3. TECHNICAL BRIEF
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3.10 H/W Sub System
3.10.1 RF Interface
A.
RTR6250(WCDMA_Tx, GSM_Tx/Rx)
MSM6250A controls RF part(RTR6250) using these signals.
• SBST,SBDT,SBCK : SBI I/F signals for control Sub-chipset
• PAON : Power AMP on RF part
• RX_I/Q,TX_I/Q : 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 MSM6250A
33n
C247
R216
51K
R218
51K
TP203
C248
0.1u
R217
10K
TP202
0.01u
C246
Y25
Q_IM_CH0
Y26
Q_IP_CH0
W21
I_IP_CH0
W26
I_IP_CH1(Reserved)
V21
I_IM_CH0
V25
I_IM_CH1(Reserved)
U21
Q_IM_CH1(Reserved)
U23
Q_IP_CH1(Reserved)
T23
ANT_SEL1_N_GPIO[10]
P26
GSM_PA_PWR_CTL
R19
ANT_SEL0_N_GPIO[9]
L19
RINGER_GPIO[18]
K23
GRFC[13]_GPIO[82]
L14
TX_AGC_ADJ
J25
GRFC[14]_GPIO[83]
J26
GRFC[12]_GPIO[81]
K19
GRFC[11]_GPIO[80]
H14
TRK_LO_ADJ
H15
TRST_N
H16
RTCK
H17
PA_RANGE[0]_GP_PDM[1]
H10
TX_VCO_1_EN_N_GPIO[7]
H12
GRFC[10]_TX_ON
G21
BT_TX_RN_N_GPIO[21]
G23
BT_CLK_GPIO[25]
F15
TMS
F16
TDO
F18
TCXO_EN_GPIO[94]
F23
BT_SBST_GPIO[24]
D9
GSM_PA_BAND_GPIO[5]
E25
BT_SBDT_GPIO[22]
E26
BT_SBCK_GPIO[23]
F10
UHF_BAND_SEL_GPIO[6]
D26
BT_DATA_GPIO[20]
D11
TX_VCO_0_EN_N_GPIO[8]
D15
TDI
D16
TCK
B19
PA_ON[0]
B4
ANT_SEL2_N_GPIO[11]
B8
UHF_VCO_0_EN_GPIO[3]
B13
Q_OUT
B14
I_OUT
AD26
GSM_PA_PWR_CTL_REF
A20
PA_RANGE[1]_GP_PDM[2]
A8
GSM_PA_EN_GPIO[4]
A13
Q_OUT_N
A14
I_OUT_N
R215
51K
51K
R220
2K
R214
R213
1K
VREG_MSMP_2.7V
PA_R0
RCV_EN_N
51K
R219
VREG_MSMP_2.7V
GSM_TX_VCO_1_EN_N
GSM_TX_VCO_0_EN_N
RX_QM
RX_QP
RX_IM
RX_IP
JTAG_TRST_N
KEY_COL(6)
TX_AGC_ADJ
PA_ON
FOLDER_DETECT
TRK_LO_ADJ
GSM_PA_EN
TX_IM
TX_QM
GSM_PA_PWR_CTL_REF
JTAG_TCK
JTAG_TDI
ANT_SEL2
TX_IP
TX_QP
TCXO_EN
JTAG_TDO
JTAG_TMS
BT_SBCK
BT_SBDT
GSM_PA_BAND
BT_DATA
JTAG_RTCK
RF_ON_TX_ON
BT_CLK
BT_TX_RX_N
BT_SBST
ANT_SEL0
GSM_PA_RAMP
ANT_SEL1
Summary of Contents for U890
Page 1: ...Date April 2006 Issue 1 0 Service Manual Model U890 U890c Service Manual U890 U890c ...
Page 3: ... 4 ...
Page 20: ...3 TECHNICAL BRIEF 21 ...
Page 46: ...3 TECHNICAL BRIEF 47 Figure PM6650 2 Functional Block Diagram ...
Page 70: ...4 TROUBLE SHOOTING 71 4 2 SIGNAL PATH ...
Page 109: ...4 TROUBLE SHOOTING 110 CN600 50pin LCD connector CN901 C907 C911 FB901 FB902 ...
Page 115: ...4 TROUBLE SHOOTING 116 C226 C227 for MIC serial capacitor ...
Page 118: ...4 TROUBLE SHOOTING 119 Q400 Q401 Q402 VBATT GND ...
Page 139: ...Table 2 1 1 RF Block Component 6 BLOCK DIAGRAM 140 ...
Page 140: ...6 BLOCK DIAGRAM 141 6 2 Interface Diagram U890 Interface Diagram ...
Page 142: ...6 BLOCK DIAGRAM 143 Top Side ...
Page 143: ...6 BLOCK DIAGRAM 144 Bottom Side ...
Page 152: ... 153 8 pcb layout ...
Page 153: ... 154 8 pcb layout ...
Page 154: ... 155 8 pcb layout ...
Page 155: ... 156 8 pcb layout ...
Page 156: ... 157 8 pcb layout ...
Page 157: ... 158 8 pcb layout ...
Page 163: ...9 CALIBRATION 164 9 3 HOT KIMCHI Example Choose_U890 ...
Page 164: ...9 CALIBRATION 165 Click APPLY button Click START button ...
Page 165: ...9 CALIBRATION 166 Click Run button to lunch RF AUTOTEST ...
Page 167: ... 168 ...
Page 191: ...Note ...
Page 192: ...Note ...