Nokia NHL-4J Schematics page 25

CCS Technical Documentation
Power Amplifier and Detection
1
A
B
RFout_900
RFout_1800_1900
DET
C
Last references:
D
C729
R715
L704
Issue 2 06/03
System Module Schematics
2 3
C723
15p
C720
33p
not_assembled
C719
1n0
C728
100p
C718 C729
1n0 56p
R709
1k2
R710
C715
3k9
56p
Nokia Corporation
4
L703
42R/100MHz
C724 C725
10n 4u7
C713
1n0
N700
RF9219E2.X
13 19
Iref_900 Vbat_900
27 Iref_ Vbat_ 21
1800/1900 1800/1900
7 6
Vbat_900 Mode
10 18
Vbat_900 Vpctrl_900
8 17
RFout_900 Vtxb_900
2 RFout_ 15
RFin_900
1800/1900
3 Vbat_ RFin_ 25
1800/1900
1800/1900
30 Vbat_ Vtxb_ 23
1800/1900 1800/1900
12 Vpctrl_ 22
Isense_900
C714
1800/1900
1n0
28 Isense_ 4
Identificat
1800/1900
14 DC_sense_ 11
Vtxlo_900
900
26 DC_sense_ Band_sel_ 29
1800/1900
1800/1900
1,5,9,16,20,24,31,32= GND
5
C730
C726 C727
27p
27p 150u_10V
R715
C703
Z700
897.5MHz
R706
OUT_UNBAL IN
IN
4R3
GND
L701
C707
22nH
1p8
B39901-B4179-U510
T700 C710
LDB211G8010C-001 15p
R750
3
0R
1
5
L702
4
C711
C709
4n7H
2p7 2
15p
R714
C704
NHL-4J/NHL-4JX
6
VBAT
Iref_1800_1900
Iref_900
MODE
R703
33R
VPCTRL_900
2R2
68n
VTXB_900
RFinM_900
27p
33nH
C706
L700
RFinP_900
27p
C705
RFinP_1800_1900
1p0
C708
RFinM_1800_1900
VTXB_1800_1900
R704
33R
VPCTRL_1800_1900
0R
68n
VTXLO_900
DC_sense
BANDSEL_1800_1900
VR6
A-25