LENOVO Tab 2 A7-20. Schematics
5
4
3
2
1
Bottom Layer
U201B
D10
GNDK
R12
GNDK
N15
GNDK
M15
GNDK
C20
GNDK
N6
GNDK
AE24
AE20
AA22
AA10
AC12
P14
T12
M14
M6
K14
P10
T11
P11
T10
M11
F4
K11
H12
R10
A24
D19
W7
C14
N10
M10
L10
K10
B7
A1
C12
F6
P15
L13
M13
N13
P13
R13
H13
N12
P12
D7
K12
L12
M12
W11
W8
F21
L22
G22
W15
C16
AB9
U3
R6
J6
N4
F15
W14
P16
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
GNDK
AVSS33_USB
AVSS33_USB
DVSS18_MIPITX
DVSS18_MIPIRX
DVSS18_MIPIRX
DVSS18_MIPIRX
AVSS18_MEMPLL
AVSS18_PLLGP
AVSS33_VDAC
AVSS18_HDMITX
DVDD28_MSDC0
DVDD28_MSDC1
DVDD28_MSDC2
DVDD18_MIPITX
DVDD18_MIPIRX
AVDD18_MEMPLL
AVDD18_PLLGP
D D
C C
B B
VCCK
VCCK
VCCK
VCCK
VCCK
VCCK
VCCK
VCCK
VCCK
VCCK
VCCK
VCCK
VCCK
VCCK
VCCK_VPROC
VCCK_VPROC
VCCK_VPROC
VCCK_VPROC
VCCK_VPROC
VCCK_VPROC
VCCK_VPROC
VCCK_VPROC
VCCK_VPROC
VCCK_VPROC
VCCK_VPROC
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
VCCIO
DVDD18_IO0
DVDD18_IO1
DVDD18_IO2
DVDD18_IO3
AVDD33_USB
AVDD18_USB
AVDD18_AP
M8
U12
R9
L9
J11
U10
J14
U11
K15
L15
K9
R8
P8
N8
R19
P19
V14
V15
T16
U14
R17
P18
T15
R15
T14
G7
H8
H10
G11
G14
H15
G17
G8
G18
M24
T24
F1
U4
G24
G1
W2
AB11
AC10
M1
J1
AC14
G19
AE19
C100
100nF
C0201
1 2
NC100 NC PAD
C108
100nF
C0201
1 2
NC101 NC PAD
C118
100nF
C0201
C123
100nF
C0201
C128
100nF
C0201
C133
100nF
C135
100nF
C138
100nF
C0201
C141
100nF
C0201
C142
100nF
C0201
C101
100nF
C0201
C109
100nF
C0201
C0201
C0201
C0201
C134
1uF
C0201
C119
100nF
C124
100nF
C129
100nF
C136
100nF
C102
100nF
C0201
C110
100nF
C0201
C120
1uF
C0402
C125
100nF
C0201
C130
100nF
C0201
R104 10R
C103
100nF
C0201
VPROC_FB (2C3)
C111
100nF
C0201
GND_VPROC_FB (2C3)
C121
1uF
C0402
C126
100nF
C0201
C0402
C0201
C104
1uF
C112
100nF
C105
1uF
C0402
C113
1uF
C0402
C122
4.7uF
C0603
MSDC0:eMMC (1.8V)
MSDC1:SD Card (3.3V/1.8V)
MSDC1:3.3V for LCM
VUSB_PMU
VDD18_8127
C0603
C0603
C106
10uF
C114
10uF
PMU_VDDEMI
C107
10uF
C0603
(22uF/6.3V/X5R)
C115
10uF
C0603
VDD18_8127
VDD18_8127
VMC_PMU
VGP1_PMU
C116
10uF
C0603
C0603
(1)VPROC_FB, GND pin of 1st cap group
should be differential
pair with ground shielding remote
sense to PMIC
EXTERNAL_POWER_EN(4C3)
R100 NC
R0603NC
C117
10uF
only used For MT8127T Vcck.
