TDA7562 Datasheet, PDF (13/17 Pages) STMicroelectronics – MULTIFUNCTION QUAD POWER AMPLIFIER WITH BUILT-IN DIAGNOSTICS FEATURES

If R/W = 1, the TDA7562 sends 4 "Diagnostics Bytes" to µP: DB1, DB2, DB3 and DB4.
DB1
D7
Thermal warning active (D7 = 1)
D6
Diag. cycle not activated or not terminated (D6 = 0)
Diag. cycle terminated (D6 = 1)
D5
X
D4
X
Channel LF
D3
Normal load (D3 = 0)
Short load (D3 = 1)
Channel LF
D2
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)
DB2
D7
D6
D5
D4
D3
D2
D1
D0
Offset detection not activated (D7 = 0)
Offset detection activated (D7 = 1)
X
X
X
Channel LR
Normal load (D3 = 0)
Short load (D3 = 1)
Channel LR
No output offset (D2 = 0)
Output offset detection (D2 = 1)
Channel LR
No short to Vcc (D1 = 0)
Short to Vcc (D1 = 1)
Channel LR
No short to GND (D1 = 0)
Short to GND (D1 = 1)
TDA7562
13/17