User Guide

NPL-4/5
System Module and User Interface Nokia Customer Care
Page 20 Copyright © 2004 Nokia Corporation. All rights reserved. Issue 1 05/04
Table 5: AC and DC Characteristics of DCT4 RF-Baseband Voltage Supplies
Voltage 2.7 2.78 2.86 V
Current 50 MA
Noise
density
BW=100Hz.
.. 100kHz
Voltage 2.7 2.78 2.86 V
Current 30 MA
Noise
density
100Hz<f<2
kHz
70 nVrms/
sqrt(Hz)
2kHz<f<10
kHz
55
10kHz<f<3
0kHz
35
30kHz<f<9
0kHz
30
90kHz<f<3
MHz
30
Voltage 1.334 1.35 1.366 V Voltage
Reference
for
HELGO85
DCN2
op.amps.
Current 100
µA
Note
:
Below
600Hz
noise
density is
allowed to
increase 20
dB/oct
Temp Coef -65 65
µ
V
/C
Noise
density
BW=600Hz.
.. 100kHz
Note
Voltage
reference
for
HELGO85
bias block.
Not used
for
HELGO85
V
60 nVrms/
sqrt(Hz)
VrefRF02 UEMEK VB_EXT Voltage 1.334 1.35 1.366
VrefRF01 UEMEK HELGO85
VR7 UEMEK SHF VCO Supply for
SHF VCO
VR6 UEMEK HELGO85 Supply for
HELGO85
BB and
LNAs
240 nVrms/
sqrt(Hz)