TDA7563B Datasheet, PDF (28/33 Pages) STMicroelectronics – 4 x 50W multifunction quad power amplifier with built-in diagnostics feature

Examples of bytes sequence
9
Examples of bytes sequence
TDA7563B
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 30dB gain, mute on, diagnostic defeat, CD = 2%
.
Start
Address byte with D0 = 0
ACK
IB1
X0000000
ACK
IB2
ACK STOP
XXX1XX11
3b - Turn-Off of the power amplifier
Start Address byte with D0 = 0 ACK
4 - Offset detection procedure enable
IB1
ACK
IB2
ACK STOP
X0XXXXXX
XXX0XXXX
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 leackage current or humidity between
pins.
● The delay from 4 to 5 can be selected by software, starting from 1ms
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