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3. TECHNICAL BRIEF
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3.10 H/W Sub System
3.10.1 RF Interface
A. RTR6275 & RFR6275
MSM6280 controls RF part(RTR6275, RFR6275) using these signals.
• SSBDT_RTR/RFR : 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
rev.1.0 (HOOK_KEY_N)
Near to MSM
TP204
R216
51K
10K
R215
R214
2K
C265
33nF
H25
AA1
XMEM1_CS_N1_GPIO76
XMEM1_CS_N3_SDRAM1_CS_N1_GPIO77
Y6
XMEM2_CS_N2_GPIO35
W15
AA15
XMEM2_CS_N3_GPIO36
L25
UART3_RFR_N_GPIO87
USB_RX_DATA_GPIO29
N19
WDOG_STB_SBCK1_GPIO0
D16
TCXO_EN_GPIO94
F19
TDI
D15
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
RTCK
H16
F26
SBDT1_GPIO1
SBST1_GPIO93
H18
PA_ON0
F17
PA_ON1_GPIO2
H11
AA25
Q_IM_CH0
Q_IM_CH1
W23
Y25
Q_IP_CH0
Q_IP_CH1
V23
B12
Q_OUT
A12
Q_OUT_N
AE13
LCD_EN_GPIO37
AB25
I_IM_CH0
V25
I_IM_CH1
AC25
I_IP_CH0
I_IP_CH1
W25
I_OUT
B13
I_OUT_N
A13
GRFC1_AUX_SBDT_GPIO4
D9
GRFC2_GPIO5
GRFC3_GPIO6
F10
GRFC4_AUX_SBCK_GPIO7
H10
D11
GRFC5_AUX_SBST_GPIO8
GRFC7_GPIO10
T23
B4
GRFC8_GPIO11
D5
GRFC9_GPIO12
GRFX6_GPIO9
T19
F8
GPIO66
GP_PDM1_PA_RAN_GE0
H17
D17
GP_PDM2_PA_RAN_GE1
B8
GRFC0_GPIO3
A8
F12
DAC_REF
A6
GPIO28
H9
GPIO43
CAMCLK_PO_GP_MN_GPIO13
J21
AUX_PCM_CLK_GRFC14_GPIO80
K19
N21
AUX_PCM_DIN_GRFC13_GPIO14
G4
AUX_PCM_DOUT_GRFC12_GPIO103
AUX_PCM_SYNC_GRFC11_GPIO102
J8
ANT_SEL3
ANT_SEL2
MOTOR_EN
MICROSD_DETECT
PA_R1
HEADSET_AMP_EN
PA_ON2
VGA_CAM_PWDN
KEY_BL_EN
VGA_CAM_RESET
SPK_AMP_EN
GSM_PA_EN
GSM_PA_BAND
GSM_SAW_SW_MODE
ANT_SEL1
ANT_SEL0
FOLDER_DETECT
REMOTE_INT
LCD_RESET_N
CAM_MCLK
CAM_LDO_EN
PA_ON1
JTAG_TCK
JTAG_TMS
JTAG_TDI
JTAG_RTCK
JTAG_TDO
TRK_LO_ADJ
TCXO_EN
TX_ON
DAC_REF
TX_QM
TX_QP
TX_IM
TX_IP
RX_QM
RX_QP
RX_IM
RX_IP
JTAG_TRST_N
TX_AGC_ADJ
Figure. Schematic of RF Interface of MSM6280
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