Wifi - Power & Control Circuit Diagram - LG BD550 Service Manual

11. WiFi - POWER & CONTROL CIRCUIT DIAGRAM
12
11
1
10
R27 R27 R26 R26 R28 R28
10 10 49.9 49.9 10 10
9
C11 C11 C7 C7 C12 C12
4.7uF 4.7uF 4.7uF 4.7uF 4.7uF 4.7uF
8
VDD3_3
7
C18 C18 C27 C27
0.01uF 0.01uF 1000pF 1000pF
6
VDD5
5
C10 C10
C1 C1
C14 C14
4.7uF 4.7uF
1uF 1uF 0.1uF 0.1uF
VDD5
4
R22 R22
1 2
C32 C32
C53 C53
200K 200K
0.1uF 0.1uF
4.7uF 4.7uF
3
3V3
VDD1_2A
2
C132 C132 C146 C146
C40 C40
1000pF 1000pF
4.7uF 4.7uF 0.1uF 0.1uF
1
A B C D
VDD3_3
1
VDD3_3 VDD3_3
R57 R57
VDD_RF_LDO
VDD_RF_LDO
2
R12 R12 R14 R14
0 0
4.7K 4.7K 4.7K 4.7K
5
VRXA1_1
BCM4323 BCM4323
R32 R32
U1D U1D
1 2 U18
cal_res_ref
14.7K 14.7K
VDD_VCO_1P2
W19
vdd_vco_1p2
VDD_XTAL_1P2
U19
vdd_xtal_1p2
VDD_CP_1P2
V19
vdd_cp_1p2
R10
vdd_if_0_1p2
R14
vdd_txmix_0_1p2
R5
vdd_if_1_1p2
VDD1_2A
R9
VDD1_2A vdd_txmix_1_1p2
U12
vdd_pga_0_3p3
U11
vdd_pa_g_0_3p3
U10
vdd_pa_a_0_3p3
U6
vdd_pga_1_3p3
C17 C17
U5
vdd_pa_g_1_3p3
C16 C16 U4
C19 C19
vdd_pa_a_1_3p3
1000pF 1000pF
1uF 1uF
4.7uF 4.7uF
C21 C21
0.01uF 0.01uF
L2 L2
1 2
I288 I288
2.2uH 2.2uH
U2 U2 RT8020 RT8020
R16 R16
267K 267K
7 8
VIN1 VIN1 LX1 LX1
6 4
EN1 EN1 FB1 FB1
5 3
NC1 NC1 GND1 GND1
L12 L12
1 2 1 2
VIN2 VIN2 LX2 LX2
2.2uH 2.2uH
12 10
EN2 EN2 FB2 FB2
R7 R7
63.4K 63.4K
11 9
NC2 NC2 GND2 GND2
H H
C13 C13
0.01uF 0.01uF
VDD3_3
VDD3_3
C148 C148 C150 C150 C123 C123
C102 C102 C149 C149 C156 C156
1000pF 1000pF 1000pF 1000pF
0.1uF 0.1uF 1000pF 1000pF 1000pF 1000pF 0.1uF 0.1uF
E F G H
CRITICAL CRITICAL
100MHZ 100MHZ
2
L1 L1
VDD_RF_LDO
R18
i_vdd3p3_rfl
VDD_RF_LDO
P19
o_vdd1p3_rf
C62 C62 C83 C83
0.1uF 0.1uF 1000pF/NI 1000pF/NI
C6 C6
4.7uF 4.7uF
VDD3_3
U13
env_det_g_0
U9
env_det_a_0
U7
env_det_g_1
R13 R13
U3
env_det_a_1
4.7K 4.7K
P18
mimophy_core0_sharedant_ctrl
N2
mimophy_core1_sharedant_ctrl
VRXA0_0
5 M19
VRXA0_0
mimophy_core0_ant1_swctrl1
5 VTXA0_0
M18
VTXA0_0 mimophy_core0_ant1_swctrl2
L19
mimophy_core0_ant2_swctrl1
L18
mimophy_core0_ant2_swctrl2
VRXA0_1
K1
mimophy_core1_ant1_swctrl1
VTXA0_1
L2
mimophy_core1_ant1_swctrl2
VRXA1_1
M2
mimophy_core1_ant2_swctrl1
VTXA1_1
5 L1
VTXA1_1
mimophy_core1_ant2_swctrl2
R24 R24 XTAL_IN T19
xtal_in
4.7K 4.7K XTAL_OUT
R19
xtal_out
T18
xtal_buf_out
U14
rgnd
U15
rgnd
U8
rgnd
V10
rgnd
VDD3_3
V11
rgnd
V13
rgnd
V14
rgnd
V16
rgnd
C54 C54 C20 C20
