LG -d821 Service Manual page 212

4. WiFi/BT I/F
[D821] WiFi/BT I/F
GPIO[53]
GPIO[54]
GPIO[56]
GPIO[55]
GPIO[41]
GPIO[42]
MSM
GPIO[62]
8974
SDC2_CMD
SDC2_CLK
SDC2_DATA[0]
SDC2_DATA[1]
SDC2_DATA[2]
SDC2_DATA[3]
GPIO[26]
GPIO[74]
AUDIO_PCM_DIN_GPIO[81]
AUDIO_PCM_SINK_GPIO[80]
AUDIO_PCM_CLK_GPIO[79]
AUDIO_PCM_DOUT_GPIO[82]
LGE Internal Use Only
BT_UART_TXD
BT_UART_RXD
BT_UART_RXD
BT_UART_TXD
BT_UART_RTS
BT_UART_RTS_N
BT_UART_CTS
BT_UART_CTS_N
BT_RESET
BT_REG_ON
BT_HOST_WAKEUP
BT_HOST_WAKEUP
BT_WAKEUP
BT_DEV_WAKE
WLAN_CMD
SDIO_CMD
WLAN_CLK
SDIO_CLK
WLAN_SDIO[0]
SDIO_DATA_0
WLAN_SDIO[1]
SDIO_DATA_1
WLAN_SDIO[2]
SDIO_DATA_2
WLAN_SDIO[3]
SDIO_DATA_3
WLAN_POWER_ON
WL_REG_ON
WLAN_HOST_WAKEUP
WL_GPIO_0
BT_PCM_DIN
BT_PCM_OUT
BT_PCM_SYNC
BT_PCM_SYNC
BT_PCM_CLK
BT_PCM_CLK
BT_PCM_DOUT
BT_PCM_IN
XO_IN
WRF_XTAL_IN
XTAL
XO_OUT
37.4MHz
WRF_XTAL_OUT
4 / 10
Wi-Fi / BT
BCM4339
COB
WLAN_RX_2G
WRF_RFIN_2G
WLAN_TX_2G
WRF_RFOUT_2G
SW_2G_RX
RF_SW_CTRL_0
SW_2G_LNA_EN
RF_SW_CTRL_1
SW_2G_TX
RF_SW_CTRL_8
SW_BT_TX
RF_SW_CTRL_7
BT_TX
BT_Rf_TX
WLAN_TX_5G
WRF_RFIN_5G
WLAN_RX_5G
WRF_RFIN_5G
SW_5G_LNA_EN
RF_SW_CTRL_2
SW_5G_TX
RF_SW_CTRL_3
SLEEP_CLK
LPO_IN
- 212 - Copyright © 2013 LG Electronics. Inc. All right reserved.
5. BLOCK DIAGRAM
BT/ WLAN Ant.
Diplexer
FEM
RX
RF5521
TX
C_RX
SAW
ANT
LNA_EN
C_TX
C_BT
BT
FEM
RX
RF5540
TX
ANT
LNA_EN
C_RX
PM8941
CLK
Only for training and service purposes