H/W Sub System - LG KF690 Service Manual

3.9 H/W Sub System

3.9.1 RF Interface
A. RTR6235 (GSM Tx/Rx)
ESM6270 controls RF part(RTR6235) using these signals.
❏ SBST : SSBI I/F signals for control Sub-chipset
❏ 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 ESM6270 Tx data DACs
CAMCLK_PO_GP_MN_GPIO13
XMEM1_CS_N3_SDRAM1_CS_N1_GPIO77
UART2_DP_RX_DATA_GPIO89
AUX_PCM_CLK_GRFC14_GPIO80
AUX_PCM_DIN_GRFC13_GPIO14
AUX_PCM_DOUT_GRFC12_GPIO103
AUX_PCM_SYNC_GRFC11_GPIO102
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
H25
WDOG_STB_SBCK1_GPIO0
F26
SBDT1_GPIO1
H11
PA_ON1_GPIO2
D5
GRFC9_GPIO12
J21
A6
GPIO28
N19
USB_RX_DATA_GPIO29
W15
XMEM2_CS_N2_GPIO35
AA15
XMEM2_CS_N3_GPIO36
AE13
LCD_EN_GPIO37
H9
GPIO43
B6
SYNTH2_GPIO65
F8
GPIO66
AA1
XMEM1_CS_N1_GPIO76
Y6
L25
UART3_RFR_N_GPIO87
H6
F18
R213 2.2K
SYNTH0_GP_PDM0_GPIO92
H18
SBST1_GPIO93
H13
TX_AGC_ADJ
L13
TRK_LO_ADJ
F19
TCXO_EN_GPIO94
F17
PA_ON0
A12
Q_OUT_N
B12
Q_OUT
A13
I_OUT_N
B13
I_OUT
F12
DAC_REF
W23
Q_IM_CH1
V23
Q_IP_CH1
V25
I_IM_CH1
W25
I_IP_CH1
AA25
Q_IM_CH0
Y25
Q_IP_CH0
AB25
I_IM_CH0
AC25
I_IP_CH0
D17
GP_PDM2_PA_RAN_GE1
H17
GP_PDM1_PA_RAN_GE0
H15
TRST_N
D16
TCK
F15
TMS
D15
TDI
A17
TDO
H16
RTCK
K19
N21
G4
J8
H12
TX_ON_GRFC10
B4
GRFC8_GPIO11
T23
GRFC7_GPIO10
T19
GRFX6_GPIO9
D11
GRFC5_AUX_SBST_GPIO8
H10
GRFC4_AUX_SBCK_GPIO7
F10
GRFC3_GPIO6
D9
GRFC2_GPIO5
A8
GRFC1_AUX_SBDT_GPIO4
B8
GRFC0_GPIO3
G23
BT_CLK_GPIO25
F23
BT_SBST_GPIO24
E26
BT_SBCK_GPIO23
E25
BT_SBDT_GPIO22
H21
BT_TX_RX_N_GPIO21
R19
BT_DATA_GPIO20
A22
MDDIC_DATP
A23
MDDIC_DATN
B22
MDDIC_STBP
B23
MDDIC_STBN
[Fig. 3.13] Schematic of RF Interface of ESM6270
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3. TECHNICAL BRIEF
LIN_INVERTER
LIN_MOTOR_EN
CAM_MCLK
LCD_RESET_N
7/28
LCD_BL_EN
12/26
LCD_FPCB_DET
VGA_CAM_PWDN
MICROSD_DETECT
DIAL_DETECT1
RMT_INT
SPK_AMP_EN
VREG_MSMP_2.7V
FM_I2C_SCL 7/28
Near to MSM
EAR_MIC_LDO_EN
R214
TRK_LO_ADJ
2.2K
TCXO_EN
C238
33nF
TX_QM
TX_QP
TX_IM
TX_IP
DAC_REF
RX_QM
RX_QP
RX_IM
RX_IP
R216 2.2K
VREG_MSMP_2.7V
SUBPMIC_I2C_SDA
TOUCH_LDO_EN
FM_CONTROL
TX_ON
ANT_SEL2
ANT_SEL1
ANT_SEL0
FOLDER_DETECT_N
DIAL_PDN
7/24
FM_BUSEN
GSM_PA_BAND
GSM_PA_EN
VGA_CAM_RESET_N
R217
BT_CLK
100K
BT_SBST
BT_SBCK
BT_SBDT
BT_TX_RX_N
BT_DATA
LGE Internal Use Only