9/15

TDA7296

Figure 19. Turn ON/OFF Suggested Sequence

In addition to the overload protection described above, the device features a thermal shutdown circuit

which initially puts the device into a muting state (@ Tj = 145°C) and then into stand-by (@ Tj = 150°C).

Full protection against electrostatic discharges on every pin is included.

5.3 Other Features

The device is provided with both stand-by and mute functions, independently driven by two CMOS logic

compatible input pins.

The circuits dedicated to the switching on and off of the amplifier have been carefully optimized to avoid

any kind of uncontrolled audible transient at the output.

The sequence that we recommend during the ON/OFF transients is shown by Figure 19.

The application of figure 20 shows the possibility of using only one command for both st-by and mute func-

tions. On both the pins, the maximum applicable range corresponds to the operating supply voltage.

PLAY

OFF

ST-BY

MUTE

MUTE

ST-BY

OFF

D93AU013

5V

5V

+Vs

(V)

+35

-35

VMUTE

PIN #10

(V)

VST-BY

PIN #9

(V)

-Vs

VIN

(mV)

IP

(mA)

VOUT

(V)