TDA7498L View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

TDA7498L

80 watt + 80 watt dual BTL class-D audio amplifier

STMicroelectronics 

TDA7498L

Applications information

The protection functions of the TDA7498L are enabled by pulling down the voltages of the

STBY and MUTE inputs shown in Figure 21. The input current of the corresponding pins

must be limited to 200 µA.

Table 7. Mode settings

Standby

Mute

Mode

L (1)

H (1)

STBY

Play

H

1. Drive levels defined in Table 6: Electrical specifications on page 9

Figure 21. Standby and mute circuits

MUTE

X (don’t care)

L

H

Standby

3.3 V

0V

Mute

3.3 V

0V

R2

30 kΩ

R4

30 kΩ

C7

2.2 µF

C15

2.2 µF

STBY

TDA7498L

MUTE

Figure 22. Turn on/off sequence for minimizing speaker “pop”

Doc ID 16504 Rev 3

19/27

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