VT1612A主板声卡芯片.docx

VT1612A主板声卡芯片.docx

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VT1612A主板声卡芯片

SYNCBIT_CLKSDATA_OUTSDATA_INRESET#VOMUTVOMUTVOMUTVOMUTVO

MUTVOMUTVOMUTVODAC

VO

MUT

S

+20dBS

MAS-TER

MONOVOL-

S

MAS-TERINPUT

OSC

AC’97DigitalInterface

VIDEOAUXMIC1MIC2

PC_BEEPPHONE

CDLINEXTL_INXTL_OUT

PCMIN

LINE_OUT

MONO_OUT

ADC

S

MUMU

MUX3D

MAS-TER

SRC

LNL/HP_OUT

SRC

S/PDIF_OUT

FRONTPCMOUT

MU

HPAMP

02h

04h

LINE_OUT_RLINE_OUT_LNCCAP2DVCC1XTL_INXTL_OUTDGND2DGND1SDATA_OUT

BIT_CLKNCAFLT2AFLT1SDATA_IN

DVCC2SYNCRESET#NCVREF_OUTVREFAGND1SPDIF_OUT

EAPD

ID0

HPP

NC

AGND2

LNL/HP_OUT_R

ID1

NC

LNL/HP_OUT_L

AVCC2

PHONE

AUX_L

AUX_R

CD_GND

VIDEO_L

VIDEO_R

CD_L

CD_R

MIC1

MIC2

LINE_IN_L

1234765363534333289101131302928272648

47

46

45

44

43

42

41

40

39

3813

14

15

16

19

18

17

20

21

22

23

MONO_OUT37

AVCC1

25

LINE_IN_R

24

PC_BEEP

12

　　　　VT1612A是台式机主板的声卡芯片。

　　　　VT1612A的内部电路框图

　　　　VT1612A的针脚封装图

　　　　VT1612A

LINEINPUTS

23LINELEVELOUTPUTS

LINE_IN_L1µF

241µFCDINPUTS

181µF191µFVIDEOINPUTS

201µF161µF

AUXILIARY

INPUTS

171µF141µF

151µF211µF

MIC2IN

221µF

131µF

PHONEMIC1IN

LINE_IN_RCD_LCD_GNDCD_RVIDEO_LVIDEO_R

AUX_L

AUX_R

MIC1MIC2PHONE12

0.1µF

PCBEEP

PC_BEEP

2.7nF

4.7kΩ

47kΩ

35

1µF

1nF

47kΩ

1kΩLINE_OUT_L

36

1µF1nF

47kΩ

1kΩLINE_OUT_R

MONOOUTPUT

37

1µF1nF

47kΩ

1kΩ

MONO_OUTVREF

CAP20.1µF

10µF

32

270pFNPOAFLT2

AFLT130

DGND2AGND1AGND2DGND1DVCC1AVCC1

DVCC2

AVCC2

XTL_INXTL_OUT

3

22pF

22pF

2

24.576MHz

46ID1ID0

45

SYNCBIT_CLKSDATA_OUTSDATA_INRESET#7

4

26

42SYNCBIT_CLKSDATA_OUTSDATA_INRESET#

1065811

MasterCodecSelect

0.1µF

10µF

0.1µF

10µF

0.1µF

10µF

0.1µF

10µF

1925385VAVCC

3.3VDVCC

270pFNPO

29

VT1612A

DC‘97

27

AVCC

39

LNL/HP_OUT_L

41

LNL/HP_OUT_R

EAPD

470.1µF

10µFSPDIF_OUT483.3VDVCC

VREFOUT

28110Ω

220Ω

RCAcoaxialS/PDIF

LHEADPHONEOUTPUT

220µF

1nF

47kΩ

RHEADPHONEOUTPUT

220µF

1nF

47kΩ

　　　　VT1612A的典型应用电路图