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5
D
[25,28]
HPH_REF should be routed between HPH_L
[22]
CDC_HPH_R
and HPH_R, and then connected to headset
[22]
CDC_HPH_REF
ground.
[22]
CDC_HPH_L
C
[22]
MIC_BIAS2
[22]
CDC_IN2_P
R2322
[22]
CDC_IN2_M
GND CLOSE TO HSJ!!!
Note: R2305 should be 20K +/-5%. OEM
must install this component as shown
and not change the value as it will
negatively impact MBHC operation and
HPH path THD+N.
NOTE Backup option for insertion and removal detection.
Primary option is using WCD9320 MBHC_HSDET for
mechanical insertion/removal detection.
B
Note: For MBHC operation, it is Required to implement
MICBIAS2 as shown in this reference schematic. Do not add
large capacitance to the micbias2 trace. The trace must be
limited to less than 270pF.
MIC A: Front TOP
MIC2302
SPK0838HT4H-B
1
4
VDD
DATA
2
3
SELECT
CLOCK
MIC B: Rear TOP
MIC2303
SPK0838HT4H-B
1
4
VDD
DATA
2
3
SELECT
CLOCK
A
5
4
[11]
AUDIOJK_SWITCH_EN
R2333
100K
CDC_HPH_REF
R2339
0R
C2361 150pf
FM_RX_ANT2
C2362 150pf
L2310
82nH
<BOM_IGNORE>
C2338
470pf
L2302
BLM15BD182SN1D
L2301
BLM15BD182SN1D
Rev. M
L2304
BLM15BD182SN1D
C2308
C2307
680pf
680pf
VREG_S3A_1P8
133K
R2310
R2305
R2314
[22]
MBHC_HSDET
Note: According to Qualcomm's
2.2K
100K
80-N1763-9, WCD9320 has internal ESD
for area and cost decrease. Need verify
before EVT and then remove them
0R
N.M.
C2309
33nf
VREG_S3A_1P8
R2323
10K
[14]
GPLED_SRC2
[14]
GPLED_SNK2
[11,26]
USB1_HS_ID
R2319
0R
[11]
USB_CON_THERM
[21]
CDC_DMIC_CLK0
[21]
CDC_DMIC_DATA0
[21]
SPKR_DRVM
[14]
GPLED_SRC1
MIC_BIAS4
[22]
[14]
GPLED_SNK1
100nf
C1709
USB1_SS_TX0P_FPC
[1]
USB1_SS_TX0P
100nf
C1710
USB1_SS_TX0M_FPC
R2316
0R
[1]
USB1_SS_TX0M
CDC_DMIC_DATA2
[21]
CDC_DMIC_CLK2
[21]
[27]
USB1_HS_DP
[27]
USB1_HS_DM
[1]
USB1_SS_RX0P
[1]
USB1_SS_RX0M
N.M.
N.M.
MIC_BIAS3
[22]
R2318
0R
CDC_DMIC_DATA1
[21]
CDC_DMIC_CLK1
[21]
N.M.
N.M.
4
3
68nH
L2312
VREG_BOOST_BYPASS
C2352
1uF
U2301
SLEEVE_con1
CDC_IN2_P
16
1
1A
1B0
RING2_con1
4
3
2A
2B1
5
2B0
2
15
1S
1B1
10
9
2S
3B0
13
4B0
8
7
3A
3B1
12
11
4A
4B1
L2311
FSA2467UMX
0R
L2315
0R
L2306
RING2_con2
BLM15BD182SN1D
从耳机连接器1，2pin根部星型走线出来！
L2305
SLEEVE_con2
BLM15BD182SN1D
CDC_HPH_REF
L2314
RING2_con1
RING2_con2
BLM18BD252SN1D
星型走线
RING2_con
PLUGDETn_conn
HEADPHONE_OUT_IND_L_conn
HEADPHONE_OUT_IND_R_conn
CDC_IN2_P
L2313
SLEEVE_con1
SLEEVE_con
BLM18BD252SN1D
星型走线
SLEEVE_con2
USB1_VBUS
D2366
C2331
2.2uF
J2307
0402-BIG
60
1
25v
60
1
59
2
59
2
58
3
58
3
57
4
57
4
56
5
56
5
55
6
55
6
54
7
54
7
53
8
53
8
52
9
52
9
51
10
51
10
50
11
50
11
49
12
49
12
48
13
48
13
47
14
47
14
46
15
46
15
45
16
45
16
44
17
44
17
43
18
43
18
42
19
42
19
41
20
41
20
40
21
40
21
39
22
39
22
38
23
38
23
37
24
37
24
36
25
36
25
35
26
35
26
34
27
34
27
33
28
33
28
32
29
32
29
31
30
31
30
G2
G1
G2
G1
G4
G3
G4
G3
AXE560124
3
2
D2322
PESD5V0F1BRSF
J2301
3F66-00
2
2
4
4
LENOVO JACK
HSL
HSR
GND
MIC
L/DET
R
GND
MIC
Q
M
P
R
Note: According to
Qualcomm's 80-N1763-9,
5
5
WCD9320 has internal ESD
3
3
for area and cost
1
1
decrease. Need verify
before EVT and then
remove them
REV.J Note: When the device (MSM) is in host mode, R200 and R201 need to be installed if
the device needs to support host wake up by slave activity during VDD minimization.
The 43K pull-downs should be placed directly on top of these traces (i.e. no stub).
If this is not possible, then the max allowed stub length is 5mm. The stub can be
anywhere between the connector and PHY.
VPH_PWR
VCC_SUB_NTC_2V8
R2320
0R
N.M.
C2339
100nf
N.M.
Redriver_en
[2]
MIC_BIAS1
[22]
SPKR_DRVP
[21]
VPH_PWR
VIB_DRV_N
[14]
R2338
0R
VREG_L16_2P7
R2334
0R
GRFC_10
[2]
R2335
0R
GRFC_9
[2,25,48]
R2336
0R
GRFC_13
[2]
R2337
0R
VREG_S3A_1P8
N.M.
R2340
0R
RFFE2_CLK
[2,25,32]
R2341
0R
RFFE2_DATA
[2,25,32]
N.M.
R2342
0R
GRFC_20
[2]
R2343
0R
GRFC_21
[2]
R2331
0R
VREG_S3A_1P8_RF
R2332
0R
OUTC_SUB
[25,32]
N.M.
2
1
U2305
4
3
Vin
CE
1
2
Vout
GND
5
NC
C2340
NCP4682DMU28TCG
N.M.
100nf
N.M.
<Variant Name>
<Variant Name>
<Variant Name>
Lenovo
Lenovo
Lenovo
Title
Title
Title
K920
K920
K920
Size
Size
Size
Document Number
Document Number
Document Number
Rev
Rev
Rev
A2
A2
A2
P23. AUDIO HEADSET CONNECTOR
P23. AUDIO HEADSET CONNECTOR
P23. AUDIO HEADSET CONNECTOR
Date:
Date:
Date:
Tuesday, August 05, 2014
Tuesday, August 05, 2014
Tuesday, August 05, 2014
Sheet
Sheet
Sheet
23
23
23
of
of
of
58
58
58
1
D
C
B
A
0.11
0.11
0.11
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