Huawei E357U Schematics
A
1 2 3 4 5 6
A
U1
B
DRX_Q_P
DRX_Q_M
DRX_I_P
DRX_I_M
PRX_Q_M
PRX_Q_P
PRX_I_M
PRX_I_P
TX_Q_M
TX_Q_P
TX_I_P
TX_I_M
EXT_PDET_EN
PA_RAMP
GSM_PA_EN
GSM_PA_BAND
PA_ON_3
PA_ON_1
PA_ON_0
PA_R1
PA_R0
DRX_Q_P
DRX_Q_M
DRX_I_P
DRX_I_M
PRX_Q_M
PRX_Q_P
PRX_I_M
I/Q Signals
PRX_I_P
TX_Q_M
TX_Q_P
TX_I_P
TX_I_M
EXT_PDET_EN
PA_RAMP
GSM_PA_EN
GSM_PA_BAND
PA select control
PA_ON_3
PA_ON_1
PA_ON_0
PA_R1
PA_R0
BB
VREG_RFRX_2V7
power
DRX_MODE_SELECT_C
DRX_MODE_SELECT_B
DRX_MODE_SELECT_A
switch control
V_CDMA_PA
VREG_S3_1V8
VREG_RFRX_2V1
VREG_TCXO
VREG_SWITCH_2V7
SSBDT_RTR
TRK_LO_ADJ
ANT_SEL3
ANT_SEL2
ANT_SEL1
ANT_SEL0
GPIO_NV
TX_ON
TX_IREF
VREG_RFRX_2V7
V_CDMA_PA
VREG_S3_1V8
VREG_RFRX_2V1
VREG_TCXO
VREG_SWITCH_2V7
GPIO_NV
SSBDT_RTR
TX_ON
TRK_LO_ADJ
TX_IREF
TCXO
TCXO
DRX_MODE_SELECT_C
DRX_MODE_SELECT_B
DRX_MODE_SELECT_A
ANT_SEL3
ANT_SEL2
ANT_SEL1
ANT_SEL0
U2
PA_ON_3
PA_ON_1
PA_ON_0
PA_R1
PA_R0
TRK_LO_ADJ
GSM_PA_BAND
GSM_PA_EN
TX_ON
PA_RAMP
SSBDT_RTR
GPIO_NV
ANT_SEL0
ANT_SEL1
ANT_SEL2
ANT_SEL3
DRX_MODE_SELECT_A DRX_I_M
DRX_MODE_SELECT_B
DRX_MODE_SELECT_C
PA_ON_3
PA_ON_1
PA_ON_0
PA_R1
PA_R0
TRK_LO_ADJ
GSM_PA_BAND
GSM_PA_EN
TX_ON
PA_RAMP
SSBDT_RTR
GPIO_NV
ANT_SEL0
ANT_SEL1
ANT_SEL2
ANT_SEL3
DRX_MODE_SELECT_B
DRX_MODE_SELECT_C
RF
switch control
I\Q signals
VREG_RFRX_2V1
VREG_RFRX_2V7
PowerPA select control
VREG_S3_1V8
VREG_SWITCH_2V7
EXT_PDET_EN
V_CDMA_PA
VREG_TCXO
TX_IREF
TCXO
TX_I_M
TX_I_P
TX_Q_M
TX_Q_P
PRX_I_M
PRX_I_P
PRX_Q_M
PRX_Q_P
DRX_Q_P
DRX_Q_M
DRX_I_MDRX_MODE_SELECT_A
DRX_I_P
VREG_RFRX_2V1
VREG_RFRX_2V7
V_CDMA_PA
VREG_S3_1V8
VREG_TCXO
VREG_SWITCH_2V7
TX_IREF
EXT_PDET_EN
TCXO
TX_I_M
TX_I_P
TX_Q_M
TX_Q_P
PRX_I_M
PRX_I_P
PRX_Q_M
PRX_Q_P
DRX_Q_P
DRX_Q_M
DRX_I_P
B
C
D
C
The type and specification of the components refer to the BOM
11-07-18
DATEECA NO
DESIGNED
REVIEWED
HANGUOJUAN 00166463
ZHENGSHENG 00110379
CP1E357UM02
VER
B
PART NUMBER
03021GHP
00631355
SHEET 01 OF 21
HUAWEI TECH CO.,LTD.
