Nokia NSW-5 Series Service Manual page 57

PAMS Technical Documentation
RF/BB interface signals
CCONT (baseband) control signals are included in table below. These
control signals are printed in italics.
Signal From/
name Control
VBAT battery
VREF CCONT
VR1 CCONT Erotus,
/ VCTCXO,
RFCEN
VR2 CCONT Erotus,
/
SPWR1
VR3 CCONT
/
SPWR2 LO–buff,
(via TX mixer
serial serial
bus) )
VR4 CCONT Erotus,
/ VCTCXO
RXPWR IF1–amp
1 1
VR5 CCONT Erotus,
/ TX pwr
TXPWR
1 1
VR7 CCONT
TXP1
Issue 1 10/00
To Parameter
RF Voltage
2V8
regul.
Voltage during TX
Current
Erotus Voltage
Current
Voltage
2GHz
PLL
Current, tdma 800
Current, tdma1900
Voltage
UHF
VCO1
Current, tdma800
Current, tdma1900
VHF– Voltage
VCO,
Current, tdma800
Current, tdma1900
Voltage
Current, anal.RX
Current, digi.RX
Voltage
control
Current, TX–mode
TX PA Voltage
Current, tdma800
E Nokia Mobile Phones Ltd.
System Module UT5U
Min Typ Max Unit
3.1 3.6 5.3 V
3.0 3.6 5.0 V
1200 mA
1.485 1.50 1.522 V
10 uA
2.7 2.8 2.9 V
3.0 7 9 mA
3.0 17 19 mA
2.7 2.8 2.9 V
14 16 20 mA
off mA
2.7 2.8 2.9 V
20 24 30 mA
4 9 12 mA
2.7 2.8 2.9 V
10 12 15 mA
30 32 34 mA
2.7 2.8 2.9 V
33 37 41 mA
2.7 2.88 2.95 V
55 60 mA
NSW-5
Function
Supply voltage for
discrete 2V8 regula-
tors in dual band
phone
EROTUS reference
voltage
Supply for VCTCXO,
and Erotus VHF
prescaler, VCO and
bias,
2 GHz PLL
Supply voltage for
tdma 800 UHF VCO
and prescaler
Supply for VHF VCO,
LO buffer, tdma800
TX mixer and TXF
Supply for Erotus
IF–parts, IF1–amp.,
VCTCXO multiplier
Supply for Erotus
modulator, TX pwr
control
TX PA bias and TX
driver regulator
enable
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