- 56 -
LGE Internal Use Only
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. RF Circuit Technical Brief
4. RF Circuit Technical Brief
rt\\\GGG
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Copyright
གྷ
2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
snlGpG|Gv G
4. RF Circuit Technical Brief
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
zr^^Z[W
LNA
Switch
SAW
MODE
FEM(LSHSP43QL-771)
-
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
PMB8878
S-GOLD®3H
PA_LEVEL
I/IX
Q/QX
H/LBAND
TXON_PA
AFC
RF_EN
RF_DA
RF_CLK
PA_LEVEL
PA_BAND
TXON_PA
MODE
3-Wire
Bus
interface
26MHz_MCLK
BT_CLK
Decoder
ANT_SW1
ANT_SW2
RF Control
Unit
GSM
Timer Unit
26MHz
VCTCXO
26MHz_MCLK
RF2.85V
VBAT
PA
Control
Hardware
RX
900MHz
3G DUPLEXER
Rx RF SAW
3G LNA
Tx RF SAW
3G PAM
Rx
Tx
PMB6821
(SM-Power)
RF2.85V
RF1.5V
VBAT
PA_EN
PA_MODE
PA_EN
PA_MODE
TXI/TXIX
TXQ/TXQX
EN/DATA/CLK
PMB6952(SMARTi PM)
LNA
Switch
MODE
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
PA_LEVEL
I/IX
Q/QX
TXON_PA
AFC
RF_EN
RF_DA
RF_CLK
PA_LEVEL
PA_BAND
TXON_PA
MODE
3-Wire
Bus
interface
26MHz_MCLK
BT_CLK
Decoder
ANT_SW2
RF Control
Unit
GSM
Timer Unit
26MHz
VBAT
PA
Control
Hardware
900MHz
3G BAND1
Rx RF SAW
3G LNA
3G PAM
Rx
Tx
PMB6821
(SM-Power)
RF2.85V
RF1.5V
VBAT
(SM-Power)
RF2.85V
RF1.5V
VBAT
PA_EN
PA_MODE
PA_EN
PA_MODE
TXI/TXIX
TXQ/TXQX
EN/DATA/CLK
RX
850MHz
3G BAND8
zr^^Z[W
LNA
Switch
SAW
MODE
FEM(LSHSP43QL-771)
-
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
PMB8878
S-GOLD®3H
PA_LEVEL
I/IX
Q/QX
H/LBAND
TXON_PA
AFC
RF_EN
RF_DA
RF_CLK
PA_LEVEL
PA_BAND
TXON_PA
MODE
3-Wire
Bus
interface
26MHz_MCLK
BT_CLK
Decoder
ANT_SW1
ANT_SW2
RF Control
Unit
GSM
Timer Unit
26MHz
VCTCXO
26MHz_MCLK
RF2.85V
VBAT
PA
Control
Hardware
RX
900MHz
3G DUPLEXER
Rx RF SAW
3G LNA
Tx RF SAW
3G PAM
Rx
Tx
PMB6821
(SM-Power)
RF2.85V
RF1.5V
VBAT
PMB6821
(SM-Power)
RF2.85V
RF1.5V
VBAT
PA_EN
PA_MODE
PA_EN
PA_MODE
TXI/TXIX
TXQ/TXQX
EN/DATA/CLK
PMB6952(SMARTi PM)
LNA
Switch
MODE
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
PA_LEVEL
I/IX
Q/QX
TXON_PA
AFC
RF_EN
RF_DA
RF_CLK
PA_LEVEL
PA_BAND
TXON_PA
MODE
3-Wire
Bus
interface
26MHz_MCLK
BT_CLK
Decoder
ANT_SW2
RF Control
Unit
GSM
Timer Unit
26MHz
VBAT
PA
Control
Hardware
900MHz
3G BAND1
Rx RF SAW
3G LNA
3G PAM
Rx
Tx
PMB6821
(SM-Power)
RF2.85V
RF1.5V
VBAT
(SM-Power)
RF2.85V
RF1.5V
VBAT
PA_EN
PA_MODE
PA_EN
PA_MODE
TXI/TXIX
TXQ/TXQX
EN/DATA/CLK
RX
850MHz
3G BAND8
- 51 -
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. TECHNICAL BRIEF
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
3.15 General Description
Switch
FEM
D5017
VCTCXO
PAM
TQM7M5005
RX
900MHz
BALUN
RX
850MHz
RX
1800MHz
RX
1900MHz
PMB6952
TX
850/900MHz
TX
1800/1900MHz
WCDMA 1900/2100
WCDMA 850/900
PAM
AWT6224
BALUN
DNI
BALUN
BALUN
LNA
BGA735
TX 850/900
TX 1900/2100
RX 850/900
RX 1900
RX 2100
GSM
RX
GSM
TX
WCDMA TX
WCDMA RX
XMM6070
(S-GOLD3H)
2G I/IX
2G Q/QX
2G_EN
2G_DATA
2G_CLK
2G_BS
TXON_PA
PA_LEVEL
PA_MODE
2G Control
Unit
26MHz
GSM PAM
CONTROL
3G RX I/IX
3G RX Q/QX
3G RX I/IX
3G RX Q/QX
AFC
26MHz
GSM/
3G
IQ
3G PAM
CONTROL
3G_PA_MODE
2G_BS
TXON_PA
PA_LEVEL
PA_MODE
3G_PA_MODE
3G_EN
3G_DATA
3G_CLK
3G Control
Unit
3G_VCC_TX
3G_LD
3G_MASTERON
2G_EN
2G_DATA
2G_CLK
3G_EN
3G_DATA
3G_CLK
3G_VCC_TX
3G_LD
3G_MASTERON
DUPLEXER
DUPLEXER
850/
900
1900
2100
850/
900
1900
2100
DNI
Short
Short
DNI
Short
Short
DNI
Band Selectable antenna
_\WV`WWVX_WWVX`WWVYXWW
[Figure 3.15-1] Block Diagram of RF part
GSM and EDGE. An analog I/Q baseband interface is provided. The HSCSD and GPRS/EDGE capable
synthesizer is fully integrated, including all RF oscillators. A reference oscillator buffer amplifier with three
outputs is provided to simplify clock distribution.
