Diagnostics functional description

TDA7563A

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DocID14407 Rev 5

Figure 20. SVR and output behavior (case 1: without turn-on diagnostic)

Figure 21. SVR and output pin behavior (case 2: with turn-on diagnostic)

The information related to the outputs status is read and memorized at the end of the

current pulse top. The acquisition time is 100 ms (typ.). No audible noise is generated in the

process. As for SHORT TO GND / VS the fault-detection thresholds remain unchanged from

26 dB to 12 dB gain setting. They are as follows:TDA7563A

Figure 22. Thresholds for short to GND/VS