LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3.10 H/W Sub System
3.10.1 RF Interface
A. RTR6280 (WCDMA Tx, GSM Tx/Rx)
MSM6245 controls RF part(RTR6280) using these signals.
• SBST : SSBI I/F signals for control Sub-chipset
• PA_ON1 : Power AMP on RF part
• RX0_I/Q_M/P,TX_I/Q_M/P : I/Q for T/Rx of RF
• TX_AGC_ADJ : control the gain of the Tx signal prior to the power amplifier
• DAC_REF : Reference input to the MSM Tx data DACs
- 46 -
Close to MSM
WDOG monitoring
GPIOs
10p
C2032
C2047
33nF
C2033
10p
TP2000
AA1
XMEM1_CS_N1_GPIO76
XMEM1_CS_N3_SDRAM1_CS_N1_GPIO77
Y6
W15
XMEM2_CS_N2_GPIO35
AA15
XMEM2_CS_N3_GPIO36
L25
UART3_RFR_N_GPIO87
USB_RX_DATA_GPIO29
N19
WDOG_STB_SBCK1_GPIO0
H25
TDO
A17
TMS
F15
TRK_LO_ADJ
L13
H15
TRST_N
H13
TX_AGC_ADJ
TX_ON_GRFC10
H12
H6
UART2_DP_RX_DATA_GPIO89
F18
SYNTH0_GP_PDM0_GPIO92
B6
SYNTH2_GPIO65
TCK
D16
TCXO_EN_GPIO94
F19
D15
TDI
F26
SBDT1_GPIO1
SBST1_GPIO93
H18
SDCC_DAT1_GPIO99
F25
M25
SDCC_DAT2_GPIO100
SDCC_DAT3_GPIO101
M26
AA25
Q_IM_CH0
Q_IM_CH1
W23
Y25
Q_IP_CH0
Q_IP_CH1
V23
B12
Q_OUT
A12
Q_OUT_N
RTCK
H16
PA_ON0
F17
H11
PA_ON1_GPIO2
MDDIC_DATN
A23
A22
MDDIC_DATP
MDDIC_STBN
B23
B22
MDDIC_STBP
MDP_VSYNC_PRIMARY_GPIO105
AD2
AE3
MDP_VSYNC_SECONDA_GPIO104
AB25
I_IM_CH0
V25
I_IM_CH1
AC25
I_IP_CH0
W25
I_IP_CH1
I_OUT
B13
I_OUT_N
A13
AE13
LCD_EN_GPIO37
D11
GRFC5_AUX_SBST_GPIO8
GRFC7_GPIO10
T23
B4
GRFC8_GPIO11
D5
GRFC9_GPIO12
GRFX6_GPIO9
T19
F8
GPIO66
H17
GP_PDM1_PA_RAN_GE0
D17
GP_PDM2_PA_RAN_GE1
B8
GRFC0_GPIO3
A8
GRFC1_AUX_SBDT_GPIO4
D9
GRFC2_GPIO5
F10
GRFC3_GPIO6
GRFC4_AUX_SBCK_GPIO7
H10
A6
GPIO28
H9
GPIO43
F12
DAC_REF
AUX_PCM_CLK_GRFC14_GPIO80
K19
N21
AUX_PCM_DIN_GRFC13_GPIO14
AUX_PCM_DOUT_GRFC12_GPIO103
G4
AUX_PCM_SYNC_GRFC11_GPIO102
J8
G23
BT_CLK_GPIO25
BT_DATA_GPIO20
R19
E26
BT_SBCK_GPIO23
BT_SBDT_GPIO22
E25
F23
BT_SBST_GPIO24
BT_TX_RX_N_GPIO21
H21
CAMCLK_PO_GP_MN_GPIO13
J21
47
R2009
2K
R2011
VGA_CAM_PWDN
ANT_SEL2
LCD_RESET_N
LCD_IF_MODE_1
LCD_VSYNC
LCD_MAKER_ID
PA_R0
SLIDE_DETECT
CAM_MCLK
VGA_CAM_RESET_N
RCV_EN_N
KEY_BL_EN
SPK_AMP_EN
GSM_PA_EN
GSM_PA_BAND
ANT_SEL1
ANT_SEL0
BT_SBDT
BT_CLK
TX_IM
TX_IP
RX_QM
RX_QP
RX_IM
RX_IP
PA_ON0
TRK_LO_ADJ
TCXO_EN
TX_ON
BT_SBST
BT_SBCK
BT_TX_RX_N
BT_DATA
DAC_REF
TX_QM
TX_QP
Figure. Schematic of RF Interface of MSM6245
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