rt\\\GGG
\Y
Copyright
གྷ
2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
snlGpG|Gv G
4. RF Circuit Technical Brief
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
zr^^Z[W
LNA
Switch
SAW
MODE
FEM(LSHSP43QL-771)
-
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
PMB8878
S-GOLD®3H
PA_LEVEL
I/IX
Q/QX
H/LBAND
TXON_PA
AFC
RF_EN
RF_DA
RF_CLK
PA_LEVEL
PA_BAND
TXON_PA
MODE
3-Wire
Bus
interface
26MHz_MCLK
BT_CLK
Decoder
ANT_SW1
ANT_SW2
RF Control
Unit
GSM
Timer Unit
26MHz
VCTCXO
26MHz_MCLK
RF2.85V
VBAT
PA
Control
Hardware
RX
900MHz
3G DUPLEXER
Rx RF SAW
3G LNA
Tx RF SAW
3G PAM
Rx
Tx
PMB6821
(SM-Power)
RF2.85V
RF1.5V
VBAT
PA_EN
PA_MODE
PA_EN
PA_MODE
TXI/TXIX
TXQ/TXQX
EN/DATA/CLK
PMB6952(SMARTi PM)
LNA
Switch
MODE
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
PA_LEVEL
I/IX
Q/QX
TXON_PA
AFC
RF_EN
RF_DA
RF_CLK
PA_LEVEL
PA_BAND
TXON_PA
MODE
3-Wire
Bus
interface
26MHz_MCLK
BT_CLK
Decoder
ANT_SW2
RF Control
Unit
GSM
Timer Unit
26MHz
VBAT
PA
Control
Hardware
900MHz
3G BAND1
Rx RF SAW
3G LNA
3G PAM
Rx
Tx
PMB6821
(SM-Power)
RF2.85V
RF1.5V
VBAT
(SM-Power)
RF2.85V
RF1.5V
VBAT
PA_EN
PA_MODE
PA_EN
PA_MODE
TXI/TXIX
TXQ/TXQX
EN/DATA/CLK
RX
850MHz
3G BAND8
zr^^Z[W
LNA
Switch
SAW
MODE
FEM(LSHSP43QL-771)
-
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
PMB8878
S-GOLD®3H
PA_LEVEL
I/IX
Q/QX
H/LBAND
TXON_PA
AFC
RF_EN
RF_DA
RF_CLK
PA_LEVEL
PA_BAND
TXON_PA
MODE
3-Wire
Bus
interface
26MHz_MCLK
BT_CLK
Decoder
ANT_SW1
ANT_SW2
RF Control
Unit
GSM
Timer Unit
26MHz
VCTCXO
26MHz_MCLK
RF2.85V
VBAT
PA
Control
Hardware
RX
900MHz
3G DUPLEXER
Rx RF SAW
3G LNA
Tx RF SAW
3G PAM
Rx
Tx
PMB6821
(SM-Power)
RF2.85V
RF1.5V
VBAT
PMB6821
(SM-Power)
RF2.85V
RF1.5V
VBAT
PA_EN
PA_MODE
PA_EN
PA_MODE
TXI/TXIX
TXQ/TXQX
EN/DATA/CLK
PMB6952(SMARTi PM)
LNA
Switch
MODE
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
PA_LEVEL
I/IX
Q/QX
TXON_PA
AFC
RF_EN
RF_DA
RF_CLK
PA_LEVEL
PA_BAND
TXON_PA
MODE
3-Wire
Bus
interface
26MHz_MCLK
BT_CLK
Decoder
ANT_SW2
RF Control
Unit
GSM
Timer Unit
26MHz
VBAT
PA
Control
Hardware
900MHz
3G BAND1
Rx RF SAW
3G LNA
3G PAM
Rx
Tx
PMB6821
(SM-Power)
RF2.85V
RF1.5V
VBAT
(SM-Power)
RF2.85V
RF1.5V
VBAT
PA_EN
PA_MODE
PA_EN
PA_MODE
TXI/TXIX
TXQ/TXQX
EN/DATA/CLK
RX
850MHz
3G BAND8