LG HB620 Service Manual

3.10 H/W Sub System
3.10.1 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 : 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
LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. TECHNICAL BRIEF
- 61 -
(WCMDA 2100 PAM Enable)
R212
100K
W15
AA15
XMEM2_CS_N3_GPIO36
WDOG_STB_SBCK1_GPIO0
H25
AA1
XMEM1_CS_N1_GPIO76
XMEM1_CS_N3_SDRAM1_CS_N1_GPIO77
Y6
XMEM2_CS_N2_GPIO35
H6
UART2_DP_RX_DATA_GPIO89
L25
UART3_RFR_N_GPIO87
USB_RX_DATA_GPIO29
N19
F18
SYNTH0_GP_PDM0_GPIO92
B6
SYNTH2_GPIO65
TCK
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
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
MDDIC_DATP
MDDIC_STBN
B23
MDDIC_STBP
B22
AE13
LCD_EN_GPIO37
MDDIC_DATN
A23
A22
AB25
I_IM_CH0
V25
I_IM_CH1
AC25
I_IP_CH0
I_IP_CH1
W25
I_OUT
B13
I_OUT_N
A13
GP_PDM1_PA_RAN_GE0
H17
D17
GP_PDM2_PA_RAN_GE1
B8
GRFC0_GPIO3
A8
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
GPIO43
F8
GPIO66
F12
DAC_REF
A6
GPIO28
H9
G23
BT_CLK_GPIO25
R19
BT_DATA_GPIO20
E26
BT_SBCK_GPIO23
BT_SBDT_GPIO22
E25
F23
BT_SBST_GPIO24
BT_TX_RX_N_GPIO21
H21
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
C226
33nF
R211 2K
TP202
FOLDER_DETECT
RMT_INT
TCC_RESET_N
LCD_IF_MODE_0
LCD_RESET_N
RX_IP
RX_QM
RX_QP
TCC_INT
VC_IO_OFF
DAC_REF
PA_ON
CAM_SYSCLK
TCXO_EN
TRK_LO_ADJ
TX_AGC_ADJ
EAR_SENSE_N
V_CAM_RESET_N
RCV_EN
LCD_MAKER_ID
TCC_PWR_EN
TX_QM
TX_IM
GSM_PA_EN
TX_QP
TX_IP
ANT_SEL2
JTAG_TDI
JTAG_TCK
BT_DATA
GSM_PA_BAND
BT_SBDT
BT_SBCK
JTAG_TMS
JTAG_TDO
BT_SBST
BT_TX_RX_N
BT_CLK
TX_ON
JTAG_TRST_N
JTAG_RTCK
PA_R1
ANT_SEL0
ANT_SEL1
RX_IM
M_CAM_RESET_N
[Fig. 3.18] Schematic of RF Interface of MSM6280
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LG HB620 Specifications

General

Brand	LG
Model	HB620
Category	Cell Phone
Language	English