TDA7563B Datasheet, PDF (24/33 Pages) STMicroelectronics – 4 x 50W multifunction quad power amplifier with built-in diagnostics feature

Software specifications
TDA7563B
Table 7. IB2
Bit
Instruction decoding bit
D7 0
D6 0
D5
Normal muting time (D5 = 0)
Fast muting time (D5 = 1)
Stand-by on - Amplifier not working - (D4 = 0)
D4
Stand-by off - Amplifier working - (D4 = 1)
Power amplifier mode diagnostic (D3 = 0)
D3
Line driver mode diagnostic (D3 = 1)
Current Detection Diagnostic Enabled (D2 =1)
D2
Current Detection Diagnostic Defeat (D2 =0)
Right ChannelPower amplifier working in standard mode (D1 = 0)
D1
Power amplifier working in high efficiency mode (D1 = 1)
Left ChannelPower amplifier working in standard mode (D0 = 0)
D0
Power amplifier working in high efficiency mode (D0 = 1)
If R/W = 1, the TDA7563B sends 4 "Diagnostics Bytes" to μP: DB1, DB2, DB3 and DB4.
Table 8. DB1
Bit
Instruction decoding bit
D7 Thermal warning 1 active (D7 = 1), T_j =155°C
Diag. cycle not activated or not terminated (D6 = 0)
D6
Diag. cycle terminated (D6 = 1)
Channel LF
Current Detection
D5
Output peak current <250mA - Output load (D5 = 1)
Output peak current >500mA - Output load (D5 = 0)
Channel LF
D4 Turn-on diagnostic (D4 = 0)
Permanent diagnostic (D4 = 1)
Channel LF
D3 Normal load (D3 = 0)
Short load (D3 = 1)
Channel LF
Turn-on diag.: No open load (D2 = 0)
D2 Open load detection (D2 = 1)
Offset diag.: No output offset (D2 = 0)
Output offset detection (D2 = 1)
Channel LF
D1 No short to Vcc (D1 = 0)
Short to Vcc (D1 = 1)
Channel LF
D0 No short to GND (D1 = 0)
Short to GND (D1 = 1)
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