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PDF ALC3261 Data sheet ( Hoja de datos )

Número de pieza ALC3261
Descripción FOUR CHANNEL I2S/PCM AUDIO CODEC
Fabricantes Realtek Semiconductor　
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ALC3261
(P/N: ALC3261-CG)
FOUR CHANNEL I2S/PCM AUDIO CODEC
WITH VOICE DSP
DATASHEET
(China Customer Only)
Rev. 0.91
Realtek Semiconductor Corp.
No. 2, Innovation Road II, Hsinchu Science Park, Hsinchu 300, Taiwan
Tel.: +886-3-578-0211. Fax: +886-3-577-6047
www.realtek.com

1 page




ALC3261 pdf
ALC3261
Datasheet
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MX-03H: LINE OUTPUT CONTROL ...........................................................................................................................43 
MX-04H: MONO OUTPUT CONTROL ........................................................................................................................44 
MX-0DH: IN1 INPUT CONTROL .................................................................................................................................44 
MX-0EH: IN2 INPUT CONTROL .................................................................................................................................45 
MX-0FH: INL & INR VOLUME CONTROL .................................................................................................................46 
MX-19H: DACL1/R1 DIGITAL VOLUME ...................................................................................................................47 
MX-1AH: DACL2/R2 DIGITAL VOLUME ..................................................................................................................47 
MX-1BH: DACL2/R2 MUTE/UN-MUTE CONTROL ...................................................................................................49 
MX-1CH: STEREO ADC DIGITAL VOLUME CONTROL ...............................................................................................49 
MX-1DH: MONO ADC DIGITAL VOLUME CONTROL.................................................................................................50 
MX-1EH: ADC DIGITAL BOOST GAIN CONTROL ......................................................................................................52 
MX-27H: STEREO ADC DIGITAL MIXER CONTROL...................................................................................................52 
MX-28H: MONO ADC DIGITAL MIXER CONTROL.....................................................................................................53 
MX-29H: STEREO ADC TO DAC DIGITAL MIXER CONTROL.....................................................................................54 
MX-2AH: STEREO DAC DIGITAL MIXER CONTROL ..................................................................................................54 
MX-2BH: MONO DAC DIGITAL MIXER CONTROL ....................................................................................................55 
MX-2CH: DAC DIGITAL MIXER CONTROL ...............................................................................................................56 
MX-2DH: VOICE DSP PATH CONTROL 1...................................................................................................................57 
MX-2EH: VOICE DSP PATH CONTROL 2 ...................................................................................................................57 
MX-2FH: INTERFACE DAC/ADC DATA CONTROL....................................................................................................58 
MX-3BH: RECMIXL CONTROL 1 .............................................................................................................................58 
MX-3CH: RECMIXL CONTROL 2 .............................................................................................................................59 
MX-3DH: RECMIXR CONTROL 1.............................................................................................................................60 
MX-3EH: RECMIXR CONTROL 2 .............................................................................................................................61 
MX-45H: HPOMIX CONTROL...................................................................................................................................62 
MX-46H: SPKMIXL CONTROL .................................................................................................................................62 
MX-47H: SPKMIXR CONTROL.................................................................................................................................63 
MX-48H: SPOLMIX CONTROL .................................................................................................................................64 
MX-49H: SPORMIX CONTROL.................................................................................................................................65 
MX-4AH: SPOL/RMIX GAIN CONTROL ...................................................................................................................65 
MX-4CH: MONOMIX CONTROL ..............................................................................................................................66 
MX-4DH: OUTMIXL CONTROL 1 ............................................................................................................................66 
MX-4EH: OUTMIXL CONTROL 2.............................................................................................................................67 
MX-4FH: OUTMIXL CONTROL 3 .............................................................................................................................68 
MX-50H: OUTMIXR CONTROL 1 .............................................................................................................................69 
MX-51H: OUTMIXR CONTROL 2 .............................................................................................................................70 
MX-52H: OUTMIXR CONTROL 3 .............................................................................................................................71 
MX-53H: LOUTMIX CONTROL ................................................................................................................................71 
MX-61H: POWER MANAGEMENT CONTROL 1............................................................................................................72 
MX-62H: POWER MANAGEMENT CONTROL 2............................................................................................................73 
MX-63H: POWER MANAGEMENT CONTROL 3............................................................................................................73 
MX-64H: POWER MANAGEMENT CONTROL 4............................................................................................................74 
MX-65H: POWER MANAGEMENT CONTROL 5............................................................................................................75 
MX-66H: POWER MANAGEMENT CONTROL 6............................................................................................................75 
MX-6AH: PRIVATE REGISTER INDEX.........................................................................................................................76 
MX-6CH: PRIVATE REGISTER DATA..........................................................................................................................76 
MX-70H: I2S1 DIGITAL INTERFACE CONTROL ..........................................................................................................76 
MX-71H: I2S2 DIGITAL INTERFACE CONTROL ..........................................................................................................77 
MX-73H: ADC/DAC CLOCK CONTROL 1..................................................................................................................78 
MX-74H: ADC/DAC CLOCK CONTROL 2..................................................................................................................79 
MX-75H: DIGITAL MICROPHONE CONTROL ..............................................................................................................80 
MX-80H: GLOBAL CLOCK CONTROL.........................................................................................................................81 
MX-81H: PLL CONTROL 1.........................................................................................................................................81 
MX-82H: PLL CONTROL 2.........................................................................................................................................82 
MX-83H: ASRC CONTROL 1 .....................................................................................................................................82 
Four Channel I2S Audio Codec with Voice DSP
v
Rev. 0.91

