Measurement data
Figure 13 Single-ended output waveform of the Ext_in_HP_out measurement when earpiece is connected.
If a special low-pass filter designed for measuring digital amplifiers is unavailable, the measurement must be performed with a
current probe and the input signal frequency must be 2kHz.
Figure 14 Differential output waveform of the Ext_in_IHF_out out loop measurement when speaker is connected.
RM-495; RM-496
BB Troubleshooting and Manual Tuning Guide
Issue 1 COMPANY CONFIDENTIAL Page 3 –29
Copyright © 2008 Nokia. All rights reserved.
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