LG lg-d821 - Page 212

5. BLOCK DIAGRAM
- 212 -
Copyright © 2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
[D821] WiFi/BT I/F
4 / 10
4. WiFi/BT I/F
XTAL
37.4MHz
BT_UART_RXD
GPIO[53]
SLEEP_CLK
BT_RESET
BT_PCM_CLK
BT_PCM_SYNC
AUDIO_PCM_CLK_GPIO[79]
AUDIO_PCM_SINK_GPIO[80]
SDIO_CMD
SDIO_CLK
WLAN_SDIO[0]
BT/ WLAN Ant.
WLAN_POWER_ON
SDC2_CMD
SDC2_CLK
LPO_IN
MSM
8
974
Wi-Fi / BT
BCM4339
COB
WLAN_CMD
WLAN_CLK
GPIO[26]
BT_REG_ON
BT_PCM_CLK
BT_PCM_SYNC
WRF_XTAL_OUT
BT_UART_TXD
BT_UART_RXD
BT_UART_RTS
BT_UART_CTS
CLK
WLAN_HOST_WAKEUP
GPIO[74]
BT_PCM_DIN
BT_PCM_DOUT
AUDIO_PCM_DIN_GPIO[81]
AUDIO_PCM_DOUT_GPIO[82]
BT_PCM_OUT
BT_PCM_IN
SDC2_DATA[0]
SDC2_DATA[1]
SDC2_DATA[2]
SDC2_DATA[3]
PM8941
SDIO_DATA_0
XO_IN
XO_OUT
WRF_RFIN_2G
WRF_XTAL_IN
BT_UART_TXD
BT_UART_RTS_N
BT_UART_CTS_N
SDIO_DATA_1
SDIO_DATA_2
SDIO_DATA_3
WL_REG_ON
WLAN_SDIO[1]
WLAN_SDIO[2]
WLAN_SDIO[3]
WL_GPIO_0
BT_HOST_WAKEUP
BT_WAKEUP
BT_HOST_WAKEUP
BT_DEV_WAKE
Diplexer
WRF_RFOUT_2G
SW_2G_RX
WRF_RFIN_5G
WRF_RFIN_5G
RF_SW_CTRL_0
SW_2G_LNA_EN
SW_2G_TX
RF_SW_CTRL_1
RF_SW_CTRL_8
RF_SW_CTRL_2
RF_SW_CTRL_3
FEM
R
F5521
ANT
FEM
R
F5540
ANT
RX
TX
LNA_EN
SAW
WLAN_RX_5G
WLAN_TX_5G
SW_5G_LNA_EN
GPIO[54]
GPIO[56]
GPIO[55]
GPIO[42]
GPIO[62]
GPIO[41]
WLAN_TX_2G
WLAN_RX_2G
RX
TX
C_RX
C_TX
LNA_EN
C_RX
SW_5G_TX
SW_BT_TX
RF_SW_CTRL_7
C_BT
BT_TX
BT_Rf_TX
BT