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< 6-1-1-1_Codec_WCD9302 >
CODEC_RESET_N
R6100
0
PMIC_AUDIO_REF_CLK
QMC Recommanded :
Do not connect HPH_REF on near WCD9302
HPH_REF
Connect this line to the earjack to reduce headset crosstalk.
MIC_IN3_N
EAR_MIC_JACK
MIC_IN2_N
MIC_IN1_N
R6105
20K
EAR_SENSE_JACK
Connect this GND to inner GND layer directly.
CCOMP is used for CODEC reference voltage generating,
and LDO_HI_CAP is used for MICBias.
So do not connect this gnd to other ground on out layer.
MIC_BIAS_2
+1V8_VREG_L6
SLIMBUS_CLK
SLIMBUS_DATA
CODEC_INT
Note: The WCD9302 ingetrates IEC ESD protection inernally. (8 kV contact and 15 kV air discharge)
<4-9-1-2-1_5V_BOOST_
TPS61256A_AUDIO_EXTERNAL>
Rev_0.3
1.0mm
+VPWR
C4940
4.7u
CDC_BOOST_5V_EN
< 6-7-1_Speaker >
FB6610
1000
L6611
SPK_P
FB6609
1000
L6612
SPK_N
LGE Internal Use Only
5
35
GND1
VDD_VBAT
33
19
MODE
VDD_DIG
8
TP6106
RESET_N
27
VDD_TX_RX
29
MCLK
Remove C6100 to reduce BOM.
28
GND3
WCD9302 MICBias has high PSRR and VDD_VBAT pin is only used to MICBias.
44
MIC_IN1_P
MIC1_INP
39
26
MIC_IN1_N
MIC1_INM
EAROP
47
31
MIC2_INP
EAROM
53
MIC_IN2_N
MIC2_INM
38
16
MIC_IN3_P
MIC3_INP
HPH_L
43
17
MIC_IN3_N
MIC3_INM
HPH_REF
42
21
MIC4_INP
HPH_R
41
MIC4_INM
52
36
NC3
LINE_OUT1
46
32
NC1
LINE_OUT2
37
3
MBHC_HSDET
VDD_BUCK
Make star route to BUCK_VOUT1 and 2 from C6104.
U6100
C6103
1u
22
13
CCOMP
BUCK_VSW
WCD9302
C6106
0.1u
34
6
LDO_HI_CAP
BUCK_VOUT1
12
BUCK_VOUT2
54
MIC_BIAS1
MIC_BIAS_1
48
7
MIC_BIAS2
GND_BUCK
51
NC2
23
11
C6107
1u
GND_CFILT
-NCP_VNEG
10
2
VDD_IO
NCP_C1P
C6108
1
(DGMS Guide)
-NCP_C1M
1u
25
GND2
49
SPKR_DRVP
20
50
SLIMBUS_CLK/I2C_SCL
SPKR_DRVM
30
SLIMBUS_DATA/I2C_SDA
45
VDD_SPKDRV
14
I2S_WS
15
55
I2S_SCK
GND_SPKDRV_1
24
40
DMIC0_DATA/TX_I2S_SD0
GND_SPKDRV_2
9
DMIC0_CLK/RX_I2S_SD0
4
18
INTR
GND4
1. Pin 18, 23 and pin 40 should be connected to main GND directly.
2. Pin 55 should be connected to the GND side of C680 and directly
connected to the main GND with dedicated vias.
You may subtract the external ESD components (The pins of HPH L/R, EAR P/M and SPK L/R)
L4940
1u
1.0mm
A3
A1
+5V0_SPK_BOOST
VIN
VOUT1
A2
U4940
VOUT2
B3
EN
C4941
Change 22u CAP to TANTAL
22u
For Removing Shieldcan Insulator
RCV_P
RCV_N
Rev_0.4
ANT10003
EAG63613001
82n
FEED
82n
FEED
ANT10004
EAG63613001
C6702
C6703
C-CLIP PN CHANGE 1.4 -> 2.05
DNI
DNI
(DGMS Guide)
MC-C04773-8 : For ESD Protection / Tuning points
When USE) TVS devices's Working Voltage must be greater than the Path voltage
should apply capacitor under 50pF value for ESD protection with d-class amp
Rev_0.5
< 6-6-1_Earjack >
+VPWR
+1V2_VREG_L4
+1V8_VREG_L6
C6101
C6102
0.1u
0.1u
RCV_P
RCV_N
HPH_L_OUT
HPH_REF
HPH_R_OUT
LINE_OUT_IRRC
+2V1_VSW_S4
FB6100
1000
Dedicate a ground island for the buck/NCP ground connections.
MC-C06162-1 : 1. Don't connect Positive of Tantal, TVS diode to Negative voltage if use
2. We recommend MLCC capacitor in this case.
SPK_P
SPK_N
+5V0_SPK_BOOST
Deleted at B
< 6-8-2_Receiver_TCOIL >
Rev_0.4
RCV + TCOIL
CN6450
L6450
82n
1
L6451
82n
2
D6810
D6811
DNI
DNI
(DGMS Guide)
MC-C04773-8 : For ESD Protection / Tuning points
When USE) TVS devices's Working Voltage must be greater than the Path voltage
- 175 -
EAR_MIC_JACK
HPH_L_OUT
EAR_SENSE_JACK
HPH_R_OUT
C6610
1n
R6926
FM_ANT
0
L6613
100n
GND Close to EarJack
R6617
0
HPH_REF
R6425
R6613
MIC_BIAS_2
+VPWR
2.4M
2.2K
U6600
R6424
1
S
2
330K
VCC
MIC_IN2_N
3
A
C6606
1n
< 6-9-2_2MIC >
DC GND
MAIN_MIC
MIC_BIAS_1
6
5
4
3
MIC_IN1_N
2
1
FB6920
1800
MIC_IN1_P
(DGMS Guide)
MC-C00074-11 : For ESD Protection / Tuning points
When USE) TVS devices's Working Voltage must be greater than the Path voltage
GND Close to MIC
SUB_MIC
MIC_BIAS_1
G4
6
G3
5
VDD
4
G2
3
MIC_IN3_N
G1
2
OUT
1
MIC6921
1800
MIC_IN3_P
FB6921
(DGMS Guide)
MC-C00074-11 : For ESD Protection / Tuning points
GND Close to MIC
Copyright © 2014 LG Electronics. Inc. All right reserved.
6. CIRCUIT DIAGRAM
Rev_0.4
FB6611
1800
FB6613
1800
S/W_Detect
J6600
SPK_L
FB6612
1800
SPK_R
GND
FB6600
1800
MIC
FSA5157L6X
6
B1
5
GND
4
B0
Rev_0.4
MIC6920
G4
G3
VDD
G2
G1
OUT
When USE) TVS devices's Working Voltage must be greater than the Path voltage
Only for training and service purposes
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