TDA7565_08 Datasheet, PDF (15/18 Pages) STMicroelectronics – Quad power amplifier with built-in voltage converter

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
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