User Guide

RH-30/RH-31 Company Confidential
System Module Nokia Customer Care
Page 24 © 2004 Nokia Corporation. Issue 2 11/2004
Internal signals and connections
Internal microphone
Internal speaker
Integrated HF speaker
Signal Min. Nom Max Condition Note
MICP 200mV
pp
AC 2.2kΩ to
MIC1B
MICP
2.0 V 2.1 V 2.25 V DC
MICN 2.0V 2.1V 2.25V DC MICN
Signal Min. Nom Max Condition Note
EARP
0.75V 0.8V
2.0 V
pp
0.85V
AC
DC
Differential output
(V
diff
= 4.0 V
pp
)
EARP
EARN
0.75V 0.8V
2.0 V
pp
0.85V
AC
DC
EARN
Signal Min. Nom Max Condition Note
IHFP
0.75V 0.8V
2.0 V
pp
0.85V
AC
DC
Differential output
(V
diff
= 4.0 V
pp
)
IHFP
IHFN
0.75V 0.8V
2.0 V
pp
0.85V
AC
DC
IHFN