5.

THD vs. output power (1 kHz)......................................................... 10

Figure 6.

THD vs. output power (100 Hz)........................................................ 11

Figure 7.

THD vs. frequency ................................................................ 11

Figure 8.

Frequency response ............................................................... 12

Figure 9.

Crosstalk vs. frequency ............................................................. 12

Figure 10.

FFT performance (0 dB) ............................................................ 12

Figure 11.

FFT performance (-60 dB) ........................................................... 13

Figure 12.

Power supply rejection ratio vs. frequency ................................................ 13

Figure 13.

Power dissipation and efficiency vs. output power ........................................... 13

Figure 14.

Closed-loop gain vs. frequency ........................................................ 14

Figure 15.

Current consumption vs. voltage on pin MUTE ............................................. 14

Figure 16.

Attenuation vs. voltage on pin MUTE .................................................... 14

Figure 17.

Current consumption vs. voltage on pin STBY ............................................. 15

Figure 18.

Attenuation vs. voltage on pin STBY .................................................... 15

Figure 19.

Output power vs. supply voltage ....................................................... 16

Figure 20.

THD vs. output power (1 kHz)......................................................... 16

Figure 21.

THD vs. output power (100 Hz)........................................................ 17

Figure 22.

THD vs. frequency ................................................................ 17

Figure 23.

Frequency response ............................................................... 18

Figure 24.

Crosstalk vs. frequency ............................................................. 18

Figure 25.

FFT performance (0 dB) ............................................................ 19

Figure 26.

FFT performance (-60 dB) ........................................................... 19

Figure 27.

Power supply rejection ratio vs. frequency ................................................ 20

Figure 28.

Power dissipation and efficiency vs. output power ........................................... 20

Figure 29.

Closed-loop gain vs. frequency ........................................................ 20

Figure 30.

Current consumption vs. voltage on pin MUTE ............................................. 21

Figure 31.

Attenuation vs. voltage on pin MUTE .................................................... 21

Figure 32.

Current consumption vs. voltage on pin STBY ............................................. 22

Figure 33.

Attenuation vs. voltage on pin STBY .................................................... 22

Figure 34.

Output power vs. supply voltage ....................................................... 23

Figure 35.

THD vs. output power (1 kHz)......................................................... 23

Figure 36.

THD vs. output power (100 Hz)........................................................ 24

Figure 37.

THD vs. frequency ................................................................ 24

Figure 38.

Frequency response ............................................................... 25

Figure 39.

Crosstalk vs. frequency ............................................................. 25

Figure 40.

FFT performance (0 dB) ............................................................ 26

Figure 41.

FFT performance (-60 dB) ........................................................... 26

Figure 42.

Power supply rejection ratio vs. frequency ................................................ 27

Figure 43.

Power dissipation and efficiency vs. output power ........................................... 27

Figure 44.

Closed-loop gain vs. frequency ........................................................ 28

Figure 45.

Current consumption vs. voltage on pin MUTE ............................................. 28

Figure 46.

Attenuation vs. voltage on pin MUTE .................................................... 29

Figure 47.

Current consumption vs. voltage on pin STBY ............................................. 29

Figure 48.

Attenuation vs. voltage on pin STBY .................................................... 30

Figure 49.

Test board (TDA7491HV) layout ....................................................... 31

Figure 50.

Application circuit for class-D amplifier ................................................... 32

Figure 51.

Standby and mute circuits ........................................................... 33

Figure 52.

Turn-on/off sequence for minimizing speaker “pop” .......................................... 34

TDA7491HV

List of figures

DS5624 - Rev 10

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