( change R100 to 0 ohm SMT, R101 NC)
VBAT
C127
4.7uF
C0603
R107
10K_1%
R0402
EXTERNAL_PMU
VPROC_PMU
Vcore power 1.15V +/- 10%
U101
4
1
IN
EN
GND2FB
SY8089AAC
ce_sot23-5
LX
3
L100 2.2uH
ind_smd_2520
5
R106
93.1K_1%
R0402
NC
R108
10K_1%
R0402
C0402
C131
22pF
EXTERNAL_PMU
C132
22uF
C0603
0.6V(1+R1670/R1671)=1.2V
DVDD28_NFI
DVDD28_DPI
AB14
J24
U24
DVDD28_NFI
DVDD28_DPI
C143
100nF
C0201
C144
100nF
C0201
4
C145
100nF
C0201
VDD18_8127
VDD18_8127
Title
Title
Title
01 MT8127 - Power
01 MT8127 - Power
01 MT8127 - Power
Size Document Number Rev
Size Document Number Rev
Size Document Number Rev
C
C
C
Date: Sheet
Date: Sheet
3
2
Date: Sheet
MT8127 TABLET
MT8127 TABLET
MT8127 TABLET
1
113Friday, April 24, 2015
113Friday, April 24, 2015
113Friday, April 24, 2015
V1.0
V1.0
V1.0
of
of
of
AVDD18_HDMITX
A A
MT8127B_LPDDR
5
5
4
I2C0 : Sub Camera,
I2C1 : CTP, Switch charger
I2C2 : G sensor,thermal sensor
3
SCL0 (2C9,5A2)
SDA0 (2C9,5A2)
SCL1 (3A9,4D11,5B2)
SDA1 (3A9,4D11,5B2)
SCL2 (2C10,4C10,5B2)
SDA2 (2C10,4C10,5B2)
2
1
D D
tp_cir_050
URXD3_J
UTXD3_J
URXD2_J
C0402
C200
1uF
UTXD2_J
URXD1_J
UTXD1_J
URXD0_J
UTXD0_J
USB_DP(3C12)
USB_DM(3C12)
CHD_DP_P0(3B3)
CHD_DM_P0(3B3)
C201 Close to MT8127
pin AC17 should connect to C201.2 first,
then connect to GND by via
TP208
TP209
TP210
TP211
C C
1
1
1
VGP2_PMU
JTDI (4C2)
JTDO (4C2)
JTCK (4C2)
R203 NC
R0402
R204 0R
R0402NC
VBUS
R205
R206 1M_1% R0402
R207 5.1K_1% R0201
26M_CLKSQ(5A3)
RTC32K_1V8(2B3)
5.1M
R0402
JTMS (4C2)
1
Close to MT8127
I2C2: Sensors/ thermal sensor
SCL2(2C10,2D2,4C10)
SDA2(2C10,2D2,4C10)
B B
I2C1: CTP/switch charger
SCL1(2D2,3A9,4D11)
SDA1(2D2,3A9,4D11)
I2C0: CAMERA
VDD18_8127
R208
R209
4.7K
VDD18_8127
R210
4.7K
VDD18_8127
R212
4.7K
4.7K
R0402
R211
4.7K
R0402
R213
4.7K
R0402
R0402
R0402
R0402
SCL0(2C9,2D2)
SDA0(2C9,2D2)
tp_cir_050
WATCHDOG(4C3)
REFP
TP200
tp_cir_050
TP202
TP203
TP201
1
1
1
tp_cir_050
tp_cir_050
tp_cir_050
1
1
1
90 Ohm
differential
C201
0.1uF
C0402
TP204
TP205
1
1
tp_cir_050
tp_cir_050
1
1
TESTMODE
FSOURCE_P
DVDD18_EFUSE
JTCK(5D2)
JTDO(5D2)
JTDI(5D2)
JTMS(5D2)
USB_VBUS
USB_VRT
TP206
TP207
1
1
1
1
1
1
K17
L18
U20
AD17
AE17
AA18
AE10
AD10
AA11
AA15
AA14
AB15
AC16
AB18
AC17
R21
K8
K7
P24
