TDA7565

Examples of bytes sequence

15/18

5

Examples of bytes sequence

1 - Turn-on of the power amplifier with 26 dB gain, mute on, diagnostic defeat, high eff.

mode, voltage converter disabled.

2 - Turn-off of the power amplifier

4 - Offset detection procedure start

5 - Offset detection procedure stop and reading operation.

●

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 leakage current or humidity between pins.

●

The delay from 3 to 4 can be selected by software, starting from 1 ms

Start

Address byte with D0 = 0

ACK

IB1

ACK

IB2

ACK

STOP

XX00X000

0XX1XX10

Start

Address byte with D0 = 0

ACK

IB1

ACK

IB2

ACK

STOP

XXXXXXXX

XXX0XXX0

Start

Address byte with D0 = 0

ACK

IB1

ACK

IB2

ACK

STOP

XX1XX11X

XXX1XXX0

Start

Address byte with D0 = 1

ACK

DB1

STOP