Figure 67 FM radio interface
RF description
Receiver (RX)
An analogue signal is received by the phone's antenna. The signal is converted to a digital signal and is then
transferred further to the baseband (e.g. to the earpiece).
The receiver functions are implemented in the RF ASIC.
Signals with different frequencies take different paths, therefore being handled by different components.
The principle of GSM and WCDMA is the same.
RM-424; RM-564
System Module
Issue 1
COMPANY CONFIDENTIAL
Page 6 –23
Copyright © 2009 Nokia. All rights reserved.
Содержание 6720 classic
Страница 133: ...4 RF Troubleshooting Nokia Customer Care Issue 1 COMPANY CONFIDENTIAL Page 4 1 Copyright 2009 Nokia All rights reserved ...
Страница 179: ...6 System Module Nokia Customer Care Issue 1 COMPANY CONFIDENTIAL Page 6 1 Copyright 2009 Nokia All rights reserved ...
Страница 209: ...Glossary Nokia Customer Care Issue 1 COMPANY CONFIDENTIAL Page Glossary 1 Copyright 2009 Nokia All rights reserved ...