Modes Of Operation - Nokia RH-64 Service Manual

RH-64
Nokia Customer Care System module
Figure 144 Power connection diagram
All connectors going to the "outside world" have filter components, ESD protection and EMC reduction.
The Digital/Data lines on SIM have special dedicated filter ASIP. The below figure show the SIM filtering.
Figure 145 SIM filtering
The Audio circuit: Earpiece, IHF, internal microphone and external speaker are filtered with discrete components
(common mode reduction coils, Varistors, caps and resistors), where as the external microphone uses
differential mode mic. ASIP
The 16 UEMECLite BB & RF regulators are specified to have a decoupling cap of 1 µF ±20%.

Modes of operation

BB4.0 LiteV2 base band has five different functional modes, which are defined in UEMCLite specification:
Page 8–8 Company Confidential 9243363 (Issue 1)
Copyright ©2005 Nokia. All Rights Reserved.