Loop test Input terminal Output
terminal
Path
gain
[dB]
(fixed)
Input
volta
ge
[mVp-
p]
Differen
tial
output
voltage
[mVp-p]
Outpu
t DC
level
[V]
Outp
ut
curre
nt
[mA]
External Mic to Internal
Handsfree
XMICP and GND B2102 pads 32 100 - 0 80m
A +/-
10m
A
Internal Mic to External
Earpiece
B2100 (OUT/
GND)
XEARL and
GND
35 100 1360 0 NA
XEARR and
GND
Measurement data
Figure 39 Single-ended output waveform of the Ext_in_HP_out measurement when earpiece is connected.
Figure 40 Differential output waveform of the Ext_in_IHF_out out loop measurement when speaker is connected.
RM-88
BB Troubleshooting and Manual Tuning Guide Nokia Customer Care
Issue 1 COMPANY CONFIDENTIAL Page 6 –35
Copyright © 2006 Nokia. All rights reserved.
To Next Page
Loading...