Y18
W18
V18
AD9
AC9
AE8
AD8
Y11
L20
L21
K21
Y14
Y15
K18
UTXD0
26M_CLKSQ
RTC32K_CK
TESTMODE
FSOURCE_P
DVDD18_EFUSE
WATCHDOG
JTCK
JTDO
JTDI
JTMS
USB_VBUS
USB_VRT
USB_DP_P0
USB_DM_P0
USB_DP_P1
USB_DM_P1
CHD_DP_P0
CHD_DM_P0
I2S_BCK
I2S_LRCK
I2S_DATA_IN
AUX_IN0
AUX_IN1
AUX_IN2
AUX_IN3
AUX_IN4
AUX_IN5
REFP
AVSS18_AP
MSDC2_DAT3U6MSDC2_DAT2U5MSDC2_DAT1V4MSDC2_DAT0V3MSDC2_CLKT8MSDC2_CMDU7MSDC1_DAT3E2MSDC1_DAT2F2MSDC1_DAT1D3MSDC1_DAT0D2MSDC1_CLKD1MSDC1_CMDE3MSDC0_DAT7
LCD_ID(3C8)
STBYB(3D8)
LCM_RST(3D8)
R18
L17
U19
UTXD1
UTXD2
URXD0
URXD1
URXD2
W3
AE23
K19
W4
AD23
U18
UTXD3
URXD3
K20
SCL0
SCL1
SCL2
SDA0
SDA1
SDA2
EINT12/EINT13 can not be used as interrupt
3.3V IO3.3V IO
V22
AC19
AD19
AC18
AD18
U23
U22
SPI_MI
SPI_CS
SPI_CK
SPI_MO
PCM_RX
PCM_CLK
3.3V IO
MSDC0_DAT6
MSDC0_DAT5
MSDC0_DAT4
MSDC0_DAT3
MSDC0_DAT2
MSDC0_DAT1
F22
E22
E23
C23
C24
D22
D24
D23
PCM_SYNC
MSDC0_DAT0
U21
PCM_TX
MSDC0_CLK
G21
AB23
AC22
KPCOL0
MSDC0_CMD
F24
G20
AB24
AC24
AD24
AC23
KPCOL1
KPCOL2
KPROW0
KPROW1
KPROW2
SRCLKENAI
PWRAP_SPI0_CSN
PWRAP_SPI0_CSN2
PWRAP_SPI0_CK
PWRAP_SPI0_CK2
PWRAP_SPI0_MI
PWRAP_SPI0_MO
PWRAP_INT
AUD_CLK_MOSI
AUD_DAT_MISO
AUD_DAT_MOSI
DVDD28_DPI
MSDC0_RSTB
SYSRSTB
SRCLKENA
EINT10
EINT11
EINT12
EINT13
EINT14
EINT15
EINT16
EINT17
EINT18
EINT19
EINT20
EINT21
EINT0
EINT1
EINT2
EINT3
EINT4
EINT5
EINT6
EINT7
EINT8
EINT9
MC_CMPDN (3D9)
SUB_CMRST (3D9)
SUB_CMPDN (3D9)
HP_MODE_EN (2C4)
SPEAKER_EN (3A4)
U201C
MT8127B_LPDDR
R20
SYSRSTB
P23
R22
N22
M23
N23
L19
P22
M22
L23
K23
K24
K22
AB19
AA21
AA19
Y19
V21
AB22
AA23
Y23
Y24
W23
W24
W22
V23
Y21
F23
G23
H23
J22
AD20
AC21
V20
J23
KPCOL0 (3B12,3D12,5C12)
KPCOL1 (3D12,5C12)
USB_ID (2C12)
KPROW0 (4C12)
GPIO_CHG_EN (4C11)
GPIO_USB_DRVVBUS (4C11)
1
TP230
1
tp_cir_050
TP212
1
eMMC 4.5
eMMC_RST (4D5)
eMMC_CMD (4D5)
eMMC_CLK (4D5)
eMMC_DAT0 (5D5)
eMMC_DAT1 (5D5)
eMMC_DAT2 (5D5)
eMMC_DAT3 (5D5)
eMMC_DAT4 (5D5)
eMMC_DAT5 (5D5)
eMMC_DAT6 (5D5)
eMMC_DAT7 (5D5)
TP213
1
1
SRCLKENA (3C3)
PWRAP_SPI0_CSN (4C3,4D3)
PWRAP_SPI0_CK (4C3)
PWRAP_SPI0_MI (4C3)
PWRAP_SPI0_MO (4C3)
PWRAP_INT (4C3)
AUD_CLK_MOSI (4C3)
AUD_DAT_MISO (4C3)
AUD_DAT_MOSI (4C3)
SYSRSTB (3B12,4C3)
EINT_CHG_STAT (4C11)
EINT_HP (3D4)
EINT_HDMI_PWREN
EINT6_MC1INSI (2C5,3B5)
