Service manual
Schematic Diagrams
B - 36 Audio Codec ALC892, DMIC
B.Schematic Diagrams
Audio Codec ALC892, DMIC
Sheet 35 of 63
Audio Codec
ALC892, DMIC
L63
*HCB1608KF-121T25
C488
*0.1u_16V_Y5V_04
3.3V
SPK_EN
Q47
MTN7002ZHS3
G
DS
U22D
74LVC08PW
12
13
11
147
U22B
74LVC08PW
4
5
6
147
HP_PLUG54
R424 100K_04
U22C
74LVC08PW
9
10
8
147
U22A
74LVC08PW
1
2
3
147
KBC_MUTE#33
R472 10M_04
HDA_RST#25
PCH_MUTE#25
3.3VS
3.3VS
3.3VS
3.3VS
3.3VS
HP_EN
SPK_EN 36,54
AUDG
Layout Note:
C897
0.1u_16V_Y5V_04
(1)MIC1-L (U31.21) (2)MIC1-R (U31.22)
(3)LINE-L (U31.23) (4)LINE-R (U31.24)
©P³ò¥²¶·¥]ÂÐ AUDG, ¥B¾¨¶qÁקK¸ó¶V
+5VS & +VIN plane.
C525 10u_10V_Y5V_08
12/07
DIGITAL MIC
port F
7.1CH
port H
Max: 0.5inch
port D
EMI
port B
port E
port A
port G
port C
SIDE_R_C
SIDE_L_C
C483 *0.1u_16V_Y 5V_04
C487 *10u_10V_X5R_08
AUDG
HDA_BIT_CLK
CAP
Layout note:
Headphone°T¸¹½u¼e > 10mils
¶ZÂ÷phone jack¶V»·
½u®|´N¥²¶·¶V¼e
R/L¥²¶·¥]ÂÐGND¥B¶¡¶Z¬°3*½u¼e
C896 *22p_50V_NPO_04
3*R/L½u¼eHP-R
HP-L
GND
GND
R719 75_04
R717 75_1%_04
R438 4.7K_04
J_DMIC1
85204-04001
1
2
3
4
SURR-OUT-L
C489 4.7u_6.3V_X5R_06
6-20-43130-104
SURR-OUT-R
R106
*15.8K_1%_04
SURR-OUT-R 36
SURR-OUT-L 36
C879 4.7u_6.3V_X5R_06
C479 4.7u_6.3V_X5R_06
R113 0_04
C871
*680p_50V_X7R_04
R454 47K_04
R470 22_04
C516
0.1u_16V_Y5V_04
R720 75_1%_04
R416
2.2K_04
C894
10u_10V_Y5V_08
C898
0.1u_16V_Y5V_04
C870
*680p_50V_X7R_04
R716 75_04
R405
2.2K_04
C506 1u_10V_Y5V_06
C883 4.7u_6.3V_X5R_06
C139
*0.1u_16V_Y5V_04
C505 *100p_50V_NPO_04
AUDGAUDG
AUDG
AUDG
MI C1- L
DMIC_CLK
Support 7.1 channel
AUDG
L90
HCB1608KF-121T25
L89 HCB1005KF-121T20
FRONT_R 36
R419 0_04
FRONT_L 36
R442 0_04
GND and AUDG space is
60mils ~ 100mils
Q27
*AO3409
G
D S
Layout note:
L34
FCM1005KF-121T03
R722 *5.1K_1%_04
Close to Codec
C880 *100p_50V_NPO_04
AUDG
R715 20K_1%_04
AUDIO_CEN 36
SPDIF_OUT16,54
40mil
MI C1 -L54
HDA_SDIN025
KBC_BEEP33
HDA_SPKR25
MIC1-R54
HDA_SDOUT25
HDA_RST#25
HDA_BIT_CLK25
Layout Note:
Very close to CODEC
MIC1-VREFO-L
MIC1-VREFO-L
40mil
DMIC_CLK
U43 pin 1 ~ pin 11 and pin 47 and pin 48
are Digital signals.
The others are Analog signals.
DMIC_DATA
Close to codec
Layout Note:
SUSB#18,25,33,46,49
Q28
*MTN7002ZHS3
G
DS
5V
C860
22u_6.3V_X5R_08
L60 H CB1005KF-121T20
Connect standby power(for pop noise)
VDD5
D13
*RB751V
A C
L61 *HCB1005KF-121T20
HP_OUT_L
HP_OUT_R
R756 75_04
R462 75_04
DMIC_DATA
R464 *100K_04
LINE-IN_L 54
MIC2-VREF
HDA_SY NC25
LINE-IN_R 54
3.3VS_DMIC
EAPD
MIC1-VREFO-R
JD_SENSE_A
3.3VS
3.3VS_AUD
C134
47p_50V_NPO_04
LEF_OUT 36
3.3VS
MI C1 -R
MIC1-VREFO-R
L35
FCM1005KF-121T03
40mil
DMIC is 50ohm
AUDG
C869 0.1u_16V_Y5V_04
VREF_CODEC
5VS_AUD
AUD G
C497
10u_10V_Y5V_08
AUDG
JD_SENSE_B
JD_SENSE_A54
C495
*10u_10V_Y5V_08
CAP
C464 2.2u_6.3V_X5R_06
MI C1 -R
C129
47p_50V_NPO_04
MI C1 -L
DIGITAL
ANALOG
U39
ALC892
DVDD1
1
GPIO0/DMIC-CLK
2
GPIO1/DMIC-DATA
3
DMIC_DAT
4
SDATA-OUT
5
BIT-CLK
6
DVSS2
7
SDATA-IN
8
DVDD2
9
SYNC
10
RESET#
11
PCBEEP
12
Sense A
13
FR_HP-L
14
FR_HP-R
15
MIC 2-L
16
MIC 2-R
17
CD-L
18
CD-GND
19
CD-R
20
MIC 1-L
21
MIC 1-R
22
LINE1-L
23
LINE1-R
24
AVSS1
26
VREF
27
VREFOOUT-B_L
28
LDO_IN
29
VREFOUT-F_L
30
VREFOUT-E
31
VREFOUT-B_R
32
CAP
33
Sense B
34
FRONT-OUT-L
35
FR ONT-OUT-R
36
NC
37
SURR-OUT-L
39
JDREF
40
SURR-OUT-R
41
AVSS2
42
CENTER
43
LFE
44
SIDE-L
45
SIDE-R
46
SPDI FI/EAPD
47
SPDIFO
48
AVDD2
38
AVDD1
25
C
A
A
D17
BAT54CW(lision)
1
2
3
BluRay content
protection
SIDE_R_C
SIDE_L_C
BEEP
C504 10u_6.3V_X5R_08 R434 75_1%_04
C508 10u_6.3V_X5R_08
SIDE_R 54
SIDE_L 54
R444 75_1%_04
5VS
AUDI O_LDO_IN
L64 *HCB1005KF-121T20
0715-J
Modify
3.3VS_DMIC
D03-1012J
5VS¡÷VDD5
+
C895 *220u_6.3V_6.3*6.3*4.2
+
C887 *220u_6.3V_6.3*6.3*4.2
HP-L 54
HP-R 54
D16 *RB751S-40C2
AC
D03-1013J
Add 4.7u
C1057 4.7u_6.3V_X5R_06
C1056 4.7u_6.3V_X5R_06
EAPD
JD_SENSE_B54