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7-System Module
28
COMPANY CONFIDENTIAL
ISSUE 1 09/2004
Copyright © 2004 Nokia. All Rights Reserved.
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Power supply
All power supplies for the RF Unit are generated in the UEM IC (D200). All power outputs from
this IC has a decoupling capacitor at which the supply voltage can be checked.
this IC has a decoupling capacitor at which the supply voltage can be checked.
The power supply configuration is described in the block diagram below:
Figure 12: Power supply configuration
The names in bold
are sig
nal names used on the RF schematic pages. Names in the boxes
within the Mjoelner and the VCO refers to pin names on the respective ICs (N600, G600).
Table 14: Power supply signals
Supply name
RF
Supply name
UEM
Min
Typ
Max
Unit
VTX
VR2
2.64
2.78
2.86
V
VXO
VR3
2.64
2.78
2.86
V
VCP
VR1A
4.75
V
VPLL
VR5
2.64
2.78
2.86
V
VRX
VR6
2.64
2.78
2.86
V
VVCO
VR7
2.64
2.78
2.86
V
VBB
VIO
1.72
1.8
1.88
V
VREF2
VrefRF01
1.334
1.35
1.366
V
VBATT
BATTERY
3.1
3.6
5.2
V