TAS5731MPHPR datasheet(64/81 Pages) TI1

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TAS5731M

SLOS838C – JULY 2013 – REVISED AUGUST 2015

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10.2.1.2.4.3

Shutdown Sequence

Enter:

Write 0x40 to register 0x05.

Wait at least 1 ms + 1.3 × tstop (where tstop is specified by register 0x1A).

If desired, reconfigure by returning to step 4 of initialization sequence.

Exit:

Write 0x00 to register 0x05 (exit shutdown command may not be serviced for as much as 240 ms

after trim following AVDD/DVDD power-up ramp).

Wait at least 1 ms + 1.3 × tstart (where tstart is specified by register 0x1A).

Proceed with normal operation.

10.2.1.2.4.4

Power-Down Sequence

Use the following sequence to power down the device and its supplies:

If time permits, enter shutdown (sequence defined in Shutdown Sequence); else, in case of

sudden power loss, assert PDN = 0 and wait at least 2 ms.

Assert RESET = 0.

Drive digital inputs low and ramp down PVDD supply as follows:

•

Drive all digital inputs low after RESET has been low for at least 2 µs.

•

Ramp down PVDD while ensuring that it remains above 8 V until RESET has been low for at

least 2 µs.

Ramp down AVDD/DVDD while ensuring that it remains above 3 V until PVDD is below 6 V and

that it is never more than 2.5 V below the digital inputs.

10.2.1.3 Application Curves

space

Table 25. Relevant Performance Curves

CURVE TITLE

FIGURE

Output Power vs Supply Voltage (2.0 BTL Mode)

Figure 18

With 4

ω Load on Typical 2 Layer PCB Device May Be Thermally Limited Above 20 V

Total Harmonic Distortion + Noise vs Output Power (2.0 BTL Mode)

Figure 19

Total Harmonic Distortion + Noise vs Output Power (2.0 BTL Mode)

Figure 20

Total Harmonic Distortion + Noise vs Output Power (2.0 BTL Mode)

Figure 21

Total Harmonic Distortion vs Frequency (2.0 BTL Mode)

Figure 22

Total Harmonic Distortion vs Frequency (2.0 BTL Mode)

Figure 23

Total Harmonic Distortion vs Frequency (2.0 BTL Mode)

Figure 24

Efficiency vs Output Power (2.0 BTL Mode)

Figure 25

Crosstalk vs Frequency (2.0 BTL Mode)

Figure 26

Crosstalk vs Frequency (2.0 BTL Mode)

Figure 27

Crosstalk vs Frequency (2.0 BTL Mode)

Figure 28

Crosstalk vs Frequency (2.0 BTL Mode)

Figure 29

Power vs Supply Voltage (2.0 BTL Mode)

Figure 30

Idle Channel Noise vs Supply Voltage (2.0 BTL Mode)

Figure 31

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