CDB42428 Cirrus Logic Inc, CDB42428 Datasheet - Page 52

• Manufacturer Part Number: CDB42428
• Description: BOARD EVAL FOR CS42428 CODEC
• Manufacturer: Cirrus Logic Inc

Specifications of CDB42428

• Main Purpose: Audio, CODEC
• Embedded: Yes, FPGA / CPLD
• Utilized Ic / Part: CS42428/26/18/16
• Primary Attributes: 6 Single-Ended Analog Inputs and 8 Outputs, S/PDIF Digital Audio Transmitter and Receiver
• Secondary Attributes: Graphic User Interface
• Product: Audio Modules
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 598-1499

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6.10.3
6.10.4 SOFT VOLUME RAMP-UP AFTER ERROR (RMP_UP)
6.10.5 SOFT RAMP-DOWN BEFORE FILTER MODE CHANGE (RMP_DN)
6.11
6.11.1 INDEPENDENT CHANNEL MUTE (XX_MUTE)
B4_MUTE
7
Channel Mute (address 0Eh)
AUTO-MUTE (AMUTE)
Note:
Note:
Default = 1
0 - Disabled
1 - Enabled
Function:
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
immediate un-mute is performed in these instances.
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.
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
For best results, it is recommended that this bit be used in conjunction with the RMP_DN bit.
For best results, it is recommended that this bit be used in conjunction with the RMP_UP bit.
6
B3_MUTE
5
A3_MUTE
4
B2_MUTE
3
A2_MUTE
2
B1_MUTE
1
CS42428
A1_MUTE
DS605F1
0