Nokia 8850 Manual Do Serviço
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NSM–2
System Module
P
AMS T
echnical
Documentation
Page 39
Issue 1 12/1999
Nokia Mobile Phones Ltd.
Power Distribution Diagram
VR
4
Vpc
SYNPWR
VXOENA
VBATT
VR
1
VR
2
VR
3
VR
5
VR
6
VR
7
VREF
BATTERY
PA
1.76 A
3.9 V
HAGAR RF–IC
RX / TX parts
RX / TX parts
PLL
VCTCXO
2 mA
LNA
6 mA
VCO
20 mA
HAGAR
bias ref
bias ref
COBBA
20 mA
analog
vsyn_2
vsyn_1
vrx
vxo
vtx
+buff.
TXC
TXP
(Hagar)
1.3 mA
7.7 mA
TX: 31.5 mA
RX: 18.5 mA
TX: 29 mA
RX: 26 mA
67 mA
V5V
4.7V
Reg
1.6 mA
vref_2