TAS5805MPWPR datasheet(48/86 Pages) TI1

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TAS5805M

SLASEH5A – MAY 2018 – REVISED JULY 2018

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9.6.1.17 DIG_VOL_CTRL3 Register (Offset = 4Fh) [reset = 0x30]

DIG_VOL_CTRL3 is shown in Figure 84 and described in Table 23.

Return to Summary Table.

Figure 84. DIG_VOL_CTRL3 Register

FAST_RAMP_DOWN_SPEED

FAST_RAMP_DOWN_STEP

RESERVED

R/W

Table 23. DIG_VOL_CTRL3 Register Field Descriptions

Bit

Field

Type

Reset

Description

7-6

FAST_RAMP_DOWN_SP

EED

R/W

Digital Volume Emergency Ramp Down Frequency

These bits control the frequency of the digital volume updates when

the volume is ramping down due to clock error or power outage,

which usually needs faster ramp down compared to normal soft

mute.

00: Update every 1 FS period

01: Update every 2 FS periods

10: Update every 4 FS periods

11: Directly set the volume to zero (Instant mute)

5-4

FAST_RAMP_DOWN_ST

R/W

Digital Volume Emergency Ramp Down Step

These bits control the step of the digital volume updates when the

volume is ramping down due to clock error or power outage, which

usually needs faster ramp down compared to normal soft mute.

00: Decrement by 4 dB for each update

01: Decrement by 2 dB for each update

10: Decrement by 1 dB for each update

11: Decrement by 0.5 dB for each update

3-0

RESERVED

R/W

0000

This bit is reserved

9.6.1.18 AUTO_MUTE_CTRL Register (Offset = 50h) [reset = 0x07]

AUTO_MUTE_CTRL is shown in Figure 85 and described in Table 24.

Return to Summary Table.

Figure 85. AUTO_MUTE_CTRL Register

RESERVED

REG_AUTO_MUTE_CTRL

R/W

Table 24. AUTO_MUTE_CTRL Register Field Descriptions

Bit

Field

Type

Reset

Description

7-3

RESERVED

R/W

00000

This bit is reserved

2-0

REG_AUTO_MUTE_CTR

R/W

111

bit0:

0: Disable left channel auto mute

1: Enable left channel auto mute

bit1:

0: Disable right channel auto mute

1: Enable right channel auto mute

bit2:

0: Auto mute left channel and right channel independently.

1: Auto mute left and right channels only when both channels are

about to be auto muted.

TAS5805MPWPR Datasheet(PDF) 48 Page - Texas Instruments

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