CCS Technical Documentation
System Module and User Interface
NSB-9
Issue 1 04/03
Nokia Corporation
Page 15
Table 8: AC and DC Characteristics of RF-Baseband Digital Signals
VrefRF0
1
UEM
VREF_RX
Voltage
1.33
4
1.35
1.36
6
V
Voltage Reference for
RF-IC.
Note:Below 600Hz
noise density is
allowed to increase 20
dB/oct
Current
100
uA
VrefRF0
2
UEM
VB_EXT
Voltage
1.32
3
1.35
1.37
7
V
Supply for RF-BB dig-
ital interface and
some digital parts of
RF.
Current
100
uA
Signal name
From
To
Parameter
Input Characteristics
Function
Min
Typ
Max
Unit
TXP
(RFGenOut3)
UPP
PA &
HAGAR
”1”
1.3
8
1.88
V
Transmitter
power amplifier
enable / DCN2
timing???
”0”
0
0.4
V
Load Resistance
10
220
kohm
Load
Capacitance
20
pF
Timing Accuracy
1/4
symb
ol
RFBusEna1X
UPP
HAGAR
”1”
1.3
8
1.88
V
RFbus enable
”0”
0
0.4
V
Current
50
uA
Load resistance
10
220
kohm
Load capacitance
20
pF
RFBusData
UPP
HAGAR
”1”
1.38
1.88
V
RFbus data;
read/write
”0”
0
0.4
V
Load resistance
10
220
kohm
Load capacitance
20
pF
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