CS42428 CIRRUS [Cirrus Logic], CS42428 Datasheet - Page 41

• Manufacturer Part Number: CS42428
• Description: 114 dB, 192kHz 8-Ch CODEC WITH PLL
• Manufacturer: CIRRUS [Cirrus Logic]

5.10.4 SOFT VOLUME RAMP-UP AFTER ERROR (RMP_UP)
5.10.5 SOFT RAMP-DOWN BEFORE FILTER MODE CHANGE (RMP_DN)
5.11
5.11.1 INDEPENDENT CHANNEL MUTE (XX_MUTE)
B4_MUTE
7
Channel Mute (address 0Eh)
Default = 0
0 - Disabled
1 - Enabled
Function:
Default = 0
0 - Disabled
1 - Enabled
Function:
Default = 0
0 - Disabled
1 - Enabled
Function:
The Digital-to-Analog converters of the CS42428 will mute the output following the reception of 8192
consecutive audio samples of static 0 or -1. A single sample of non-static data will release the mute.
Detection and muting is done independently for each channel. The quiescent voltage on the output
will be retained and the MUTEC pin will go active during the mute period. The muting function is af-
fected, similar to volume control changes, by the Soft and Zero Cross bits (SZC[1:0]).
An un-mute will be performed after executing a filter mode change, after a MCLK/LRCK ratio change
or error, and after changing the Functional Mode. When this feature is enabled, this un-mute is affect-
ed, similar to attenuation changes, by the Soft and Zero Cross bits (SZC[1:0]). When disabled, an im-
mediate un-mute is performed in these instances.
Note: For best results, it is recommended that this bit be used in conjunction with the RMP_DN bit.
A mute will be performed prior to executing a filter mode or de-emphasis mode change. When this
feature is enabled, this mute is affected, similar to attenuation changes, by the Soft and Zero Cross
bits (SZC[1:0]). When disabled, an immediate mute is performed prior to executing a filter mode or
de-emphasis mode change.
Note: For best results, it is recommended that this bit be used in conjunction with the RMP_UP bit.
The Digital-to-Analog converter outputs of the CS42428 will mute when enabled. The quiescent volt-
age on the outputs will be retained. The muting function is affected, similar to attenuation changes,
by the Soft and Zero Cross bits (SZC[1:0]).
A4_MUTE
6
B3_MUTE
5
A3_MUTE
4
B2_MUTE
3
A2_MUTE
2
B1_MUTE
1
CS42428
A1_MUTE
0
41