TDA7498MV 查看數據表（PDF） - STMicroelectronics

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TDA7498MV

100 W mono BTL class-D audio amplifier

STMicroelectronics 

TDA7498MV

Application information

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.

Standby

Mute

Play

Mode

Table 7: Mode settings

STBY

L (1)

H (1)

H

MUTE

X (don’t care)

L

H

Notes:

(1)Drive levels defined in

Figure 19: Standby and mute circuits

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

DocID016505 Rev 6

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