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TDA7575B Datenblatt(PDF) 22 Page - STMicroelectronics

Teilenummer TDA7575B
Bauteilbeschribung  2 x 75W multifunction dual-bridge power amplifier with integrated digital diagnostics
PDF  32 Pages
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7575B Datenblatt(HTML) 22 Page - STMicroelectronics

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Software specifications
TDA7575B
22/32
6.1
Examples of bytes sequence
1 - Turn-On diagnostic - Write operation
L
2 - Turn-On diagnostic - Read operation
The delay from 1 to 2 can be selected by software, starting from T.B.D. ms
3a - Turn-On of the power amplifier with mute on, diagnostic defeat.
3b - Turn-Off of the power amplifier
4 - Offset detection procedure enable
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).
●
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 T.B.D. ms
Start
Address byte with D0 = 0
ACK
IB1 with D6 = 1
ACK
IB2
ACK
STOP
Start
Address byte with D0 = 1
ACK
DB1
ACK
DB2
ACK
STOP
Start
Address byte with D0 = 0
ACK
IB1
ACK
IB2
ACK
STOP
X000XXXX
XXX1XX1X
Start
Address byte with D0 = 0
ACK
IB1
ACK
IB2
ACK
STOP
X0XXXXXX
XXX0XXXX
Start
Address byte with D0 = 0
ACK
IB1
ACK
IB2
ACK
STOP
XX1XX1XX
XXX1XXXX
Start
Address byte with D0 = 1
ACK
DB1
ACK
DB2
ACK
STOP



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