Figure 17. Turn-ON/OFF suggested sequence

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)

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 standby (@ Tj = 150 °C).

Full protection against electrostatic discharges on every pin is included.

7.3

Other features

The device is provided with both standby 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 on the output.

The sequence we recommend during the ON/OFF transients is shown in Figure 16. Principle schematic of a

DMOS unity-gain buffer.

The application in Figure 18. Single signal standby/mute control circuit shows the possibility to use only one

command for both standby and mute functions.

On both pins, the maximum applicable range matches the operating supply voltage.

TDA7296

Other features

DS0179 - Rev 11

page 13/23