TP_EINT (3A9)
EINT1_G (5C10)
EINT2_G (5C10)
TP_RST (3A9)
A A
SD3.0
MSDC1_CMD
MSDC1_CLK
MSDC1_DAT0
MSDC1_DAT1
MSDC1_DAT2
MSDC1_DAT3
R214 0R R0402
R215 0R R0402
R216 0R R0402
R217 0R R0402
R218 0R R0402
R219 0R R0402
MC1CM (3B5,3C5)
MC1CK (3B5,3C5)
MC1DA0 (3B5)
MC1DA1 (3B5)
MC1DA2 (3B5,3C5)
MC1DA3 (3B5,3C5)
Damping Resistors near T-card slot
Title
Title
Title
02 MT8127 - Baseband
02 MT8127 - Baseband
02 MT8127 - Baseband
Size Document Number Rev
Size Document Number Rev
Size Document Number Rev
C
C
C
Date: Sheet
Date: Sheet
5
4
3
2
Date: Sheet
MT8127 TABLET
MT8127 TABLET
MT8127 TABLET
1
213Friday, April 24, 2015
213Friday, April 24, 2015
213Friday, April 24, 2015
V1.0
V1.0
V1.0
of
of
of
5
VBAT
D D
C C
SOD123
500mW
VF : 4.85V~5.36V
B B
Symbol
LPDDR2/1.2V
SPI_CSN
AUD_MOSI
VBAT
D301
PZ5D4V2H
dio_sod523_1200x0800
Add Zenar Diode
Place on the path
from VBAT to IC
(Battery connector
or test point or IO
connector)
C0603
C310
22uF
60mil60mil
H
L
VIO18_PMU
L (20K)
H (20K)
R301 NC
R302 NC
AUD_DAT_MOSI(2C2)
AUD_CLK_MOSI(2C2)
AUD_DAT_MISO(2C2)
PWRAP_SPI0_CK(2C2)
PWRAP_SPI0_CSN(2C2,4D3)
PWRAP_SPI0_MO(2C2)
PWRAP_SPI0_MI(2C2)
60mil
20mil
20mil
20mil
20mil
20mil
C315C0603
R0201NC
R0201NC
4.7uF
Weakly pull high
C317C0603
C316C0603
4.7uF
4.7uF
PCDDR3/1.5VPCDDR3L/1.35V
H
H (20K)
TP308
TP309
1
1
TP313
TP312
1
1
C319C0402
C318C0603
C321
C320C0402
4.7uF
1uF
1uF
C322
10uF
C0603
C0402 1uF
default use 1TCXO+clock Buffer for better WIFI EVM
X301
KT2520F26000ZAW18TAK
osc_kt2520y
1
VCON
2
NC
GND3OUT
A A
26M_CLKSQ(4C2)
26M_CLKSQ
5
R317 0R
R318 NC
BF1_MT6627_INPUT(4D7)
For 1TCXO (X301) mode (U702 NC, U703 NC, X601 SMT)
R316 0 ohm, R318 0 ohm, R297 0 ohm, R320 0 ohm
26M_CLKSQ_R (2D7)
R320 NC
LPDDR1/1.8V
AUD_DAT_MOSI
TP307
1
TP311
1
VCC
NC2
4
L (20K)
L
PWRAP_SPI0_CSN (2C2,4C3)
PWRKEY_R(3B12,3D12,5D12)
WATCHDOG(4C2)
SYSRSTB(1C2,3B12)
PWRAP_INT(2C2)
EXTERNAL_POWER_EN(2C1)
TP310
1
VIO18_PMU
20mil
C323
10uF
C0603
C328
NC
C0402NC
6
5
4
MT6323_26M_CLK_R(2D7)
CLKSOURCE_OUT
4
C301
2.2uF
C0603
Default
PU
PD
VSYS_PMU
3
MICBIAS0
VA_PMU
C0603
C300
0.1uF
C302
2.2uF
C0402
MICBIAS1
AU_VIN0_P(5A4)
AU_VIN0_N(5A4)
AU_VIN1_P(5C4)
AU_VIN1_N(5C4)
ACCDET(4B4)
MT6323_26M_CLK
For external PMU use
