User Guide

PAMS
Technical Documentation
NME–3
Technical Information
Page 42
Issue 1 10/99
LOOP
Coupler
Detector
935–960MHz
890–915MHz
LNA
Int
ers
tag
e
Fil
ter
Mixer
LNA
Mixer
71MHz
Analog RX AGC
C
ha
rg
eP
u
m
p
IN
Out
C
ha
rg
eP
u
m
p
Out
IN
232MHz
In
:4
Out
58Mhz
VPA
8Watt PA Module
116MHz
Digita
l TX
AGC
(Not
used
in
GSM)
TX Power Control
Det In
TXC
Bias Out
UHF Prescaler
VHF Prescaler
TQFP 64
PLUSSA
116MHz
:2
te
m
p
co
m
p
13MHz
1006–1031
PDATA0
RX
IN
P
RX
IN
N
RXC
SCLK
SDATA
SENA1
AFC
RFC
TXP
TXC
TXIP
TXIN
TXQP
TXQN
VXOENA
SYNPWR
RXPWR
TXPWR
VR1
VR2
VR3
VR4
VR5
V5V
VR7
VREF
VPA
VRX
VXO
VSYN
VVCO
VTX
(VRX)
VCP
VREF
82 mA
7 mA
72 mA
0 mA
32 mA
19 mA
4400 mA
100 uA
4 mA
60 mA
BB
Upc
onv
erte
r
V8PA
V8PA
IF
A
M
P
Vo
lta
ge
di
vi
de
r
10
9
8
7
25
23
21, 22 24, 27
RF
V
C
O
Bu
ffe
r
Figure 16. Block diagramm of the CD949 GSM RF part
buffer
int
ers
tag
e
filt
er
PLUSSA
CRFU_1
UHF
PLL
VHF
PLL
13 MHz
VCTCXO
232
MHz
f
f/2f/2
f
f
f/2
996–
1031
MHz
LO–
buffers
925–960
MHz
880–915
MHz
1st IF 71 MHz
2nd IF 13 MHz
TX IF 116 MHz
2nd LO
58 MHz
LO–
buffers
Figure 17. RF frequency plan