5 Page





ALC3261 arduino
ALC3261
Datasheet
List of Figures
FIGURE 1. BLOCK DIAGRAM .......................................................................................................................................................4
FIGURE 2. AUDIO MIXER PATH ...................................................................................................................................................5
FIGURE 3. DIGITAL MIXER PATH.................................................................................................................................................6
FIGURE 4. PIN ASSIGNMENTS ......................................................................................................................................................7
FIGURE 5. AUDIO CLOCK TREE .................................................................................................................................................14
FIGURE 6. PCM MONO DATA MODE A FORMAT (BCLK POLARITY=0) ..............................................................................17
FIGURE 7. PCM MONO DATA MODE A FORMAT (BCLK POLARITY=1) ..............................................................................17
FIGURE 8. PCM MONO DATA MODE B FORMAT (BCLK POLARITY=0) ..............................................................................18
FIGURE 9. PCM STEREO DATA MODE A FORMAT (BCLK POLARITY=0)..............................................................................18
FIGURE 10. PCM STEREO DATA MODE B FORMAT (BCLK POLARITY=0)..............................................................................18
FIGURE 11. I2S DATA FORMAT (BCLK POLARITY=0).............................................................................................................19
FIGURE 12. LEFT-JUSTIFIED DATA FORMAT (BCLK POLARITY=0) ........................................................................................19
FIGURE 13. 4-CHANNEL RECORDING PATH ................................................................................................................................20
FIGURE 14. 4-CHANNEL PLAYBACK PATH ..................................................................................................................................21
FIGURE 15. SPEAKER OUTPUT MODE – STEREO MODE...............................................................................................................24
FIGURE 16. DAC DRC FUNCTION BLOCK ..................................................................................................................................26
FIGURE 17. ADC AGC FUNCTION BLOCK ..................................................................................................................................26
FIGURE 18. DRC/AGC FOR PLAYBACK/RECORDING MODE.......................................................................................................27
FIGURE 19. DRC/AGC FOR NOISE GATE MODE.........................................................................................................................28
FIGURE 20. RATIO GAIN BEHAVIOR FOR SPKVDD AND AVDD ................................................................................................29
FIGURE 21. DATA TRANSFER OVER I2C CONTROL INTERFACE ...................................................................................................31
FIGURE 22. GPIO FUNCTION BLOCK ..........................................................................................................................................33
FIGURE 23. IRQ FUNCTION BLOCK.............................................................................................................................................34
FIGURE 24. JD SOURCE SELECTION ............................................................................................................................................34
FIGURE 25. POWER MANAGEMENT.............................................................................................................................................35
FIGURE 28. I2C CONTROL INTERFACE.......................................................................................................................................113
FIGURE 29. TIMING OF I2S/PCM MASTER MODE......................................................................................................................114
FIGURE 30. I2S/PCM SLAVE MODE TIMING .............................................................................................................................115
FIGURE 32. PACKAGE DIMENSION ............................................................................................................................................118
Four Channel I2S Audio Codec with Voice DSP
xi
Rev. 0.91

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