TDA7563PD

18/21

10.1 Examples of bytes sequence

1 - Turn-On diagnostic - Write operation

2 - Turn-On diagnostic - Read operation

The delay from 1 to 2 can be selected by software, starting from T.B.D. ms

3a - Turn-On of the power amplifier with 30dB gain, mute on, diagnostic defeat, CD = 2%.

3b - Turn-Off of the power amplifier

4 - Offset detection procedure enable

5 - Offset detection procedure stop and reading operation (the results are valid only for the offset detection bits

(D2 of the bytes DB1, DB2, DB3, DB4).

■

The purpose of this test is to check if a D.C. offset (2V typ.) is present on the outputs, produced by input

capacitor with anomalous leackage current or humidity between pins.

■

The delay from 4 to 5 can be selected by software, starting from T.B.D. ms

Start

Address byte with D0 = 0

ACK

IB1 with D6 = 1

ACK

IB2

ACK

STOP

Start

Address byte with D0 = 1

ACK

DB1

ACK

DB2

ACK

DB3

ACK

DB4

ACK

STOP

Start

Address byte with D0 = 0

ACK

IB1

ACK

IB2

ACK

STOP

X0000000

XXX1XX11

Start

Address byte with D0 = 0

ACK

IB1

ACK

IB2

ACK

STOP

X0XXXXXX

XXX0XXXX

Start

Address byte with D0 = 0

ACK

IB1

ACK

IB2

ACK

STOP

XX1XX11X

XXX1XXXX

Start

Address byte with D0 = 1

ACK

DB1

ACK

DB2

ACK

DB3

ACK

DB4

ACK

STOP