User Guide

NPM-2NX
System Module CCS Technical Documentation
Page 30 ãNokia Corporation Issue 1 07/02
BB Internal connections
UEM Block Signal Description
Table 7: UEM Block SIgnals to UPP
VR2 UEM RFDis
cr./
RFIC
Out Vre
g
2.78 V
+- 3%
100 mA
max.
UEM linear regulator. Supply voltage for
Tx IQ filter and IQ to Tx IF mixer.
VR3 UEM VCTC
XO
Out Vre
g
2.78 V
+- 3%
20 mA
max.
UEM linear regulator. Supply for
VCTCXO + RFCLK Buffer in RF IC.
VR4 UEM RFIC Out Vre
g
--”-- 50 mA
max.
UEM linear regulator. Power Sup-
ply for LNA / RFIC Rx chain.
VR5 UEM RFIC Out Vre
g
--”-- 50 mA
max.
UEM linear regulator. Power Sup-
ply for RF low band PA driver sec-
tion.
VR6 UEM RFIC Out Vre
g
--”-- 50 mA
max.
UEM linear regulator. Power sup-
ply for RF high band PA driver
section.
VR7 UEM RFIC,
UHF
VCO
Out Vre
g
--”-- 45mA UEM linear regulator. Power sup-
ply for RF Synths
IPA1 UEM RF PA Out Iou
t
0-5 mA Settable Bias current for RF PA L-
Band
IPA2 UEM RFPA Out Iou
t
0-5 mA Settable Bias current for RF PA
H-band
VFLASH
1
UEM RFIC Out Iou
t
2.78V ~2mA UEM linear regulator common for
BB. RFIC digital parts and RF to
BB digi IF.
VR1 A UEM RFIC Out Vre
g
4.75 V
+- 3%
10 mA
max.
UEM, charge pump + linear regu-
lator output. Supply for UHF
synth phase det ….
VBATT, Global
VBAT-
TRF
Batt
Conn
RFPA Out Vb
att
3…5V 0…1A
2A peak
Raw Vbatt for RF PA
Ri
p
#
Signal
Name
DAMPS/
GSM19
00
Connected
from -- to
UEM
I/O
Signal Properties
A/D--Levels---Freq./
Timing resolution
Description / Notes
RFCONVDA(5:0)*
1.8V digital interface between UPP and UEM. RF Converter CLK, Rx and
Tx I&Q data (bit stream signals).
0 RFCON-
VCLK
UPP UEM In Di
g
0/1.8 V RF Converter Clock