Audio Codec Alc272 - EUROCOM B7110 Service Manual

Schematic Diagrams

Audio Codec ALC272

CODEC ( ALC272-GR )
PC BEEP
MIC2_L
MIC2_R
MIC1_L
MIC1_R
Sheet 35 of 53
Layout Note:
Very close to Audio Codec
Audio Codec
ALC272
AUDG
Low mute!
21,28,31,36,39 SU SB#
24 PCH_MUTE#
EAPD_MODE
36 KBC_MU TE#
B - 36 Audio Codec ALC272
3.3VS
L30 HCB1608KF -121T25
.
BEEP C456
36 BEEP
C468 0.1u_16V_Y 5V_04
1u_6.3V_X5R_04
19 HDA_SPKR
C469 *.1U_16V_04
C470 *.1U_16V_04 C427 22p_50V_NPO_04
C471 *.1U_16V_04 R313 22_04
19,34 HDA_SDOUT
C472 *.1U_16V_04 R316 22_04
19,34 HDA_BITCLK
R318 22_04
19 HDA_SDIN0
R321 22_04
19,34 HDA_SY NC
AUDG R326 22_04
19,34 HDA_RST#
30 SPD IFO
BEEP R339 10K_04 PCBEEP_C C465 1u_16V_X5R _06
R336 1K_04
C 480 100p_50V_N PO_04 MIC_SENSE R338
30 JD_SENSE
HP_SENSE
R312
30 JD_SENSE_B
Very close to Audio Codec
C476 4.7u_6.3V_X5R_06
INT_MIC R333 75_1%_04 INT_MIC_R C477 4.7u_6.3V_X5R_06
MIC1-L R334 1K_1%_04 MIC1_L_C C478 4.7u_6.3V_X5R_06
30 MIC1-L
MIC1-R R340 1K_1%_04 MIC1_R_C C479 4.7u_6.3V_X5R_06
30 MIC1-R
Layout Note:
Codec pin 1 ~ pin 11 and pin 44 ~ pin 48
are Digital signals.
The others are Analog signals.
AMP (TPA6017)
3.3VS
FRONT-L R295 0_04
C1132 0. 1u_16V_Y5V_04
FRONT-R R296 0_04
R537
100K_04 AUD G
3.3VS
5VS
3.3VS
C990317
AUD G
C A
R538
D32 SCS355V C393
*100K_04
C A
*.1U_10V_X7R_04
D13 *SCS355V
R539 *0_04 1
4 SPK_EN
Gain Settings
2
GAIN0 GAIN1 AV(inv)
U24 0
MC74VHC1G08DF T1G
0
1
1
C412 C420
0.1u_16V_Y 5V_04
10u_10V_Y 5V_08
3.3VS_AUD
AUDG
C414 C439 C447
10u_10V_Y 5V_08 0.1u_16V_Y 5V_04
0.1u_16V_Y 5V_04
U28
2
ALC_GPIO0
GPIO0/DMIC-DATA1/2
3 27
ALC_GPIO1
GPIO1/DMIC-DATA3/4 VREF
5
AZ_SDOUT_R
6 SDATA-OUT 28
AZ_BITCLK_R MIC1-VREF O
8 BIT-CLK MIC1-VREF O
AZ_SDIN0_R
SDATA-IN
AZ_SY NC_R 10
SY NC
AZ_RST#_R 11 37
RESET# MONO-OUT
DIGITAL
EAPD_MODE 47
Very close to Audio Codec
EAPD
48 31
C433
SPDIF O1 CPVEE
45 30
C442
SPDIF O2 CBN
29
CBP
46
DMIC-CLK1/2
44
DMIC-CLK3/4
43 35
12 NC LOUT1-L 36
PCBEEP_R
PCBEEP-IN LOUT1-R
20K_1%_04 JD1 13 39
Sense A(JD1) LOUT2-L
JD2 34 41
5.1K_1%_04
Sense B(JD2) LOUT2-R
14 33
ANALOG
LINE2-L HPOUT-L
15 32
LINE2-R HPOUT-R