BATSNS(1D11)
ISENSE(1D11)
BAT_ON(2B11)
VCDT(2C11)
VDRV
1
TP302
R303 1K R0402
R304 0R R0201
R305 0R R0201 C306
C325
1uF
C0402
VTCXO_PMU
R311 0R R0201
TP/SMD/0.5MM
MT6323_26M_CLK
SRCLKENA(2C2)
C324
1uF
C0402
R316 NC
R0402NC
R319 0R
R321 NC
30mil
TP306
C314
C311
CHR_LDO(1C11)
DVDD18_DIG
100nF
C0201
THERM_ADC
1
100nF
C0201
CHD_DM_P0(4C2)
CHD_DP_P0(4C2)
C304
1uF
C0402
TP304
AUXADC_REF(2B11)
3
U300
MT6323L tfbga158_760x760e050h120
R1
VBAT_SPK
L2
GND_SPK
H1
AU_MICBIAS0
H2
AU_MICBIAS1
D3
AU_VIN0_P
D4
AU_VIN0_N
G1
AU_VIN1_P
G2
AU_VIN1_N
E2
AU_VIN2_P
E1
AU_VIN2_N
J1
AVDD28_ABB
D2
AVDD28_AUXADC
F3
GND_ABB
K4
GND_ABB
G3
ACCDET
F2
CLK26M
P13
BATSNS
R13
ISENSE
K3
BATON
A13
VCDT
P14
VDRV
R14
CHRLDO
CONTROL SIGNAL
P1
PWRKEY
A1
SYSRSTB
M3
RESETB
A10
FSOURCE
C7
INT
P12
EXT_PMIC_EN
N2
PMU_TESTMODE
B8
AUD_MOSI
C9
AUD_CLK
A6
AUD_MISO
A2
SRCLKEN
N1
1
FCHR_ENB
B10
SPI_CLK
B7
SPI_CSN
D9
SPI_MOSI
B9
SPI_MISO
E14
VBAT_VPROC
G15
VBAT_VPROC
F14
VBAT_VPROC
F15
VBAT_VPROC
A14
VBAT_VPA
B14
VBAT_VPA
H13
VBAT_VSYS
R7
VBAT_LDOS3
P7
VBAT_LDOS3
R5
VBAT_LDOS2
R2
VBAT_LDOS1
K15
AVDD22_BUCK
N15
AVDD22_BUCK
A8
DVDD18_DIG
A5
DVDD18_IO
C2
AUXADC_VREF18
B1
AUXADC_AUXIN_GPS
B2
AVSS28_AUXADC
BC 1.1
A11
CHG_DM
A12
CHG_DP
C8
SIM1_AP_SCLK
P11
SIMLS1_AP_SIO
D8
SIM1_AP_SRST
B6
SIM2_AP_SCLK
R11
SIMLS2_AP_SIO
D7
SIM2_AP_SRST
N11
SIMLS1_SCLK
N12
SIMLS1_SIO
P10
SIMLS1_SRST
M10
SIMLS2_SCLK
R10
SIMLS2_SIO
N10
SIMLS2_SRST
GND_LDOJ9GND_LDOJ8GND_LDOJ7GND_LDO
GND_LDO
J11
AUDIO
CHARGER
VBAT INPUT
AUXADC
SIM LVS
GND_LDO
GND_LDO
E9
H11
H10
GND_LDO
GND_LDO
H8
G10
DRIVER
BUCK OUTPUT
GND_VPROC_FB
ALDO OUTPUT
DLDO OUTPUT
RTC
GND_LDO
GND_LDO
GND_LDO
H6
H5
G9
VPROC_FB
AVDD33_RTC
VCAM_IO
VEMC_3V3
VCAM_AF
GND_VREF
GND_LDO
GND_LDO
GND_LDO
GND_LDO
GND_LDO
GND_LDO
GND_LDO
GND_LDO
RTC_32K1V8
RTC_32K2V8
GND_ISINK
GND_VSYS
GND_VPA
GND_VPROC
GND_VPROC
GND_VPROC
GND_VPROC
GND_LDO
GND_LDO
GND_LDO
GND_LDO
GND_LDO
GND_LDO
GND_LDO
GND_LDO
GND_LDO
GND_LDO
GND_LDO
GND_LDO
G7
G8
SPK_P
SPK_N
AU_HSP
AU_HSN
AU_HPL
AU_HPR
ISINK0
ISINK1
ISINK2
ISINK3
VPROC
VPROC
VPROC
VPA_FB
VSYS
VCN28
VTCXO
VCAMA
VCN33
VRF18
VIO18
VIO28
VCN18
VCAMD
VMC
VMCH
VUSB
VSIM1
VSIM2
VGP1
VIBR
VGP2
VGP3
VREF
XOUT
VPA
VPA
VM
XIN
Must Close to MT6323L
