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52 DS605F2
CS42428
6.10.3 AUTO-MUTE (AMUTE)
Default = 1
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]).
6.10.4 SOFT VOLUME RAMP-UP AFTER ERROR (RMP_UP)
Default = 0
0 - Disabled
1 - Enabled
Function:
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.
Note: For best results, it is recommended that this bit be used in conjunction with the RMP_DN bit.
6.10.5 SOFT RAMP-DOWN BEFORE FILTER MODE CHANGE (RMP_DN)
Default = 0
0 - Disabled
1 - Enabled
Function:
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.
6.11 Channel Mute (address 0Eh)
6.11.1 INDEPENDENT CHANNEL MUTE (XX_MUTE)
Default = 0
0 - Disabled
1 - Enabled
Function:
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]).
76543210
B4_MUTE A4_MUTE B3_MUTE A3_MUTE B2_MUTE A2_MUTE B1_MUTE A1_MUTE
- Features 1
- General Description 1
- TABLE OF CONTENTS 2
- LIST OF FIGURES 3
- LIST OF TABLES 5
- ABSOLUTE MAXIMUM RATINGS 6
- ANALOG INPUT CHARACTERISTICS 7
- ANALOG OUTPUT CHARACTERISTICS 9
- SWITCHING CHARACTERISTICS 11
- FORMAT 13
- DC ELECTRICAL CHARACTERISTICS 14
- 2. PIN DESCRIPTIONS 16
- DS605F2 17 17
- 18 DS605F2 18
- DS605F2 19 19
- 4. APPLICATIONS 20
- 4.3 Analog Outputs 21
- 4.3.2 Interpolation Filter 21
- 4.3.4 ATAPI Specification 22
- 4.4 Clock Generation 23
- 4.4.2 OMCK System Clock Mode 24
- 4.4.3 Master Mode 24
- 4.4.4 Slave Mode 24
- 4.5 Digital Interfaces 25
- Left Channel 27
- Right Channel 27
- 6543210987 27
- MSB LSB MSB LSB 28
- Left Channel Right Channel 29
- ADC_SDOUT 29
- 4.5.4.1 OLM Config #1 31
- CS42426 31
- 4.5.4.2 OLM Config #2 32
- 4.5.4.3 OLM Config #3 33
- 4.5.4.4 OLM Config #4 34
- 4.6.1 SPI Mode 35
- 4.6.2 I²C Mode 36
- 4.7 Interrupts 37
- 4.8 Reset and Power-Up 37
- 5. REGISTER QUICK REFERENCE 39
- 40 DS605F2 40
- Addr Function 7 6 5 4 3 2 1 0 40
- DS605F2 41 41
- 6. REGISTER DESCRIPTION 42
- 76543210 43
- RAMP_UP RAMP_DN 51
- 7. PARAMETER DEFINITIONS 60
- 8.1 ADC Input Filter 61
- 8.2 DAC Output Filter 61
- 9. APPENDIX B: PLL FILTER 62
- 9.1.3 Circuit Board Layout 63
- 64 DS605F2 64
- DS605F2 65 65
- 65
- 66 DS605F2 66
- DS605F2 67 67
- 68 DS605F2 68
- DS605F2 69 69
- 12.PACKAGE DIMENSIONS 70
- THERMAL CHARACTERISTICS 70
- 64L LQFP PACKAGE DRAWING 70
- 13.ORDERING INFORMATION 71
- 14.REFERENCES 71
- 15.REVISION HISTORY 72
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