LG LM-X120HM Service Manual page 102

close to IC close to connector
Note: 09-2
Note: 09-1
R0940
BEAD0902
1800ohm
AU_HPL
[8]
33
[8] AU_REFN
R0941
1800ohm BEAD0904
[8] AU_HPR
33
please add 33ohm to audio path
for performance enhance proposal
( 33ohm condition pop noise can improve 6dB )
BEAD0902 / BEAD0904
Close to BB chip to solve 91MHz/104MHz desense
for FM-desense tuning proposal
VSYS
C0929 C0928
0.1uF 4.7uF
GND
U0902
C0927
D2
C1P
2.2uF
C1 D3
C1N PVDD
C0901
D1
C2P
2.2uF
B4
3K VOP
0.047UF B1
1 2
[8] AU_LOLP C2N
C0907 R0913
220PF D4
A1 VON
INP
0.047UF 3K
C0906
1
2 A2
[8] AU_LOLN INN
R0905
C0905
A4
GPIO_SPK_EN SHDN
[3]
AW87318CSR
R0935
NF_100K
GND
GND
VSYS
C0964 C0963
NF_100nF
NF_4.7uF
U0901
C0960NF_33nF
R0971 NF_0 C1 C3 R0973 NF_0
[8,9] AU_HSN INN VON
C0961 NF_33nF
R0972 NF_0 A1 A3 R0974 NF_0
AU_HSP
[8,9] INP VOP
A2
VDD
B2 C0971 C0972
AGND NF_33PF
B1
NF_68PF NF_68PF
AGND
C2 B3
GPIO_HAC_EN CTRL PGND
[3]
R0998 AUDIO-AMP-AW8155FCR(CSP)
NF
GND
TP-1.3MM TP-1.3MM TP-1.3MM
TP0913 TP0906 TP0911
VBAT
VBAT+
J0902
SH0901
1 12
2 11
BAT_ID_PU 3 10
[9] TVS0919 C0915 C0950
BAT_TEMP [9] C0917 C0918 C0949 C0953
4 9
BAT_ID1 [9]
[9] BAT_ID2
5 8 10uF NF-0402 100PF 1500pF
PTVSHC3D4V5U 33PF
6 7
5050040810
TP0908
GND
1
R0917
SH0909
Close to connector SH0910 CS_N [8]
Rfg > 0.5W CS_P[8]
0.01
Kelvin connection
SH0902
VBAT-
VSYS
VIO18_PMU
C0955
NF_0.01uF
R0907 47K
HP_EINT 2 1 NF
[8]
R0911
2 1
[4] EINT_EAR
R0909 NF
BEAD0907
>4mil
1800ohm
C0957
AU_MICBIAS1
33PF 33PF C0956
NF_1nF NF_1nF
NF_33PF
NF_1000PF
C0922 C0921
For muti-key accuracy @
C0947 C0948
Low cost mode
GND
GND
GND
GND GND
GND GND
Close to MT6357
GND Close to MIC
1.0uF C0930
AU_VIN1_N
[8]
33PF
C0919
Note: 09-3 100PF
C0920
33PF
C0924
C0933
[8] AU_VIN1_P 1.0uF
Reserved for ACC mode
R0930
ACCDET
[8]
0
EAR_MIC_P Reserved Cap C0926 for CS/RS test
4.7uF
C0904
L0904
SPK_OUTP [12]
0R-0603
L0903
C0913 100PF
SPK_OUTN [12]
0R-0603
C0912
TVS0908
TVS0907
33PF
GND GND
Speaker Amplifier
R0923
AU_HSN
[8,9]
C0925
100PF
AU_HSP
[8,9]
AU_VON [ 9]
R0924 NF
L0901
C0932 C0931
C0973
NF_680UH
33PF 33PF
AU_VOP [ 9]
HAC
GND GND GND
TP-1.3MM TP-1.3MM TP-1.3MM
TP0912 TP0914 TP0907
NF
R0936
0
R0937
BAT_ID_PU [9]
R0908 0
[9] BAT_ID1
R0939
0
[9] BAT_ID2
R0916
1K
[9] BAT_TEMP
R0915 16.9K
TVS0909
TVS0928 TVS0931 TVS0932
C0939
C0923
NF
NF
PSED3V3V1BCSF PSED3V3V1BCSF
PSED3V3V1BCSF PSED3V3V1BCSF
battery connector
R0922
U0910
1 S B1 6
NF
2 VCC
GND 5
3 A 4
B0
NF_FSA5157L6X
R0920
0
TVS0903
1K
R0925
C0951
4.7uF
R0925 / R0926 / R0930:
Based on your system level design, if better
1.5K
audio performance is needed on your
GND
system, please reserve for ACC mode
R0926
tie together and single via to GND plane
1000PF
C0926
GND
NF
AU_VON [9]
REC0901
AU_VOP [9]
Receiver
VIO18_PMU
GPIO_BAT
[4]
GPIO_BAT_ID1[4]
Schematic design notice of "09_AUDIO" page.
