TDA7575B Datasheet, PDF (19/32 Pages) STMicroelectronics – 2 x 75W multifunction dual-bridge power amplifier with integrated digital diagnostics

TDA7575B
6
Software specifications
Software specifications
All the functions of the TDA7575B are activated by I²C interface.
The bit 0 of the "ADDRESS BYTE" defines if the next bytes are write instruction (from μP to
TDA7575B) or read instruction (from TDA7575B to µP).
Table 5.
A6
A5
A4
A3
A2
A1
A0
R/W
Address selection
1
1
0
1
0
B
A
X
If R/W = 0, the μP sends 2 "Instruction Bytes": IB1 and IB2.
Table 6.
D7
D6
D5
D4
D3
D2
D1
D0
IB1
0
Diagnostic enable (D6 = 1)
Diagnostic defeat (D6 = 0)
Offset Detection enable (D5 = 1)
Offset Detection defeat (D5 = 0)
Gain = 26dB (D4 = 0)
Gain = 12dB (D4 = 1)
0
Mute (D2 = 0)
Unmute (D2 = 1)
0
CD 2% (D0 = 0)
CD 10% (D0 = 1)
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