- 50 -
LGE Internal Use Only
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. RF Circuit Technical Brief
GM310f service manual
4.1 General Description
The PMB 6952 SMARTi 3GE combines the SMARTiPM quad-band GSM/EDGE and SMARTi3G triple-
band W-CDMA transceivers in a laminate based PG-TFSGA-121-2 package. A significant circuit board
area reduction is achieved compared to using separately packaged transceivers. SMARTiPM is a
quad-band transceiver for GSM850/GSM900/GSM1800/GSM1900 voice and data applications.
SMARTiPM features a direct conversion receiver and a quad-band polar modulator transmitter for
[Figure 4.1-1] Block Diagram of RF part
PMB6272(SMARTi PM)
TQM7M5005
LNA
Switch
SAW
MODE
FEM(LSHS-
C085FB)
PGA
Polar
Modulator
/4
/2
3.8GHz
Fractional
N
-PLL
ADC
Sigma
-Delta
Modulator
Loop filter
RX
1800MHz
RX
1900MHz
TX
850/900MHz
TX
1800/1900MHz
PMB8877
(S
-
GOLD3)
PA_LEVEL
I/IX
Q/QX
PA_BAND
TXON_PA
VC2
VC3
AFC
RF_EN
RF_DA
RF_CLK
PA_LEVEL
PA_BAND
TXON_PA
MODE
3-
Wire
Bus
interface
26MHz_MCLK
BT_CLK
Decoder
ANT_SW
1
ANT_SW2
RF Control
Unit
GSM
Timer Unit
26MHz
VCTCXO
26MHz_MCLK
RF2.8V
VBAT
PA
Control
Hardware
TX
900MHz
3G DUPLEXER
Rx RF SAW
3G LNA
Rx RF SAW
Rx
Tx
PA_EN
PA_MODE
TXI/TXIX
TXQ/TXQX
EN/DATA/CLK
PMB6272(SMARTi PM)
TQM7M5005
LNA
Switch
SAW
MODE
FEM(LSHS-
C085FB)
PGA
Polar
Modulator
/4
/2
3.8GHz
Fractional
N
-PLL
ADC
Sigma
-Delta
Modulator
Loop filter
RX
1800MHz
RX
1900MHz
TX
850/900MHz
TX
1800/1900MHz
PMB8877
(S
-
GOLD3)
PA_LEVEL
PA_BAND
TXON_PA
VC2
VC3
AFC
RF_EN
RF_DA
RF_CLK
PA_LEVEL
PA_BAND
TXON_PA
MODE
3-
Wire
Bus
interface
26MHz_MCLK
BT_CLK
Decoder
ANT_SW
1
ANT_SW2
RF Control
Unit
GSM
Timer Unit
26MHz
VCTCXO
RF2.8V
VBAT
PA
Control
Hardware
TX
900MHz
3G DUPLEXER
Rx RF SAW
Rx
PMB6821
(SM-
Power)
RF2.85V
RF1.5V
VBAT
PMB6821
(SM-
Power)
RF2.85V
RF1.5V
VBAT
3G PAM
PA_EN
PA_MODE
3G PAM
PA_EN
PA_MODE
PA_EN
PA_MODE
TXI/TXIX
TXQ/TXQX
EN/DATA/CLK
3G PAM
PA_EN
PA_MODE
3G PAM
4. RF Circuit Technical Brief
Содержание GM310
Страница 1: ...Service Manual Model GM310 Internal Use Only Service Manual GM310 Date April 2009 Issue 1 0 ...
Страница 141: ... 142 LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 159: ... 160 LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes ...