LG LM-X120HM Service Manual page 106

U1301
[15] RF_B2_PRX_RFIC B8
PRX1
[15] RF_B4/66_PRX_RFIC A8
PRX2
[15] RF_B7_PRX_RFIC B7
PRX3
[15] A7
RF_B1_PRX_RFIC PRX4
[15] RF_B5_PRX_RFIC B6
PRX5
[15] RF_B8_PRX_RFIC A5
PRX6
[14] RF_B40/B41_PRX_RFIC B5
PRX7
[15] A4
RF_B20/17_PRX_RFIC PRX8
PRX
[15] RF_B3_PRX_RFIC B4
SWHB
RF_B28_PRX_RFIC B3
[15] SWLB
A2
[16] RF_B20_DRX_RFIC
DRX1
[16] RF_B5_DRX_RFIC A1
DRX2
B2
DRX3
[16] RF_B28_DRX_RFIC B1
DRX4
C2
[16] RF_B8_DRX_RFIC
DRX5
[16] RF_B1_DRX_RFIC D1
DRX6
DRX
[16] RF_B3_DRX_RFIC D2
DRX7
[16] RF_B7_DRX_RFIC E1
DRX8
E2
[16] RF_B40_DRX_RFIC
DRX9
[16] RF_B38_DRX_RFIC F2
DRX10
[14] RF_LTE_HB_TX_RFIC RF_LTE_HB_TX_RFIC D12
TXO1
[14] RF_LTE_MB_TX_RFIC C12
RF_LTE_MB_TX_RFIC
TXO2
TXO
[15] RF_2G_HB_TX_RFIC RF_2G_HB_TX_RFIC A12
TXO3(2G)
DRX(I/Q)
[15] RF_2G_LB_TX_RFIC RF_2G_LB_TX_RFIC A10
TXO4(2G)
[14] RF_LTE_LB_TX_RFIC RF_LTE_LB_TX_RFIC C11
TXO5
RF-TR-MT6177
GND
GND
VRF18_RFIC
F12
VDD_TXHF
L11 VRF12_RFIC
VDD_STXLV
VRF18_RFIC
J10
VDD_STXHF
E3 VRF12_RFIC
VDD_RXLV
VRF18_RFIC
G2
VDD_RXHF
GND
MT6177M
J2
BSI_D2
J1 RFIC0_BSI_D1
BSI_D1
BSI H2 RFIC0_BSI_D0
BSI_D0
K1 RFIC0_BSI_CK
BSI_CLK
H1 RFIC0_BSI_EN
BSI_EN
L7
TXDET1
N58683668
G1 1 2
RCAL
G4
SRCLKENA1 [ 3,8]
EN_BB
XO
PRX(I/Q) TX(I/Q) DET(I/Q) L1 VIO18_RFIC
VIO
L2 PMIC_CLK_RF [8]
XO_IN
No Connection, for PN test
Put LC filter (default L=0R, C=NC) close to PMIC output
due to harmonic rejection.
Power domain of MT6177M
VIO18_RFIC
VRF18_RFIC
VRF12_RFIC
4.7uF close to RFIC for better Ripple Performance
106
VRF18_RFIC
VRF12_RFIC
0.1uF
C1301
0.1uF
VRF18_RFIC
C1302
VRF12_RFIC
0.1uF GND
C1303
0.1uF
VRF18_RFIC GND
C1304
0.1uF GND
C1305
GND
GND
RFIC0_BSI_D1 [ 3]
[12]
RFIC0_BSI_D0 [ 3] [12]
The linear detection range is 0~-39dBm,
RFIC0_BSI_CK [3]
[12]
coupling factor is 22~27dB.
RFIC0_BSI_EN [3]
[12]
6dB Attenuator
R1330
15
RF_TXDET [15] [33]
300 300
GND
R1331 R1314
[12,22]
VIO18_RFIC GND
GND
[22] 0.1uF
C1306
GND
For phone, remove 0R to avoid low slew rate.
For EVB, put test point.
0
1 2 VIO18_PMU
R1316
0
1 2R1317 VRF18_PMU
4.7uF
C1307
GND
0
1 2R1318 VRF12_PMU
4.7uF
C1308
GND
<TITLE>
TITLE: REV: <REV>
13_TRANCEIVER
DOCUMENT NO.: SIZED: A1
DEPARTMENT: Hardware DEPT.
COMPANY:
13 20
DESIGNER: <DESIGNER> Last Saved Date: 2019/4/8 SHEET: OF