V4
rgnd
V5 0.1uF 0.1uF 1000pF 1000pF
rgnd
V7
rgnd
V8
rgnd
W12
rgnd
W15
rgnd
W16
rgnd
W17
rgnd
W3
rgnd
W6
rgnd
W9
rgnd
VDD3_3
VDD3_3
3V3
R25 R25
1 2
0 0 C92 C92 C94 C94
0.1uF 0.1uF 0.1uF/NI 0.1uF/NI
C2 C2
C9 C9 C24 C24
22uF 22uF
22pF 22pF 0.1uF 0.1uF
R17 R17
2 1
59K 59K
R9 R9
VDD1_2
VDD1_2A
1 2
0 0
C69 C69 C36 C36
33pF 33pF 0.1uF 0.1uF
C8 C8
22uF 22uF
R2 R2
XTAL_IN
2 1
59K 59K
XTAL_OUT
1
VDD1_2A
C157 C157 C139 C139 C33 C33
C105 C105 C87 C87 C110 C110
4.7uF 4.7uF
0.1uF /NI 0.1uF /NI 0.1uF/NI 0.1uF/NI
0.1uF/NI 0.1uF/NI 0.1uF 0.1uF 0.1uF 0.1uF 1000pF 1000pF
I J K L
3-115 3-116
BCM4323 BCM4323
U1E U1E
RXG_0
W14
lna_p_g_0
W13
lna_p_a_0
TXG_0
W11
pa_p_g_0
W10
pa_p_a_0
RXG_1
W8
lna_p_g_1
W7
lna_p_a_1
TXG_1
W5
pa_p_g_1
W4
pa_p_a_1
K18
mimophy_pa_cntrl_2g_0
N18
mimophy_pa_cntrl_5g_0
PA_CNTRL_2G_1
J1
mimophy_pa_cntrl_2g_1
K2
mimophy_pa_cntrl_5g_1
P16
mimophy_ext_lna_2g_gain_0
XLNA_CNTL_2G_PU0
R15
mimophy_ext_lna_2g_pu_0
N16
mimophy_ext_lna_5g_gain_0
M16
mimophy_ext_lna_5g_pu_0
K4
mimophy_ext_lna_2g_gain_1
L4
mimophy_ext_lna_2g_pu_1
M4
mimophy_ext_lna_5g_gain_1
N4
mimophy_ext_lna_5g_pu_1
BCM4323 BCM4323
U1F U1F
M1 F12
i_vdd3p3_ldo vdd
F7 F13
otp_vdd vdd
G9 L7
vddio vdd
H12 L8
vddio vdd
H13 M13
vddio vdd
H8 M14 C5 C5
vddio vdd
J13 M6 0.1uF 0.1uF
vddio vdd
J14 M8
vddio vdd
J7 N13
vddio vdd
K14 N14
vddio vdd
K7 N6
vddio vdd
K8 N8
vddio vdd
F10 P2
vddbus o_vdd2p5_para
C77 C77
F11 P1
vddbus o_vdd2p5_parb
F8 R1 0.1uF 0.1uF
vddbus o_vdd2p5_parc
F9 R2
vddbus o_vdd2p5_pard
G10
vddbus
G8 L6
vddbus o_vddp5_usb
G11 N1
vddio o_vdd2p5_par
N19
o_vref_ldo
C43 C43
C95 C95
0.01uF 0.01uF
0.1uF/NI 0.1uF/NI
H10
vss
H11 L13
vss vss
H9 L9
vss vss
J10 M10
vss vss
J11 M11
vss vss
J12 M12
vss vss
J9 M7
vss vss
K10 M9
vss vss
K11 N10
vss vss
K12 N11
vss vss
K13 N12
vss vss
K9 N7
vss vss
L11 U16
vss rgnd
L12 P4
vss avss1_ldo
R40 R40
20.0MHZ 7PPM 20.0MHZ 7PPM
2
221 221 Y1 Y1
CRITICAL CRITICAL
1 3
C91 C91
C144 C144 C136 C136
22pF 22pF 22pF 22pF
M N O P Q
5
RXG_0
5
TXG_0
VDD3_3
5
RXG_1
R15 R15
VDD3_3
5
TXG_1
4.7K 4.7K
R19 R19
4.7K 4.7K
VDD1_2A
C78 C78
C75 C75 C74 C74
4.7uF 4.7uF
0.1uF/NI 0.1uF/NI 1uF 1uF
VDD2_5
VDD2_5
C44 C44 C46 C46
1uF 1uF 1uF 1uF
POWER AND Control POWER AND Control POWER AND Control
WN7522C-1-LF-19
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