User Guide

Loop Test Input
terminal
Output
terminal
Path Gain
[dB fixed]
Input
voltage
[mVp-p]
Differenti
al Output
voltage
[mVp-p]
Output
DC level
[V]
Output
current
[mA]
External Mic to
Internal
Earpiece
XMICP
and
GND
EarP and GND -4 1000 630 1.2
EarN and GND
External Mic to
Internal
handsfree
XMICP
and
GND
HFSP P 18.5 500 4300 0 ~200m
A
(calcul
ated)
HFSP N
HFSP RP
HFSP RN
Internal Mic to
External
Earpiece
MICP
and
GND
HSEAR P 22.5 100 1330 1.2
HSEAR N
HSEAR RP
HSEAR RN
Measurement data
Earpiece signal:
Figure 54 Single-ended output waveforms of the Ext_in_HP_out measurement when earpiece is connected.
Integrated hands free signal:
RM-100
Nokia Customer Care BB Troubleshooting and Manual Tuning Guide
Page 6 –56 COMPANY CONFIDENTIAL Issue 2
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