- 123 -
Copyright © 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
6. CIRCUIT DIAGRAM
C6939
DNI
0.1u
C6101
VA6918
DNI
R6100
?
FB6913
?
FB6914
VA6919
0.1u
C6923
2.2u
C6104
1u
C6107
1u
C6108
1u
C6103
VA6917
VA692
6
VA692
5
R6932
DNI
FEED
2108612-5
ANT6912
FEED
ANT6913
2108612-5
C6924
33p
FB6912
1800
0.1u
C6106
R6927
0
0.1u
C6110
R6105
20K
TOL=0.01
CN6912
2
1
S/W_Detect
SPK_L
SPK_R
MIC
GND
J6912
TP6107
0
R6925
L691
2
82
n
C6930
33
p
33
p
C6931
VA6922
VA6924
1800
FB6917
R6102
DNI
MIC_BIAS1
MIC_BIAS2
HPH_REF
LINE_OUT1
LINE_OUT2
GND2
MCLK
VDD_IO
RESET_N
VDD_VBAT
CCOMP
GND1
GND3
GND4
EAROP
EAROM
MODE
MIC1_INP
MIC1_INM
MIC2_INP
MIC2_INM
MIC3_INP
MIC3_INM
MIC4_INP
MIC4_INM
NC3
NC1
MBHC_HSDET
LDO_HI_CAP
NC2
GND_CFILT
SLIMBUS_CLK/I2C_SCL
SLIMBUS_DATA/I2C_SDA
I2S_WS
I2S_SCK
DMIC0_DATA/TX_I2S_SD0
DMIC0_CLK/RX_I2S_SD0
INTR
VDD_DIG
VDD_TX_RX
HPH_L
HPH_R
VDD_BUCK
BUCK_VSW
BUCK_VOUT1
BUCK_VOUT2
GND_BUCK
-NCP_VNEG
NCP_C1P
-NCP_C1M
SPKR_DRVP
SPKR_DRVM
VDD_SPKDRV
GND_SPKDRV_1
GND_SPKDRV_2
U6100
WCD9302
40
55
45
50
49
1
2
11
7
12
6
13
3
21
16
27
19
4
9
24
15
14
30
20
23
51
34
37
46
52
41
42
43
38
53
47
39
44
33
31
26
18
28
5
22
35
8
10
29
25
32
36
17
48
54
+1V8_VREG_L6
R6911
DNI
VA6920
P
G1
G2
O
MIC6913
4
3
2
1
P
G1
G2
O
MIC6912
4
3
2
1
C6937
0.1u
+VPWR
R6108
0
+2V1_VSW_S4
+1V8_VREG_L6
+5V0_SPK_BOOST
+1V2_VREG_L4
4.7u
C6109
VA6921
R6913
0
C6105
4.7u
C6938
4.7u
C6922
100n
R6101
0
R6930
DNI
TP6106
FB6100
1000
1800
FB6918
82
n
L6913
0.1u
C6929
33p
C6932
R6923
TOL=0.01
1.2K
1800
FB6915
VA6912
C6917
DNI
C6916
DNI
R6922
1K
TOL=0.01
VA691
3
VA691
4
2.4M
R6926
330K
R6921
22u
C6927
+VPWR
L6916
70n
1u
L4940
+5V0_SPK_BOOST
+VPWR
VA6916
S
1
B1
6
VCC
2
GND
5
A
3
B0
4
U6912
FSA5157L6X
VOUT1
GND1
SW
1
EN
SW
2
VOUT2
GND3
VIN
GND2
U4940
TPS61256A
C2
A3
C3
A2
B2
B3
B1
C1
A1
70n
L6917
VA691
5
DLA_1
DLA_2
DLA_3
DLA_5
DLA_6
DLA_7
DLA_4
LAYER_ALIGN
DaisyChain
C6913
560p
560p
C6914
C6919
560p
SLIMBUS_DATA
SLIMBUS_CLK
PMIC_AUDIO_REF_CLK
CODEC_INT
CODEC_RESET_N
CDC_BOOST_5V_EN
EAR_MIC_JACK
EAR_MIC_JACK
EAR_SENSE_JACK
EAR_SENSE_JACK
MIC_IN1_N
MIC_IN1_N
MIC_IN1_N
HPH_R_OUT
HPH_R_OUT
HPH_L_OUT
HPH_L_OUT
MIC_IN1_P
MIC_IN1_P
MIC_BIAS_1
MIC_BIAS_1
MIC_BIAS_1
RCV_N
RCV_N
RCV_P
RCV_P
MIC_IN2_N
MIC_IN2_N
MIC_IN2_N
MIC_BIAS_2
MIC_BIAS_2
MIC_IN3_P
MIC_IN3_P
HPH_REF
HPH_REF
HPH_REF
SPK_N
SPK_N
SPK_P
SPK_P
MIC_IN3_N
MIC_IN3_N
DAISY_CHAIN
DLA_4
DLA_7
DLA_6
DLA_5
DLA_3
DLA_2
DLA_1
Delete
< 6-9-2_2MIC >
GND Close to MIC
Delete FM ANT
MAIN_MIC
Contact type
< 6-8-1_Receiver_Only > Rev_0.3
Rev_1.0
< 6-1-1-1_Codec_WCD9302 >
Dedicate a ground island for the buck/NCP ground connections.
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.
Connect this GND to inner GND layer directly.
CCOMP is used for CODEC reference voltage generating,
and LDO_HI_CAP is used for MICBias.
SUB_MIC
So do not connect this gnd to other ground on out layer.
1.0mm
1.0mm
Rev_0.3
<4-9-1-2-1_5V_BOOST_
TPS61256A_AUDIO_EXTERNAL>
should apply capacitor under 50pF value for ESD protection with d-class amp
(DGMS Guide)
MC-C04773-8 : For ESD Protection / Tuning points
Rev_0.4
< 6-6-1_Earjack >
GND Close to EarJack
When USE) TVS devices's Working Voltage must be greater than the Path voltage
Close to EARJACK
< 6-7-1_Speaker > Rev_0.4
desense to RF/FM/GPS performance (80-NC832-41)
Remove C6100 to reduce BOM.
WCD9302 MICBias has high PSRR and VDD_VBAT pin is only used to MICBias.
Make star route to BUCK_VOUT1 and 2 from C6104.
if the 9.6 MHz MCLK output frequency is found to be causing
2. We recommend MLCC capacitor in this case.
MC-C06162-1 : 1. Don't connect Positive of Tantal, TVS diode to Negative voltage if use
R6100 can be replaced with 51 ohm and shunt cap can be installed
(DGMS Guide)
You may subtract the external ESD components (The pins of HPH L/R, EAR P/M and SPK L/R)
Note: The WCD9302 ingetrates IEC ESD protection inernally. (8 kV contact and 15 kV air discharge)
+1V8_CODEC_IO
Rev.B
Rev.B
for CS
Rev.B
Rev.B
Rev.1.0
L6914
70n
L6915
70n
C6933
1n
C6934
1n
BOM 1.0
BOM 1.0