D
1
2 3 4 6
5
A
1 2 3 4 5 6
RF INPUT OUPUT PORTS
A
B
For Antenna Switch Control
ANT_SEL0
ANT_SEL1
ANT_SEL2
ANT_SEL3
DRX_MODE_SELECT_A
DRX_MODE_SELECT_B
DRX_MODE_SELECT_C
TX IQ Input
TX_Q_P
TX_Q_M
TX_I_P
TX_I_M
SBI Control Line
SSBDT_RTR
For WCDMA PA Control
PA_ON_0
PA_ON_1
PA_ON_3
PA_R1
PA_R0
Power Supply For RF
V_CDMA_PA
VREG_RFRX_2V7
VREG_RFRX_2V1
Other Control Line
TCXO
TX_IREF
RX IQ Output
PRX_Q_P
PRX_Q_M
PRX_I_P
PRX_I_M
DRX IQ Output
DRX_Q_P
B
C
D
VREG_S3_1V8
DRX_Q_M
For GSM PA Control
DRX_I_P
DRX_I_M
C
PA_RAMP
GSM_PA_EN
GSM_PA_BAND
VREG_TCXO
VREG_SWITCH_2V7
For Power Detect
EXT_PDET_EN
For RTR6285 Control
TX_ON
For GPIO_NV
GPIO_NV
For VCTCXO Control
TRK_LO_ADJ
The type and specification of the components refer to the BOM
DESIGNED
TANJIANWEI 00159579
CP1E357UM02
REVIEWED
PANGUANGSHENG 00045446
VER
PART NUMBER
00631355
SHEET 10 OF 21
11-05-09
DATEECA NO
D
1
B
2 3 4 6
03021GHP
5
HUAWEI TECH CO.,LTD.
A
1 2 3 4 5 6
A
19.2MHz VCTCXO
B
C
VREG_TCXO VREG_TCXO
C3102
C3105
U3101
B
G
TRK_LO_ADJ
R3101
C3101
4
+DCVCOUTPUT
1
GND
3
2
C3106 RTR6285_TCXO
C3107
TCXO
C
D
The type and specification of the components refer to the BOM
11-05-09
DATEECA NO
DESIGNED
REVIEWED
1
2 3 4 6
TANJIANWEI 00159579
PANGUANGSHENG 00045446
CP1E357UM02
VER
B
5
PART NUMBER
03021GHP
00631355
SHEET 11 OF 21
HUAWEI TECH CO.,LTD.
D
A
1 2 3 4 5 6
Antenna Switchplexer
A
B
C
C3221
C3226
C3225
C3222
GSM850/900 TX
Ant Pad,Antenna Engineer Confirm
ANT1
C3228
C3227
SEL0_N
1
ANT0
C3224
C3220
C3223
SEL2_NSEL1_N
ANT Matching Circuit
L3203
L3205
Antenna Engineer Confirm
GPIO_NV
VREG_S3_1V8
SEL3_N
01
0
R3201
C3212
C3214
L3204
R3210
L3206
C3213
L3207
C3211
J3201
Unmated
CA
Plus
Mmated
4 3
GND2 GND1
MS_15602
12
R3203
C3210
L3202
TRX_WCDMA_IMT
R3211
CRS5001_1704F
R3202
J3202
1
P
2
S
3
GND1
4
GND2
GSM_INP_IN
GSM_INN_IN
EGSM_INP_IN
EGSM_INN_IN
TX_GSM850_EGSM900
DCS_INN_IN
DCS_INP_IN
GPCS_INP_IN
GPCS_INN_IN
TX_DCS1800_PCS1900
TRX_WCDMA_1900
TRX_WCDMA_850
U3201
1
GSM850RX1
2
GSM850RX2
3
GSM900RX1
4
GSM900RX2
25
GSM850/900TX
5
GSM1800RX1
6
GSM1800RX2
7
GSM1900RX1
8
GSM1900RX2
22
GSM1800/1900TX
15
UMTS1
16
UMTS2
17
UMTS3
ANT
VDD
VC1
VC2
VC3
VC4
GND1
GND2
GND3
GND4
GND5
GND6
GND7
GND8
GND9
B
L3210
C3207
19
10
14
13
12
11
9
18
20
21
23
24
26
27
28
R3205
R3206
R3207
R3208
VREG_SWITCH_2V7
C3208
ANT_SEL0
ANT_SEL1
ANT_SEL2
ANT_SEL3
C
D
GSM1800/1900 TX
GSM1800 RX
GSM1900 RX
GSM900 RX
GSM850 RX
IMT_TRX
W900/850_TRX
IMT_PCS_TRX
1
1
0
0
0
0
0
0
1 0
0
1
0
0
0
0
0
The type and specification of the components refer to the BOM
0
1
1
1
1 1
1
0
0
1
1 1
1
0
0
0
DESIGNED
REVIEWED
2 3 4 6
TANJIANWEI 00159579
PANGUANGSHENG 00045446
CP1E357UM02
VER
B
5
PART NUMBER
03021GHP
00631355
SHEET 12 OF 21
HUAWEI TECH CO.,LTD.
