User Guide

PAMS Technical Documentation System Module & UI
NHM-8NX
Issue 1 05/02 ãNokia Corporation Page 11
Baseband – RF interface
Table 12: BB – RF interface description
t
PWL1
50 - - ns Serial clock low
pulse width
6 VDD
1
VDDI VDD digital
power supply
1.72 1.8 1.88 V
7 VDD
2in
VDD Booster
power supply
2.6 2.7
8
2.86 V VFLASH1
8 VLCD-
out
VOUT Booster out-
put
- - 12 V Decoupled to
GND on PCB
with 1uF
Signal name From To Parameter Min. Typ. Max. Unit Notes
RFICCNTRL (2:0) MJOELNER control bus
RFBUSEN1X UPP MJOEL-
NER
Logic "1" 1.38 - 1.80 V RF Chip select
Logic "0" 0 - 0.4 V
RFBUSDA UPP MJOEL-
NER
Logic "1" 1.38 - 1.80 V RF serial control
bus (bi-direc-
tional)
Logic "0" 0 - 0.4 V
RFBUSCLK UPP MJOEL-
NER
Logic "1" 1.38 - 1.80 V RF bus clock
Logic "0" 0 - 0.4 V
Clock System clock for phone
RFCLK MJOE
LNER
UPP Frequency - 26 - MHz System clock
UPP minimum
recommended
amplitude is
0.3Vpp.
Waveform: Sinus/
triangle
Signal ampli-
tude
0.3 1 1.37
6
Vpp
Duty cycle
(Mjoelner
spec.)
40 - 60 %
RFCONV (9:0) RF / BB analogue signals
RXIINP MJOE
LNER
UEM Voltage swing 1.35 1.4 1.45 V Positive in-phase
Rx signal
DC level 1.3 1.35 1.4 V
I/Q amplitude
mismatch
- - 0.2 dB
I/Q phase mis-
match
-5 - 5 Deg.
Data clock rate - - 13 MHz