TDA7563A Datasheet, PDF (29/35 Pages) STMicroelectronics – 4 x 50W multifunction quad power amplifier with built-in diagnostics feature

TDA7563A
9
Examples of bytes sequence
Examples of bytes sequence
1 - Turn-On diagnostic - Write operation
Start Address byte with D0 = 0
ACK
IB1 with D6 = 1 ACK
IB2
ACK STOP
2 - Turn-On diagnostic - Read operation
Start Address byte with D0 = 1 ACK DB1 ACK DB2 ACK DB3 ACK DB4 ACK STOP
● The delay from 1 to 2 can be selected by software, starting from 1ms
3a - Turn-On of the power amplifier with 26dB gain, mute on, diagnostic defeat, CD = 2%.
Start
Address byte with D0 = 0
ACK
IB1
ACK
IB2
ACK
X0000000
XXX1XX11
STOP
3b - Turn-Off of the power amplifier
Start
Address byte with D0 = 0
ACK
IB1
X0XXXXXX
ACK
IB2
XXX0XXXX
ACK STOP
4 - Offset detection procedure enable
Start
Address byte with D0 = 0
ACK
IB1
ACK
IB2
ACK STOP
XX1XX11X
XXX1XXXX
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).
Start Address byte with D0 = 1 ACK DB1 ACK DB2 ACK DB3 ACK DB4 ACK 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 4 to 5 can be selected by software, starting from 1ms
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