User Guide

CCS Technical Documentation System Module and User Interface
NPM-6/6X
Issue 2 06/03 Nokia Corporation. Page 23
Internal Signals and Connections
FM Radio Interface
BB Signal
FM Radio
Signal
Min. Nom Max Condition Note
VFLASH2 Vcc1 2.7V 2.78V 2.86V max. Icc1 19mA
Vcc2 2.7V 2.78V 2.86V max. Icc2 800uA
VDD 2.7V 2.78V 2.86V max. IDD 3mA
GenIO(3) FMClk 1.4V
0
1.8V 1.88V
0.4V
High
Low
Reference clock for
FM radio module
75581 kHz Frequency In GSM
30ppm Stability
2 µs
t
rise
rise / fall time
GenIO(8) FMWrEn 1.4V
0V
1.8V 1.88V
0.4V
High
Low
20µst
wd
FMWrEn high before
rising edge of FMC-
trlClk (write opera
tion)
GenIO(11) FMCtrlClk 1.4V
0
1.8V 1.88V
0.4V
High
Low
max. 300kHz
1 µst
r
/ t
f
rise / fall time
50 ms t
start
FMCtrlClk delay after
switching on the
VFLASH2 (oscillator
running)
GenIO(12) FMCtrlDa 1.4V
0
1.8V 1.88V
0.4V
High
Low
Bidirectional
14us t
da
shift register availa-
ble after "search
ready"
10 µst
shift
data available after
FMCtrlClk rising
edge (read opera-
tion)
1.5 µst
hold
FMCtrlDa stable
after FMCtrlClk ris-
ing edge (write opera
tion)
GenIO(27) FMTuneX 1.4V
0
1.8V 1.88V
0.4V
High
Low
from FM module to
UPP (FMCtrlClk = '1')