– 5-2 –
Figure 5.1. : RF Function Block Diagram
5.1.2. RF Function Block
Serial
Interafce
GSM900
GSM1800
:2/:4
N divider
Phase
Comp.
Phase
Comp.
3.6GHz
R div.
M div.
LNA900
LNA1800
VC1
VC2
F321
F322
PA ENA
LNA900IN
LNA1800IN
U321
TR SW
ENB
ENB
ENB
ENB
U301
PA
ENB
ENB
I
Q
I
Q
PAD
APC