红米4标准版 L1&L2 逻辑框图&元器件分布图
U1101
MSM8937
AP&BP
GPS
LCD
5.0in 1280*720
CTP
Main Camera
13MP
Front_Camera
5MP
TP_I2C
4 Lanes CSI
2 Lanes CSI
4 Lanes DSI
SDC1
EBI0
U1801
EMMC+LPDDR3
2G+16GB
PRX
DRX
U4701
WCN3660B
BT/WIFI/FM
WLAN_BB_IQ
CLK from PMU
FL4801
WL_RFIO_5G
WL_CMD
U3101
ANT SW
&GSM PA
U2901
WTR2965
WTR0_PRXBB_IQ
WTR0_DRXBB_IQ
GPS_BB_IQ
WTR0_TXBB_IQ
TX
PRX B1/B2/B3/B5/B7/B8/B20/B34/B39/BC0/ GSM_LB/HB
GPS
U4901
GPS-LNA
T/RX
TX RXT/RX芯片位号 供电
控制信号 时钟
U4101
DRX-SW
DRX B1/B3/B4/B5/B8/B20/B39/B40
DRX
RFFE1
FLASH LED
SD
UIM DATA
ZJ2501
TF
UIM1/2
U3201
L/M/H PA
TX B1/B2/B3/B5/B8/B20/BC0
RFFE1
TRX B38/B41
SENSOR_I2C
SENSOR
ZU2302
LP-Sensor
ZU2304
M-Sensor
ZU2303
G+Gyro
CLK from PMU
CLK from PMU
ZJ2301
FP-Sensor
SPI
from U0701
U3901
RX-SW
DRX B7/B38/B41
from U0501
VSP/VSN from U0501
BL LED from U0501
USB_VBUS
SW
Charger
DCDCs
LDOs
X0701
19.2MHz
USB
PWR_KEY
USB_DP/DM
SPMI
RST
U0501
PMI8952
PMU
SMPI
SMPI
U0701
PM8937
PMU
BB_CLK
FLASH LED
BL LED
VSP/VSN
RF_CLK
AUDIO
RECEIVER
M
MIC
HEADSET
VIBR
ZU2410
SPK-PA
SLEEP_CLK
S
ZU2670
RGB LED DRV
RGB_ I2C
from U0701 VREG_L10
RFFE5
ZD2690
INFARED LEDS
INFARED_DRV
CDC_PDM
CAM_I2C1
CAM_I2C0
WL_BT_RFIO_2P4G
FL4802
U4401
RFFE1
TX B4
TX B7/B34/B39/B41 GSM_LB/HB
TX / PRX
DRX
DRX
TRX B40
Filter
PRX B40
PRX B38/B41
TX B40
TX B38/B41
Filter