LG GT350 - Rf Block Diagram; Mobile Switch

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Only for training and service purposes
LGE Internal Use Only
3. TECHNICAL BRIEF
LG Electronics 51/115 LGE Property
III-2. RF circuit
*RF Block Diagram
Figure 22 GT350 RF part Block Diagram
PAM(SKY77344)
FEM
ANT
Mobile Switch
PMB 6272
Revision A1.1
Confidential
Product Specification 19 Rev A1.1, 19-05-2006
2.3 Functional Block Diagram
fast
PFD
Integrated
3.8GHz VCO
Sigma-Delta
MASH Modulator
multi modulus divider
26 MHz
VCO
control
fast
CP
3-wire
bus
Sequencing
NI.NF
MOD
w

w2
OLG
adjust
Timing
&
Measure
ment
on chip
loop filter
DAC
cordic
I/Q
=>
R/F
d/dt
I
Q
w

w2
VCO-LDO
26
MHz
ADC
ADC
Bias
Bias DAC
A/AX
B/BX
EN
DA
CLK
XO/
XOX
FSYS1
FSYS2
FSYS3
RX1/RX1X
850MHz
RX2/RX2X
900MHz
RX3/RX3X
1800MHz
RX4/RX4X
1900MHz
TX1
850/900MHz
TX2
1800/1900MHz
VBIAS
R_
O
C
V
2
2
2
2
PGA
6dB
Dig
PGA
PGA
1dB
.125dBRamp
FEM
Control
FE1
FE2
SMARTiPM_Blockschaltbild_20060412.emf
Figure 3 Functional Block Diagram
PMB6272 SmartiPM