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5
D
[23]
CDC_IN2_P
[23]
CDC_IN2_M
C
[23]
MBHC_HSDET
[23]
MIC_BIAS1
[23]
MIC_BIAS2
[23]
MIC_BIAS3
[23]
MIC_BIAS4
C2207 100nf
C2208 100nf
L2206
22OHM@100MHZ
VREG_S3A_1P8
L2207
22OHM@100MHZ
VREG_L1_1P2
VPH_PWR
B
C2210
1uF
[11]
DIVCLK1_CODEC
A
5
4
79
MIC1_INP
74
MIC1_INM
50
Headset
MIC2_INP
68
MIC2_INM
43
MIC3_INP
57
MIC3_INM
62
MIC4_INP
56
MIC4_INM
19
MIC5_INP
26
MIC5_INM
38
MIC6_INP
32
MIC6_INM
31
MBHC_HSDET
73
MIC1
MIC_BIAS1
MIC2
61
MIC_BIAS2
MIC4&5
25
MIC_BIAS3
MIC5
37
MIC_BIAS4
CDC_CFILT1
63
MICB_CFILT1
CDC_CFILT2
67
MICB_CFILT2
C2209 100nf
CDC_CFILT3
13
MICB_CFILT3
N.M.
CDC_VDD_TX
55
VDD_TX
CDC_TX_ADC
20
VDD_TXADC
44
VDD_VBAT
51
LDO_HI_CAP
C2211
C2212
C2213
CCOMP
39
CCOMP
1uF
1uF
100nf
52
C2214
GND_CCOMP
1uF
49
GND
27
GND
53
GND
45
MCLK
C2231
100nf
N.M.
Rev. E Note: SPKR_VSNSP and SPKR_VSNSM must be
connected directly
at the speaker transducers for WCD9320 feedback
(I/V sense) speaker protection feature.
Connect SPKR_VSNSP and SPKR_VSNSM to GND if not
planning
on enabling I/V sense speaker protection.
4
3
C2232 L2307 placed close to WCD pin!!
U2101-1
C2232
WCD9320
100nf
77
ANALOG
HPH_LP
65
HPH_REF
82
HPH_RM
76
EAROP
CDC_EAR_P
81
EAROM
CDC_EAR_M
80
LINE_OUT1
69
LINE_OUT2
75
LINE_OUT3
70
LINE_OUT4
CDC_VDD_RX
64
VDD_RX
C2215
58
GND
1uF
60
VDD_BUCK
54
CDC_BUCK_VSW
BUCK_VSW
CDC_BUCK_OUT
71
BUCK_VOUT1
59
BUCK_VOUT2
REV.J Note: GND island for BUCK_NCP is
to isolate BUCK and NCP noise from other
66
circuits. Refer to 80-NA556-5 for
GND_BUCK
84
details.
GND_BUCK
72
CDC_NCP_FLY_P
NCP_C1P
CDC_NCP_FLY_M
78
NCP_C1M
83
CDC_NCP_VNEG
NCP_VNEG
14
SPKR_VSNSP
8
SPKR_DRVP
9
SPKR_DRVM
21
SPKR_VSNSM
3
VDD_SPKDR1
15
VDD_SPKDR2
2
GND_SPKDRV
4
GND_SPKDRV
7
GND_SPKDRV
1
GND_SPKDRV
Rev.J Note: GND island for
Speaker driver, (GND_SPKDRV)
is to isolate speaker driver
noise from other
circuits.Refer to 80-NA556-5
for details.
3
2
Note: This Pi filter is added for WCN FM Performance
L2202
BLM15BD471SN1D
L2203
BLM15BD471SN1D
L2204
[22]
CDC_EAR_P
L2205
[22]
CDC_EAR_M
[22]
[22]
N.M.
N.M.
L2208
22OHM@100MHZ
VREG_S3A_1P8
L2201
MPZ1608S601AT
C2217
2.2uF
Rev. E Note: It is critical to use part
identical to E36 as summarized in parts
list.Do not change unless consulted with
C2218 1uF
Qualcomm.
C2219 1uF
Note: Place components close to the CODEC pins
Pi filter place holders for EMI filtering
especially recommended when the codec
is placed away from the transducers.
VPH_PWR
!!!DNP R2212 and install R2213 with CS WCD9320
<Variant Name>
<Variant Name>
<Variant Name>
Lenovo
Lenovo
Lenovo
Title
Title
Title
K920
K920
K920
Size
Size
Size
Document Number
Document Number
Document Number
A4
A4
A4
P22. WCD9320 ANALOG
P22. WCD9320 ANALOG
P22. WCD9320 ANALOG
Date:
Date:
Date:
Tuesday, August 05, 2014
Tuesday, August 05, 2014
Tuesday, August 05, 2014
2
1
J4305
CDC_HPH_L
[23]
SDRP0615PJ02-12
CDC_HPH_REF
[23]
CDC_HPH_R
[23]
RECEIVER
N.M.
C2201
CDC_EAR_P_con
68nH
47pf
C2202
68nH
47pf
CDC_EAR_M_con
C2203
47pf
VREG_S2A_2P15
C2216
4.7uF
LOUD SPEAKER
Rev.J Note: R2222 and R2223
placeholders added
for speaker protection feature
performance; in long traces due
to amplifier ringing replace 0
ohms with 15K.
Rev
Rev
Rev
0.11
0.11
0.11
Sheet
Sheet
Sheet
22
22
22
of
of
of
58
58
58
1
D
C
B
A
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