L1
M1
H4
H3
J2
K2
C10
C11
D11
B11
E15
C15
D15
VPROC_FB
C13
GND_VPROC_FB
D13
A15
B15
1
B13
1
VSYS_SW
H15
M4
VA
P2
N3
R3
N7
C1
1
J15
K12
L12
P3
K14
L15
M13
R6
M6
R4
N6
R8
P8
N8
M8
L8
M15
P6
PMU_VREF
P15
R15
K7
L6
L9
L11
M12
N13
K10
K11
RTC32K_1V8
D6
RTC32K_2V8
C5
32K_XIN
A3
32K_XOUT
A4
E11
J12
G13
F12
F11
G11
E13
K6
K8
B3
F5
F6
D5
E6
F9
J5
G6
2
L302 470R
L303 470R
HPL (5D4)
HPR (3A4,5D4)
1
ISINK0
L300 0.68uH
TP300
TP301
TP303
1
C331
NC
C0402NC
Must Close to MT6322L
TP1106
ind_smd_2520
VPROC_FB (3D1)
GND_VPROC_FB (3C1)
L301 0.68uH
ind_smd_2520
VA_PMU
VCN28_PMU
VTCXO_PMU
VCAMA_PMU
VCN33_PMU
TP315
VRF18_PMU
VIO28_PMU
VCN18_PMU
VCAMD_PMU
VCAM_IO_PMU
VEMC_3V3_PMU
VMC_PMU
VMCH_PMU
VUSB_PMU
VGP1_PMU
VIBR_P
VGP2_PMU
VGP3_PMU
VCAM_AF
C313
100nF
C0201
O/P
C326
18pF
C0402
Close to MT6322L
2
C299
NC
C0201NC
C305
4.7uF
C0603
R322 0R
R0402
C0402
TP305
1
RTC32K_1V8 (4C2)
X300
SPKR_P (2B4)
C332
18pF
C0402
C303
4.7uF
C0603
VIO18_PMU
SPKR_N (2A4)
4 mil GND trace with
good shielding from baseband (Differential)
1) VPCA7_BB & GND_VPCA7_BB
2) VPCA15_BB & GND_VPCA15_BB
3) DVDD_DVFS & GND_DVDD_DVFS (GND @ bypass-cap)
VPROC_PMU
4 mil GND trace with
good shielding from baseband (Differential)
VCAMA_PMU
C308
4.7uF
C0603
VDD28_8127
VDD18_8127
C330
NC
C0201NC
VSYS_PMU
C309
4.7uF
VGP1 used for LCM vdd 3.3V
TP316
TP/SMD/0.5MM
1
21
C327
18pF
C0402
Title
Title
Title
03 MT6323L PMU
03 MT6323L PMU
03 MT6323L PMU
Size Document Number Rev
Size Document Number Rev
Size Document Number Rev
C
C
C
Date: Sheet
Date: Sheet
Date: Sheet
1
VA_PMU
C312
1uF
C0402
PMU_VDDEMI
R323
R324 0R
MT8127 Tablet
MT8127 Tablet
MT8127 Tablet
1
1uF
C0402
VRTC
C307
4.7uF
C0603
0R
VIO28_PMU
VIO18_PMU
V1.0
V1.0
313Friday, April 24, 2015
313Friday, April 24, 2015
313Friday, April 24, 2015
V1.0
of
of
of
5
Earphone Audio
D D
HPL(2D3)
HPR(2D3,3A4)
Earphone MICPHONE
AU_VIN1_N
Close to BB
C409
100nF
C0201
C413
100nF
C0201
AU_VIN1_N1
AU_VIN1_P1AU_VIN1_P
C412
100pF
C0402
C C
AU_VIN1_N(3D3)
AU_VIN1_P(3D3)
C402
22uF
C0603
C404
22uF
C0603
MICBIAS1
Close to MIC
R415
1K_1%
R0402
R416
C411
1.5K
33pF
R0402
C0402
C414
33pF
C0402
ACCDET
ACCDET(3D3)
4
close to IC close to connector
R404 100R
R0402
R407 100R
R0402
C406
