Datasheet

PCM5141, PCM5142
SLAS759A –AUGUST 2012–REVISED SEPTEMBER 2012 www.ti.com
10: Update every 4 sample periods
11: Directly set the volume to zero (Instant mute)
VEDS[1:0] 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.
Default value: 00
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
Page 0 / Register 65
Dec Hex b7 b6 b5 b4 b3 b2 b1 b0
65 41 RSV RSV RSV RSV RSV ACTL AMLE AMRE
Reset Value 1 1 1
RSV Reserved
Reserved. Do not access.
ACTL Auto Mute Control
This bit controls the behavior of the auto mute upon zero sample detection. The time length for zero detection
is set with Page 0 / Register 59.
Default value: 1
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.
AMLE Auto Mute Left Channel
This bit enables or disables auto mute on right channel. Note that when right channel auto mute is disabled and
the Page 0 / Register 65, bit 2 is set to 1, the left channel will also never be auto muted.
Default value: 1
0: Disable right channel auto mute
1: Enable right channel auto mute
AMRE Auto Mute Right Channel
This bit enables or disables auto mute on left channel. Note that when left channel auto mute is disabled and
the Page 0 / Register 65, bit 2 is set to 1, the right channel will also never be auto muted.
Default value: 1
0: Disable left channel auto mute
1: Enable left channel auto mute
Page 0 / Register 80
Dec Hex b7 b6 b5 b4 b3 b2 b1 b0
80 50 RSV RSV RSV RSV G1SL3 G1SL2 G1SL1 G1SL0
Reset Value 0 0 0 0
RSV Reserved
Reserved. Do not access.
G1SL[3:0] GPIO1 Output Selection
These bits select the signal to output to GPIO1. To actually output the selected signal, the GPIO1 must be set
to output mode at Page 0 / Register 8.
Default value: 0000
0000: off (low)
0001: DSP GPIO1 output
0010: Register GPIO1 output (Page 0 / Register 86, bit 0)
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