TDA7562B Datasheet, PDF (22/30 Pages) STMicroelectronics – 4 x 46 W multifunction quad power amplifier with built-in diagnostics features

Software specifications
6
Software specifications
TDA7562B
All the functions of the TDA7562B are activated by I²C interface.
The bit 0 of the "ADDRESS BYTE" defines if the next bytes are write instruction (from μP to
TDA7562B) or read instruction (from TDA7562B to µP).
D7
D0
1
1
0
1
1
0
0
X
D8 Hex
X = 0 write to device
X = 1 read from device
If R/W = 0, the μP sends 2 "Instruction bytes": IB1 and IB2.
Table 6.
Bit
D7
D6
D5
D4
D3
D2
D1
D0
IB1
Instruction decoding bit
0
Diagnostic enable (D6 = 1)
Diagnostic defeat (D6 = 0)
Offset Detection enable (D5 = 1)
Offset Detection defeat (D5 = 0)
Front Channel
Gain = 30 dB (D4 = 0)
Gain = 16 dB (D4 = 1)
Rear Channel
Gain = 30 dB (D3 = 0)
Gain = 16 dB (D3 = 1)
Mute front channels (D2 = 0)
Unmute front channels (D2 = 1)
Mute rear channels (D1 = 0)
Unmute rear channels (D1 = 1)
CD 2% (D0 = 0)
CD 10% (D0 = 1)
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Doc ID 17984 Rev 2