GPIO_BAT_ID2 [4]
Note 09-1:
BATON [8]
TREF_PMU
Note 09-2:
Note 09-3
Note 09-4:
102
Earphone Audio
CON0901
1800ohm BEAD0901
HP_MIC [9]
HP_MIC
[9]
HP_MP3R
[9]
EAR_DET[9]
NF
2 1
1800ohm BEAD0903 HP_MP3L [9]
1800ohm BEAD0905
C0954
HP_MP3R [9]
HP_MP3L
[9]
[9] EAR_DET
2
ANT[9] [9] ANT
>4mil
AUDIO-EAR-C-11-068144B-A
TVS0904
Single via to
GND plane
GND
NF_PSED5V0H1BSF
C <= 1pF
>10mil
1 2
FM_LANT_P
[17]
ear_jack_gnd
>10mil
SH0905
>10mil
AVSS28_AUD [8]
R0927
0
SH0904
FM_LANT_N [17]
Handset Microphone-DMNR
AU_MICBIAS0
0
Analog MIC
R0900
Close to MIC Close to BB
MIC0901
R0918
4 1
POWER OUTPUT
5 2
GND GND 0
100PF
6 3
NF 0.1uF
GND GND
C0935
C0934
C0959
C0914
R0928
SPU0410LR5H-1
TVS0921
0
33PF
C0936
GND
NF_PESD3V3V1BL
GND GND
GND
together then single via to main GND
Close to MIC Close to BB
C0944
AU_VIN0_P_1 1.0uF
100PF
[12]
C0941 C0945
AU_VIN0_N_1 1.0uF
[12] Reserved for ACC mode
33PF 33PF
C0942 C0943
GND
Main Microphone-DMNR
Part # of BEAD6002, BEAD6003, BEAD6004 and BEAD6005
needs changed to "BLM18BD102SN1" for high THD
performance (-90dB) but this BOM change will results in FM
RSSI 10dB degraded .
To reserve a resistor in HPL and HPR in series connection both in order to
optimize headphone pop noise. The recommended value of this resistor is 33R.
0.1/1 uF for ACC mode (1uF for WB_AMR Speech/0.1uF for
NB_AMR Speech)
0 ohm for DCC mode
1 uF for ACC mode
0 ohm for DCC mode
1
GND
3
R_AUDIO
5
L_AUDIO
4
L_AUDIO
6
DETECT
MIC+
C0937
AU_VIN2_P
[8]
33PF 1.0uF
C0938
AU_VIN2_N
[8]
1.0uF
Note: 09-4
AU_VIN0_P [8]
AU_VIN0_N [8]
Earphone Detection Circuit
Mode R0911 R0909 R0909 R0909
Low Cost Mode NC NC 47K NC
Traditional Mode (ACC) 470K 47K NC 0R
ACC mode (Default)
D CC mode
1uF 0 ohm
C0933
C0930 1uF 0 ohm
R0925
1K NC
R0926
1.5K NC
R0960 NC 2.49K
C0951 4.7uF 0 ohm
R0909 0 ohm NC
<TITLE>
TITLE: REV: <REV>
09_AUDIO_BATCONNECTOR
DOCUMENT NO.: SIZED: A1
DEPARTMENT: Hardware DEPT.
COMPANY:
9 20
DESIGNER: <DESIGNER> Last Saved Date: 2019/4/8 SHEET: OF