11-05-09
DATEECA NO
D
A
1 2 3 4 5 6
WCDMA IMT TX MODULE
C3308TRX_WCDMA_IMT
V_CDMA_PA
L3303
C3304
C3303
C3307
A
B
C
TX_WCDMA_HB_IMT
L3301
C3302
Z3301
IN
1
GND1
2
GND2
5
OUT
4
C3301
GND3
3
PA_R0
PA_R1
PA_ON_0
PA control of IMT
C3309
C3310
U3301
RF7401
1
VCC1
2
RFIN
3
VBP
4
VMODE
5 6
VEN CPL
USE 47100300
VCC2
RFOUT
ISO
GND
SINK
B
6
ANT
GND2
5
GND1
4
GND0
10
9
8
7
11
R3301
C3305
PWR_DET_2
LB3301
1 2
C3306
2
TX_IN RX_OUT
3 1
LK50A
U3302
GND5
GND4
GND3
9
8
7
RX_WCDMA_IMT
C
R3303
PWR_DET
D
PA control of IMT
Mode of operation
Power down
Stand-by mode
High power mode
Medium power mode
Low power mode
1
PA_ON_0
LOW LOW
LOW
HIGH
HIGH
HIGH
PA_R1 PA_R0
LOW
X
LOW
HIGH
HIGH
X
LOW
LOW
HIGH
2 3 4 6
V_CDMA_PA
ON
ON
ON
ON
ON
R3302
R3304
The type and specification of the components refer to the BOM
DESIGNED
TANJIANWEI 00159579
CP1E357UM02
REVIEWED
PANGUANGSHENG 00045446
VER
B
PART NUMBER
03021GHP
5
11-05-09
DATEECA NO
00631355
SHEET 13 OF 21
HUAWEI TECH CO.,LTD.
D
A
1 2 3 4 5 6
WCDMA PCS TX MODULE
A
V_CDMA_PA
B
TX_WCDMA_HB_PCS
C
TRX_WCDMA_1900
C4304
C4303
C4302
L4301
Z4301
IN
1
GND1
2
GND2
5
OUT
GND3
U4301
ACPM_5202_TR1
1
C4301
4
3
PA_R0
PA_R1
PA_ON_3
VCC1
2
RFIN
3
VBP
4
VMODE
5 6
VEN CPL
USE 47100282
VCC2
RFOUT
ISO
GND
SINK
10
9
8
7
11
R4301
LB4301
C4305
PWR_DET_1
C4308
C4306
C4307
L4305
U4302
6
ANT
3
TX
2
GND1
4
GND2
RX1
RX2
GND3
GND4
GND5
RX_WCDMA_W1900_M
1
8
5
7
9
L3406
RX_WCDMA_W1900_P
B
PA control of PCS
C
PA control of PCS
Mode of operation
D
Power down
Stand-by mode
High power mode
Medium power mode
Low power mode
PWR_DET_2
The type and specification of the components refer to the BOM
PA_ON_3
LOW LOW
LOW
HIGH
HIGH
HIGH
PA_R1 PA_R0
LOW
X
LOW
HIGH
HIGH
X
LOW
LOW
HIGH
1
V_CDMA_PA
ON
ON
ON
ON
ON
2 3 4 6
DESIGNED
REVIEWED
TANJIANWEI 00159579
PANGUANGSHENG 00045446
CP1E357UM02
VER
B
5
PART NUMBER
03021GHP
00631355
SHEET 14 OF 21
HUAWEI TECH CO.,LTD.
11-05-09
DATEECA NO
D
A
1 2 3 4 5 6
WCDMA 850 PA/TX CHAIN
A
V_CDMA_PA
B
TX_WCDMA_850
L3501
C3502
Z3501
IN
1
GND1
2
GND2
5
1.4*1.1
OUT
GND3
C3533
C3510
U3501
RF7405
1
4
3
C3501
PA_R0
PA_R1
PA_ON_1
C3506
W850:USE 47100298
W900:USE 47100295
C3505
VCC1
2
RFIN
3
VBP
4
VMODE
5 6
VEN CPL
VCC2
RFOUT
ISO
GND
SINK
10
9
8
7
11
R3501
R3505
L3503
C3508
C3509
C3507
U3504
6
ANT
3
TX
2
GND1
4
GND2
GND3
GND4
GND5
RX1
RX2
L3504
RX_WCDMA_W850_P
1
8
RX_WCDMA_W850_M
5
7
9
2.5x2.0
C3511
TRX_WCDMA_850
B
C
D
PA control of 850
Mode of operation
Power down
Stand-by mode
High power mode
Medium power mode
Low power mode
PA_ON_1
LOW LOW
LOW
HIGH
HIGH
HIGH
PA_R1 PA_R0
LOW
X
LOW
HIGH
HIGH
X
LOW
LOW
HIGH
V_CDMA_PA
ON
ON
ON
ON
ON
PWR_DET_1
The type and specification of the components refer to the BOM
DESIGNED
TANJIANWEI 00159579
CP1E357UM02
REVIEWED
PANGUANGSHENG 00045446
VER
B
PART NUMBER
03021GHP
11-05-09
DATEECA NO
00631355
SHEET 15 OF 21
HUAWEI TECH CO.,LTD.
C
D
1
2 3 4 6
5
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