User Guide

NHM–7
System Module & UI
PAMS Technical Documentation
Page 12
Issue 1 10/2001
 Nokia Corporation
NoteConditionMaxNomMinFM Radio
Signal
BB Signal
GenIO(12) FMCtrlDa
1.4V
0
1.8V 1.88V
0.4V
High
Low
Bidirectional
14us t
da
shift register
available after
”search
ready”
10 µs t
shift
data available
after
FMCtrlClk ris-
ing edge (read
operation)
1.5 µs t
hold
FMCtrlDa sta-
bile after
FMCtrlClk ris-
ing edge
(write opera-
tion)
GenIO(27) FMTuneX 1.4V
0
1.8V 1.88V
0.4V
High
Low
from FM mod-
ule to UPP
(FMCtrlClk =
’1’)
MIC3P FMAudio
228mV
pp
326mV
pp
460mV
pp
50dB S/N
2% Harmonic
distortion
Internal microphone
Signal Min Nom Max Condition Note
MICP
200mV
pp
AC
2.2kΩ to
MIC1B
2.0 V 2.1 V 2.25 V DC
MI
C
1B
MICN 2.0V 2.1V 2.25V DC
Internal speaker
Signal Min Nom Max Condition Note
EARP
0.75V 0.8V
2.0 V
pp
0.85V
AC
DC
Differential
out
p
ut
EARN
0.75V 0.8V
2.0 V
pp
0.85V
AC
DC
out ut
(V
diff
= 4.0
V
pp
)