AN3956

Operation

Doc ID 022034 Rev 1

5/14

1.5

Gain settings

Figure 4.

Jumpers J11 and J12

1.6

Single-ended or differential input

Although the TDA7491LP can be configured for both input configurations, the STEVAL-

CCA029V1 allows only the single-ended connection.

Table 2.

Configuration of jumpers J11 and J12

Gain 0 (J11)

Gain 1 (J12)

Gain (db)

Open (L)

Open (L)

20

Open (L)

Closed (H)

26

Closed (H)

Open (L)

30

Closed (H)

Closed (H)

32

J11=G0

J12=G1

J11/J12

J11/J12

Closed=H

Open=L