Wifi - Usb_Gpio_Strap Circuit Diagram - LG BD550 Service Manual

10. WiFi - USB_GPIO_STRAP CIRCUIT DIAGRAM

12
11
BCM4323 BCM4323
U1A U1A
H4 F14
jtag_trst_l gpio0
J4 D18
10
tdi gpio1
J6 G13
tdo gpio2
H1 G14
tms gpio3
J2 D19
tck gpio4
E18
gpio5
J16 E19
uart_rx gpio6
K16 F16
uart_tx gpio7
F18
gpio8
H6 G16
sflash_c gpio9
9
G1 F19
sflash_q gpio10
G4 G18
extif_addr_21 gpio11
G2 G19
extif_flash_cs_l gpio12
H18
gpio13
H2 H16
ext_por_l gpio14
L16 H14
lv_testmode gpio15
K6 L14
test_se rf_disable_l
8
7
BCM4323 BCM4323
U1G U1G
6
D4 A4
pci_ad0 pci_cbe_l_0
A1 B8
pci_ad1 pci_cbe_l_1
A2 B12
pci_ad2 pci_cbe_l_2
B2 A16
pci_ad3 pci_cbe_l_3
D5 C19
pci_ad4 pci_clk
A3 B10
pci_ad5 pci_clkrun_l
D6 D9
pci_ad6 pci_devsel_l
B4 A12
pci_ad7 pci_frame_l
B5 D14
5
pci_ad8 pci_gnt_l
A5 D13
pci_ad9 pci_idsel
B6 D16
pci_ad10 pci_int_l
A6 A10
pci_ad11 pci_irdy_l
B7 D10
pci_ad12 pci_par
D7 A8
pci_ad13 pci_perr_l
A7 E4
pci_ad14 pci_pme_l
D8 C18
pci_ad15 pci_req_l
A11 D15
pci_ad16 pci_rst_l
4
B13 B9
pci_ad17 pci_serr_l
A13 B11
pci_ad18 pci_stop_l
A14 A9
pci_ad19 pci_trdy_l
D11
pci_ad20
B14 E16
pci_ad21 cstschg
D12
pci_ad22
A15 J18
pci_ad23 sprom_clk
B15 H19
pci_ad24 sprom_cs
3 B17 K19
pci_ad25 sprom_din
B16 J19
pci_ad26 sprom_dout
A18
pci_ad27
A17
pci_ad28
B18
pci_ad29
A19
pci_ad30
B19
pci_ad31
2
1
A B C D
BCM4323 BCM4323
U1B U1B
T1
test_inip_1
T2
test_inin_1
U1 W18
test_inqp_1 vdd_iso_1p2
U2 N9
test_inqn_1 vddpll
R11
vdd_afe_1p2_0
V1 R6
test_outip_1 vdd_afe_1p2_1
V2 R12
test_outin_1 vdd_logen_1p2
W1 R7
test_outqp_1 vdd_logen_1p2
W2 R13
test_outqn_1 vdd_lna_0_1p2
R8
vdd_lna_1_1p2
R16
tssiin_0
R4 L10
tssiin_1 vsspll
V17
gpaio_a
E F G H I
3-113
VDD3_3
VDD3_3 VDD3_3
F4
F6
VDD2_5
G7
VDD1_2A
F2
J8
C68 C68
G6
C93 C93 C90 C90
0.1uF 0.1uF
0.1uF 0.1uF 0.1uF 0.1uF B1
C2
B3
C1
VDD1_2A
VDD1_2A
C65 C65
C89 C89
0.1uF 0.1uF
0.1uF 0.1uF
L3 L3
100MHZ 100MHZ
CRITICAL CRITICAL
C79 C79 C80 C80 C81 C81 C82 C82
0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 1uF 1uF
J K L M
3-114
Vin5V
VDD5
C3 C3
22uF 22uF
BCM4323 BCM4323
CRITICAL CRITICAL
U1C U1C
100MHZ 100MHZ
E2
avdd33 moncdr
E1 1 2
avdd25 monpll
avdd12 L4 L4
D1 USB_P
vdd12pll dp
USB_N
D2
dm
F1
dgndpll rref
agnd
R21 R21
vmain_prsnt
C4 C4
4.02K 4.02K
pwr_ind
100pF 100pF
attn_bttn
attn_ind
Pin name
mimophy_core1_ant2_swctrl_1
mimophy_core1_ant1_swctrl_1
mimophy_pa_cntrl_2g_1
mimophy_core0_ant1_swctrl_1
mimophy_ext_lna_2g_pu_0
mimophy_core1_ant1_swctrl_2
N O P Q
J1 J1
1
VCC
3
D+
2
D-
4
GND
HEADER 3 HEADER 3
Netname Status
VRXA1_1 ext PD
VRXA0_1 ext PU
PA_cntrl_2G_1 ext PU
VRXA0_0 ext PU
xlna_cntl_2g_pu0 ext PU
VTXA0_1 ext PU
USB Interface/GPIOs/strap
WN7522C-1-LF-19
R S T