MIC2_L 16 23
MIC2-L LINE1-L
17 24
MIC2_R
MIC2-R LINE1-R
18
19 LIN E1-VREFO 40
MIC2-VREFO JDREF
20 MIC2-VR EFO JDREF
LIN E2-VREFO
MIC1_L 21
MIC1-L
MIC1_R 22
MIC1-R
ALC272
5VS_REAR
AUDG
10/16 change
footprinter
U27
5 6
C396 1u_6.3V_X5R_04 LIN-
LIN- PVDD
9 15
C407 1u_6.3V_X5R_04 LIN+
AUDG LIN+ PVDD
16
VDD
C397 1u_6.3V_X5R_04 RIN- 17
RIN-
C404 1u_6.3V_X5R_04 RIN+ 7 4 SPKOUTL+
AUDG
RIN+ LOUT+
8 SPKOUTL-
LOUT-
SPK_EN 19
SD#
R287 100K_04
GAIN 0 2 18 SPKOUTR+
R288 * 100K_04
GAIN0 ROUT+
GAIN 1 3
GAIN1
14 SPKOUTR-
R285 * 100K_04
ROUT-
1
R284 100K_04
GND
11
GND
13 10
AMP_BY PASS
20 GND BY PASS
21 GND 12
EXPOSED PAD NC
N7010
AUDG
INPUT IMPEDANCE
0 6 dB 90 k
1 10 dB 70 k
0 15.6 dB 45 k
1 21.6 dB 25 k
3.3VS 2,10,11,12, 13,19,20,21,22,23,24,25,26,28,29,30,32,33,36,37,42,43,46
5V 26,29,30,31,37,39,40,41,44
5VS 12,19,22,25,26,30,33,37,42,43,46
D12 *SCS551V-30
5VS_AUD C A
L24 HCB1608KF-121T25
.
U21
C473 C458
4 5
OUT VIN
0. 1u_16V_Y 5V_04 C474
1
10u_10V_Y 5V_08
SHDN#
*.1U_16V_04
3 2
BY P GND
AU DG C392
* G924
10U->1U_06
*0.1u_16V_Y5V_04
C990325
L32 *10mil_short
C413 0.1u_16V_Y 5V_04
ALC_VREF
C 449 1U_10V_06 C615 0.1u_16V_Y 5V_04
C616 0.1u_16V_Y 5V_04
C409 0.1u_16V_Y 5V_04
C424 0.1u_16V_Y 5V_04
AUDG
AUDG
A C
D16 CH355PT MIC1-VREFO-R
Layout Note:
D17 A C CH355PT MIC1-VREF O-L
Very close to Audio Codec
R332 R342
2.2u_6.3V_X5R_04 4.7K_04 4.7K_04
2.2u_6.3V_X5R_04
MIC1-L MIC1-R
AUDG C459 C481
FRONT-L *680P_50V_X7R_04 *680P_50V_X7R_04
FRONT-R
AUDG AUDG
HEADPHONE-L 30
HEADPHONE-R 30
MIC2-VREFO
NEAR CODEC
R308 20K_1%_04
R348
2.2K_04
AUDG
INT_MIC
C485
330p_50V_X7R_04
5VS
L27 HCB1005KF -121T20
C400 C403 C399 C398
*1U_10V_06 *10U_10V_08
0.1u_16V_Y 5V_04 10u_10V_Y 5V_08
AUDG
L25 FCM1005KF-121T03 SPKOUTL+_R
.
L28 FCM1005KF-121T03 SPKOUTL-_R
.
L26 FCM1005KF-121T03 SPKOUTR +_R
L29 FCM1005KF-121T03 SPKOUTR -_R
C405 C395
180p_50V_NPO_04 180p_50V_NPO_04
C608 C609
180p_50V_NPO_04 180p_50V_NPO_04
FOR EMI
C408
4.7u_6.3V_X5R_06
AUDG
5V
5VS
C402
*1U_10V_06
J_INTMIC1
2
ADD MIC C990329
1
88266-02001
PCB Footprint = 88266-2R
J_SPKL2
2
1
85205-02701
SPKOUTR+_R 30
SPKOUTR-_R 30