软件规格
TDA75610LV
表 8. IB2
指令译码位
Bit
Current detection threshold
High th (D7 = 0)
D7
Low th (D7 =1)
D6
D5
0
Normal muting time (D5 = 0)
Fast muting time (D5 = 1)
Stand-by on - Amplifier not working - (D4 = 0)
Stand-by off - Amplifier working - (D4 = 1)
D4
D3
D2
D1
D0
Power amplifier mode diagnostic (D3 = 0)
Line driver mode diagnostic (D3 = 1)
Current Detection Diagnostic Enabled (D2 =1)
Current Detection Diagnostic Defeat (D2 =0)
Right Channel Power amplifier working in standard mode (D1 = 0)
Power amplifier working in high efficiency mode (D1 = 1)
Left Channel Power amplifier working in standard mode (D0 = 0)
Power amplifier working in high efficiency mode (D0 = 1)
If R/W = 1, the TDA75610LV sends 4 "Diagnostics Bytes" to μP: DB1, DB2, DB3 and DB4.
表9. DB1
指令译码位
Bit
D7
D6
Thermal warning 1 active (D7 = 1), Tj = 160 °C (Typ)
-
-
Diag. cycle not activated or not terminated (D6 = 0)
Diag. cycle terminated (D6 = 1)
Channel LF (CH1)
Channel LF (CH1)
Current detection IB2 (D7) = 0
Current detection IB2 (D7) = 1
D5
Output peak current < 250 mA - Open load (D5 = 1) Output peak current < 125 mA - Open load (D5 = 1)
Output peak current > 500 mA - Normal load (D5 = 0) Output peak current > 250 mA - Normal load (D5 = 0)
Channel LF (CH1)
D4
D3
Turn-on diagnostic (D4 = 0)
-
-
Permanent diagnostic (D4 = 1)
Channel LF (CH1)
Normal load (D3 = 0)
Short load (D3 = 1)
Channel LF (CH1)
Turn-on diag.: No open load (D2 = 0)
Open load detection (D2 = 1)
Offset diag.: No output offset (D2 = 0)
Output offset detection (D2 = 1)
D2
-
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DocID024173 Rev 7
STMICROELECTRONICS [ ST ]
