TDA7565 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

TDA7565

Quad power amplifier with integrated step-up converter

STMicroelectronics 

TDA7565

5

Examples of bytes sequence

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.

Start

Address byte with D0 = 0

ACK

IB1

XX00X000

ACK

IB2

0XX1XX10

ACK STOP

2 - Turn-off of the power amplifier

Start

Address byte with D0 = 0

ACK

IB1

ACK

XXXXXXXX

IB2

XXX0XXX0

ACK STOP

4 - Offset detection procedure start

Start

Address byte with D0 = 0

ACK

IB1

ACK

IB2

ACK STOP

XX1XX11X

XXX1XXX0

5 - Offset detection procedure stop and reading operation.

Start

Address byte with D0 = 1

ACK

DB1

STOP

● 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

Doc ID 9800 Rev 5

15/19

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