AN3385

Operation

Doc ID 018702 Rev 1

5/15

1.4

Powering up

Before powering up the demonstration board, ensure that the TDA7492 is in standby and

mute conditions and the gain is set to the desired value (default 21.6 dB) and verify the

dedicated switches and jumpers.

Figure 3.

Standby and mute control

Table 2.

Standby and mute settings

STBY (S1)

Mute (S2)

Status

L

L

STBY

L

H

STBY

HL

MUTE

HH

PLAY

Table 3.

Gain settings

Gain 0 (J5)

Gain 1 (J6)

Gain (dB)

Open (L)

Open (L)

21.6

Open (L)

Closed (H)

27.6

Closed (H)

Open (L)

31.1

Closed (H)

Closed (H)

33.6

AM045277v1