User Guide

CCS Technical Documentation System Module
NPM-2NX
Issue 1 07/02 ãNokia Corporation Page 55
Regulators
Regulators VR2 and VR7 could potentially be overloaded in absolute worst case condi-
tions. Such an overload will not affect the reliability of the phone but could mean that
the regulator is no longer fully specification compliant. RF current self tests in produc-
tion is used to monitor the number of phones that this applies to.
The figures are divided between Safari_GTE + discretes (and LB/HB for typical).
Functional Description
Block diagram
NPM-2NX RF Block diagram is shown below. This has been obtained from DCA00035 in
DocMan with the BB blocks removed for clarity.
Regulator
name
Output
voltage
(V)
Regulator
Max. current
(mA)
RF Typ
Current
Requirement
(mA)
RF Max Current
Requirement
(mA)
Notes
VR1A 4.75 ±
3%
5 2 3 10mA total for
VR1A and VR1B
VR1B 4.75 ±
3%
5 3.8 5
VR2 2.78 ±
3%
100 38+53 =91 44+61=105
VR3 2.78 ±
3%
20 2.5+5=8 3+5=8
VR4 2.78 ±
3%
50 29 40
VR5 2.78 ±
3%
50 5 5
VR6 2.78 ±
3%
50 5 5
VR7 2.78 ±
3%
45 23.3/
32.3+9.5=32.
8/41.8
42+11.5 =53.5
IPA1, IPA2 2.7 max. 5 ± 6% 3 3.3
VREFRF01 1.35 ±
1.15%
100uA 5nA
VFLASH1 2.78 ±
3%
70 2.4 3