Block Diagram - Samsung SGH-600 Service Manual

9. Block Diagram

9-1 RF Block Diagram
935 ~ 960 MHz
RX
SAW
Ant S/W
LPF
890 ~ 915 MHz
Samsung Electronics
RX
LNA SAW
filter
bias
circuit
1160 ~ 1185 MHz
LMX2336L
VCTCXO
13MHz
Dual
PLL1
synth.
TCO-999
P.A.
TX
SAW
225 MHz
IF
SAW
filter
270 MHz
/2
RF VCO
PLL2
540 MHz
270 MHz
Loop
filter
TX VCO
45 MHz
LC I & Q
AGC
filter Demo.
45 MHz
HD 155101BF
90 deg
Shift /2
/6
90 deg
Shift /2
270 MHz
270 MHz
Phase I & Q
Mod
Detector
I
O
B.B.
Block
I
O
9-1