NSW-5
System Module UT5U
PAMS Technical Documentation
Page 46
Issue 1 10/00
Nokia Mobile Phones Ltd.
Function
Unit
Max
Typ
Min
Parameter
To
From/
Control
Signal
name
SCLK
MAD
(SCU
EROTUS,
UHF
Logic high ”1”
2
V
Synthesizer
d
l l
k
(SCU,
SCLK)
UHF
PLL
Logic low ”0”
0.8
V
and control clock
SCLK)
PLL
tdma1900 Load resistance
50
k
Load capacitance
20
pF
Data rate freq.
1.62
MHz
SDATA
MAD
(SCU
EROTUS,
UHF
Logic high ”1”
2.0
V
Synthesizer
d
l d
(SCU,
SDATA)
UHF
PLL
Logic low ”0”
0.8
V
and control data
SDATA)
PLL
tdma1900 Load resistance
50
k
Load capacitance
20
pF
Timing accuracy
20
us
SENA1
MAD
(SCU
EROTUS
Logic high ”1”
2.0
V
Synthesizer
d E
l
(SCU,
SENA1)
Logic low ”0”
0.8
V
and Erotus control
enable
SENA1)
Load resistance
50
k
enable
Load capacitance
20
pF
SENA2
MAD
(SCU
UHF
PLL
Logic high ”1”
2.0
V
TDMA1900 UHF
h
i
bl
(SCU,
SENA2)
PLL
tdma1900
Logic low ”0”
0.8
V
synthesizer enable
SENA2)
tdma1900
Load resistance
50
k
Load capacitance
20
pF
SPWR3
Cob-
ba_D
RF
2v8
Logic high ”1”
2.0
V
Supply voltage VR10
ON
regul.
Logic low ”0”
0.5
V
Supply voltage VR10
OFF
Current
100
uA
DSP
timing inaccuracy
200
us
DSP
TXA
MAD
EROTUS
Logic high ”1”
2.0
V
Power control loop
mode during tx burst
(MFI,
TXA)
Logic low ”0”
0.5
V
Power control loop
mode during ramp
up/down
Load resistance
10
k
Load capacitance
20
pF
Timing inaccuracy
10
us
DSP
TXC
Cob-
ba_D
EROTUS
Voltage Min value
Max value
0.12
2.27
0.15
2.30
0.18
2.33
V
Makes transmitter
power ramps and
t t
itt
Load resistance
10
k
sets transmitter pow-
er
Load capacitance
10
pF
er
level
Number of bits
10
TXF
ERO-
TUS
MAD
Logic high ”1”
2.0
3.0
V
False transmission
i di
t
f
ti
TUS
Logic low ”0”
0
0.5
V
indicator, function
controlled via Erotus
Load capacitance
10
pF
controlled via Erotus
register
