TAS5754M Datasheet, PDF (74/127 Pages) Texas Instruments – Digital Input, Closed-Loop Class-D Amplifier

TAS5754M
SLAS987 – JUNE 2014
Auto Mute Time for Channel A [2:0] (R/W)
Length of consecutive zero samples before the channel can be auto muted is 10.66 seconds
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00000000
-----111
8.4.2.33 P0-R60
Digital Volume Control [1:0] (R/W)
These bits control the behavior of the digital volume.
The volume for Channels A and B are independent
Channel A volume follows Channel B setting
Channel B volume follows Channel A setting
Reserved (The volume for Channels A and B are independent)
000000000
------00
------01
------10
------11
8.4.2.34 P0-R61
Channel B Digital Volume [7:0] (R/W)
These bits control the Channel B digital volume. The digital volume is 24 dB to -103 dB in -0.5 dB step.
Channel B digital volume is 24 dB
Channel B digital volume is 23.5 dB
Channel B digital volume is 23 dB.
...
Channel B digital volume is 0.5 dB
Channel B digital volume is 0 dB
Channel B digital volume is –0.5 dB
...
Channel B digital volume is –102.5 dB
Channel B digital volume is –103 dB
Reserved
00110000
00000000
00000001
00000010
...
00100000
00110000
00110001
...
11111101
11111110
11111111
8.4.2.35 P0-R62
Channel A Digital Volume [7:0] (R/W)
These bits control the Channel A digital volume. The digital volume is 24 dB to -103 dB in -0.5 dB step.
Channel A digital volume is 24 dB
Channel A digital volume is 23.5 dB
Channel A digital volume is 23 dB.
...
Channel A digital volume is 0.5 dB
Channel A digital volume is 0 dB
Channel A digital volume is –0.5 dB
...
Channel A digital volume is –102.5 dB
Channel A digital volume is –103 dB
Reserved
00110000
00000000
00000001
00000010
...
00100000
00110000
00110001
...
11111101
11111110
11111111
8.4.2.36 P0-R63
Digital Volume Normal Ramp-Down Frequency [7:6] (R/W)
00100010
These bits control the frequency of the digital volume updates when the volume is ramping down. The setting here is applied to soft mute
request, asserted by SPK_MUTE pin or P0-R3.
The frequency of the digital volume updates is every 1 F_S period
The frequency of the digital volume updates is every 2 F_S period
The frequency of the digital volume updates is every 4 F_S period
00------
01------
10------
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