Ac And Dc Characteristics Of Rf-Bb Voltage Supplies - Nokia NHM-7 series Service Manual

PAMS Technical Documentation
AC and DC Characteristics of RF–BB voltage supplies
Signal From
name
VBAT Battery PA & UEM
VR1A UEM VCP
VR2 UEM VRF_TX
VR3 UEM VCTCXO
VR4 UEM VRF_RX
VR5 UEM VDIG,
VPRE, VPRE
VLO VLO
VR6 UEM VBB
Issue 1 10/2001
To Parameter
Voltage
Current
Current drawn by
PA when "off"
Voltage
Current Current
Noise density
Voltage
Current
Noise density
f=100Hz
f>300Hz
Voltage
Current
Noise density
Voltage
Current
Noise density
f = 6 Hz
f = 60 Hz
f y 600Hz
Voltage
Current
Noise density
BW=100Hz...
100kHZ
Voltage
Current
Noise density
BW=100Hz...
100kHz
E Nokia Corporation
System Module & UI
Min Typ Max Unit
2.95 3.6 4.2 V
2000 mA
0.8 2 uA
4.6 4.75 4.9 V
2 2 10 10 mA mA
240 nVrms/
sqrt(Hz)
2.70 2.78 2.86 V
65 100 mA
120 nVrms/
sqrt(Hz)
2.70 2.78 2.86 V
1 20 mA
240 nVrms/
sqrt(Hz)
2.70 2.78 2.86 V
50 mA
5500 nVrms/
sqrt(Hz)
550
55
2.70 2.78 2.86 V
50 mA
240 nVrms/
sqrt(Hz)
2.70 2.78 2.86 V
50 mA
240 nVrms/
sqrt(Hz)
NHM–7
Function
Battery supply.
Cut–off level of
DCT4 regulators is DCT4 regulators is
3.04V. Losses in
pcb tracks and
ferrites are taken ferrites are taken
account to minimum
battery voltage
level.
Supply for varactor
for UHF VCO f UHF VCO
tuning. tuning.
Supply for part of
transmit strip. t it t i
Su Supply for TX ly for TX
I/Q–modulators.
Supply for VCTCXO
Supply for Hagar
RX; preamp., mixer,
DTOS
Noise density
decades 20dB/dec d d 20dB/d
from 6Hz to 600Hz.
From f >600Hz
maximum noise
density
55nV / Hz.
RMS
Supply for Hagar
PLL di id PLL; dividers, LO– LO
buffers, prescaler, buffers, rescaler,
Supply for Hagar
BB BB and LNA d LNA
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