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LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. TECHNICAL BRIEF
- 39 -
3.14 H/W Sub System
3.14.1 RF Interface
A. RTR6275(WCDMA_Tx, GSM_Tx/Rx)
MSM6280 controls RF part(RTR6275) using these signals.
• SBST : SSBI I/F signals for control Sub-chipset
• PA_ON1, PA_ON2 : 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
Figure. Schematic of RF Interface of MSM6280
W1900 PAM
W850 PAM
Close to MSM
H25
WDOG_STB_SBCK1_GPIO0
XMEM1_CS_N1_GPIO76
AA1
Y6
XMEM1_CS_N3_SDRAM1_CS_N1_GPIO77
XMEM2_CS_N2_GPIO35
W15
XMEM2_CS_N3_GPIO36
AA15
UART3_RFR_N_GPIO87
L25
N19
USB_RX_DATA_GPIO29
D16
TCK
F19
TCXO_EN_GPIO94
TDI
D15
A17
TDO
F15
TMS
L13
TRK_LO_ADJ
TRST_N
H15
TX_AGC_ADJ
H13
H12
TX_ON_GRFC10
UART2_DP_RX_DATA_GPIO89
H6
SYNTH0_GP_PDM0_GPIO92
F18
SYNTH2_GPIO65
B6
H16
RTCK
SBDT1_GPIO1
F26
H18
SBST1_GPIO93
F17
PA_ON0
PA_ON1_GPIO2
H11
Q_IM_CH0
AA25
W23
Q_IM_CH1
Q_IP_CH0
Y25
V23
Q_IP_CH1
Q_OUT
B12
Q_OUT_N
A12
LCD_EN_GPIO37
AE13
I_IM_CH0
AB25
I_IM_CH1
V25
I_IP_CH0
AC25
I_IP_CH1
W25
B13
I_OUT
A13
I_OUT_N
GRFC1_AUX_SBDT_GPIO4
A8
GRFC2_GPIO5
D9
GRFC3_GPIO6
F10
H10
GRFC4_AUX_SBCK_GPIO7
GRFC5_AUX_SBST_GPIO8
D11
T23
GRFC7_GPIO10
GRFC8_GPIO11
B4
GRFC9_GPIO12
D5
T19
GRFX6_GPIO9
GPIO66
F8
GP_PDM1_PA_RAN_GE0
H17
GP_PDM2_PA_RAN_GE1
D17
GRFC0_GPIO3
B8
DAC_REF
F12
GPIO28
A6
GPIO43
H9
J21
CAMCLK_PO_GP_MN_GPIO13
K19
AUX_PCM_CLK_GRFC14_GPIO80
AUX_PCM_DIN_GRFC13_GPIO14
N21
G4
AUX_PCM_DOUT_GRFC12_GPIO103
J8
AUX_PCM_SYNC_GRFC11_GPIO102
TP201
33nF
C239
R212
2K
PA_ON1
JTAG_TCK
ANT_SEL3
VGA_CAM_PWDN
PA_ON2
CAM_MCLK
SPK_AMP_EN
LCD_RESET_N
LCD_IF_MODE
DAC_REF
ANT_SEL0
ANT_SEL2
ANT_SEL1
GSM_SAW_SW_MODE
GSM_PA_BAND
GSM_PA_EN
PA_R0
TX_IM
TX_IP
RX_IP
RX_IM
JTAG_TDI
JTAG_TDO
JTAG_TMS
JTAG_TRST_N
TX_AGC_ADJ
TX_ON
FOLDER_DETECT
HOOK_SENSE
TCXO_EN
RX_QM
RX_QP
TX_QP
TX_QM
JTAG_RTCK
TRK_LO_ADJ
Содержание CU405
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