TAS2563RPPR datasheet(64/127 Pages) TI

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OUT_P

OUT_N

VSNS_P

VSNS_N

Figure 8-19. V-Sense Connections

I-Sense and V-Sense can be powered down by asserting the ISNS_PD and VSNS_PD register bits respectively.

When powered down, the device will return null samples for the powered down block. The IV-sense is High Pass

Filtered and the Bi-Quad filter coefficients can be changed from the default 2 Hz using the IVHPFC_N0,

IVHPFC_N1, IVHPFC_D1 registers using the equations [N, D] = butter(1, fc/(fs/2), 'high'); round(N(0)*2^31);.

These coefficients can be calculated and set using Section 8.3.1.

Table 8-79. I-Sense Power Down

ISNS_PD

SETTING

I-Sense is active

I-Sense is powered down

(default)

Table 8-80. V-Sense Power Down

VSNS_PD

SETTING

V-Sense is active

V-Sense is powered down

(default)

8.4.6 Load Diagnostics

The TAS2563 can check the speaker terminal for an open or short. This can be used to determine if a problem

exists with the speaker or trace to the speaker. The entire operation is performed by the TAS2563 and results

reported using the IRQZ pin or read over I2C bus on completion. The load diagnostics can be performed using

external audio clock or the internal oscillator.

Short Load

LDG_RES_UT

LDG_RES_LT

Open Load

Figure 8-20. Load Diagnostics

TAS2563

SLASET3B – FEBRUARY 2020 – REVISED DECEMBER 2020

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TAS2563RPPR Datasheet(PDF) 64 Page - Texas Instruments