TDA7498MV

Application information

DocID016505 Rev 6

17/26

5.2

Mode selection

The three operating modes of the TDA7498MV are set by the two inputs, STBY (pin 20)

and MUTE (pin 21).

•

Standby mode: all circuits are turned off, very low current consumption.

•

Mute mode: inputs are connected to ground and the positive and negative PWM

outputs are at 50% duty cycle.

•

Play mode: the amplifiers are active.

The protection functions of the TDA7498MV are enabled by pulling down the voltages of

the STBY and MUTE inputs shown in Figure 19: "Standby and mute circuits". The input

current of the corresponding pins must be limited to 200 µA.

Table 7: Mode settings

Mode

STBY

MUTE

Standby

L

(1)

X (don’t care)

Mute

H

(1)

L

Play

H

H

Notes:

(1)

Drive levels defined in

Figure 19: Standby and mute circuits

Figure 20: Turn on/off sequence for minimizing speaker “pop”