Control Signals - Nokia NSB-7 Series Service Manual

NSB-7
System Module

Control Signals

VXCO SYNTH
PWR PWR
L L
H H
H H
H H
H H
All regulators are connected to HAGAR and directed with SYNTPWR. Different modes are
switched on via serial bus.
All control signals are coming from MAD2 (2.8 V logic signals).
List of the needed supply voltages:
Volt. source
V5V
VR5
VR1
VR2
VR4
VR3
VR6
VREF_2
RXREF (COBBA)
TXVGSM (Hagar)
TXVDCS (Hagar)
TXVDET (Hagar)
Vbatt
Page 46
RX TX
PWR PWR
L L
L L
H L
L H
L H
Name of the supply Load
VCP
VTX
VXO
VRX
VSYN_2
VSYN_1
VBATT
ãNokia Mobile Phones Ltd.
PAMS Technical Documentation
TXP
L
L
L
L
H
PLL charge pump, VCO
TX modulator
VCTCXO
HAGAR IC
(LNA2+mixer+DTOS)
HAGAR IC (div+LO-buff+prescaler)
LNA + HAGAR (Vdd_bb)
COBBA analog parts
ref. voltage for HAGAR
ref. voltage for HAGAR
Ant. sw. GSM
Ant. sw. DCS
Power detector
RF regulators in CCONT, PA
Typ.curre
Notes
nt cons.
<10 uA Leakage current
(PA)
28 mA Synthesizer
81 mA RX active
138 mA TX active except
PA
1700 mA TX active, full
power
Issue 1 06/00