33pF
C0402
C407
10nF
C0402
C405
33pF
C0402
GND of C410(10uF) and headset
should tie together and single
via to GND plane
C410
10uF
C0603
Close toP401
tie together and single via to GND plane
HP_MIC (2C4)
R417
1K_1%
R0402
3
VIO18_PMU
R402
470K
EINT_HP(1C2)
R41018v/15PFR0402
R40918v/15PFR0402
R41110K_1%
C408
10nF
C0402
R40818v/15PFR0402
v
R41210K_1%
v
v
R0402
R0402
R406 47K
L401 47R/100MHZ
R0402
L402 47R/100MHZ
GND_MIC2(1C4)
HEADSET_GND(2B4)
GND_MIC1(1C4)
R0402
L403 0R
R413 0R
L400
82nH
L0402
R414 NC
2
2
4
5
1
3
R0402
R0402NC
DA220-K2-01-A
AUDIOJK_DA220
2
4
5
1
3
P401
FM_ANT (5B7)
FM_RX_N_6627 (5B7)
P406
P407
C423
1uF
C0402
15mil
VIBRATOR
1
VIBR_P
Single via to GND plane
VA_PMU
R424
EN
CEXT
MIC
AGND1A2GNDA2
0R
C424
100nF
C0201
A1
VDD
A3
MIC1
B3
MIC2
GND
B2
C3
GND_MIC2 (2D4)
GND_MIC1 (2D4)
R433
0R
R0201
U401
FSA8049UCX ce_wlcsp9_116x116e040h065
HP_MODE_EN(2D2)
HP_MIC(4C4)
R425 0R
C422
HEADSET_GND(2D4)
NC
C0201NC
C1
C2
B1
B B
R418
1K_1%
R0402
Close to BB
Handset Microphone 1
MICBIAS0
C415
100nF
C0201
Speaker
R419
1.5K
R0402
AU_VIN0_P(3D3)
AU_VIN0_N(3D3)
A A
AU_VIN0_P
AU_VIN0_N
5
C0402
C0402
C416
1uF
1uF
R420
1.5K
R0402
R423
1K_1%
R0402
C0603
C420
33pF
C0402
C417
10uF
C419
C421
33pF
C0402
C418
100pF
C0402
12
R421
ESD5451N-2/TR
R0402
12
R422
ESD5451N-2/TR
R0402
together then single via to main GND
4
P402
adam 8127 mic pad
P403
AUDIO PA
Default: not assemble
HPR(2D3,5D4)
SPEAKER_EN(2D2)
3
C427
VBAT
22nF
R426 0R
C0402
C428
R427 100R-1%
R0402
R0402
C425
18pF
C0201
22nF
C0402
C429
NC
C0402NC
C426
4.7uF
U402
C0603
AW8155FCR
A2
INP
INN
CTRL
ce_fc9_150x150e050h055
VOPA3VDD
C3
VON
AGNDB1PGND
AGND
B3
B2
2
A1
C1
C2
SPKR_P (1D3)
SPKR_N (1D3)
C430
33pF
C0402
R0402
R428 0R
C433
R0402
100pF
R429 0R
C0201
C431
33pF
C0402
Title
Title
Title
04 MT8127 - Audio
04 MT8127 - Audio
04 MT8127 - Audio
Size Document Number Rev
Size Document Number Rev
Size Document Number Rev
C
C
C
Date: Sheet
Date: Sheet
Date: Sheet
R430
18v/15PF
R0402
v
R431
18v/15PF
R0402
v
MT8127 TABLET
MT8127 TABLET
MT8127 TABLET
P404
P405
1
413Friday, April 24, 2015
413Friday, April 24, 2015
413Friday, April 24, 2015
of
of
of
V1.0
V1.0
V1.0
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