Block Diagrams; Rf Solution Block Diagram - Samsung SGH-P270 Service Manual

7. Block Diagrams

7-1. RF Solution Block Diagram

(LSHS-D085UK)
ANT RX
Duplexer
TX
3G PAM (RF3266)
FEM
Vcc1
RF out
Output Inter-Stage
AMP
Matching Matching
GaAs SW
RF out
UMTS TRX1
Integrated
Power
UMTS TRX2
Bias Circuit
Detector
UMTS TRX3
VDET
Vreg Vmode Vccbias
GSM850/900 TX
LPF
DCS/PCS TX
LPF
GSM850 RX
SAW
GSM900 RX
SAW
DCS RX
SAW
PCS RX
SAW
VC1
VC2
VC3
VC4
Vdd
2G PAM (RF3159)
HB_RFOUT
Integrated
LB_RFOUT
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VCCTX
RF_DAC2
DAC
Vcc2
DAC
RF_DAC1
3G TRANSCEIVER
RF in
(UAA3582)
Input
AMP
Matching
MIX1_B
S
A
W
MIX1_A
VCCRX
LNA1_OUT
LNA
LNA
LNA
LNA
0 / 90
HB_RFIN
BAND_SEL DVGA
TX_EN
VBATT
DVGA
Power
Control
VMODE
RAMPOUT
VRAMP
PA
CTRL
HB_RFIN
7-1
VGACTL
REG
DATA
RF
FRAC'N
CLK
SYNTH
EN
REFIN
RXIA
BB3G_RXIP
RXIB
BB3G_RXIN
RXQA
BB3G_RXQP
RXQB
BB3G_RXQN
RF
FRAC'N
SYNTH
REG
LNA1_IN
I
PGA PGA
ADC
I
Q
PGA PGA
ADC
Q
LOW-IF
Φ
DET
RAMPIN
AVGA
AVGA
XOUT
VCO+FREQUENCY
DCXO
SYNTHESIZER
AFC
2G TRANSCEIVER
26MHz
(AERO4221)
MODEM
(PNX5217)