Nokia 3555 Service Manual page 86

Loop test
terminal
External Mic to XMICP and
Internal GND
handsfree
Measurement data
Page 3 –38
Input Output
terminal
B2101 pads
Figure 9 External input Ear out
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BB Troubleshooting and Manual Tuning Guide
Path Input
gain [dB] voltage
(fixed) [mVp-p]
N/A 1000
RM-257; RM-270; RM-277
Differential Output
output DC level
voltage [V]
[mVp-p]
Square with 1.9
amplitude
equal to
VBAT
Output
current
[mA]
N/A
Issue 1