Rf Description; Receiver (Rx) - Nokia RH-109 Service Manual

Internal audio
The internal audio components are used in these modes
MIC1
MIC2
LINE_IN
EARPICE
SPEAKER
LINE_OUT
HPH_OUT

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 (eg. to the earpiece).
The receiver functions are implemented in the QSC6055 RF block. Signals with different frequencies take
different paths, therefore being handled by different components.
QSC6055 System Module Description
Page 5-12
Hand Portable Mode
X
X
QSC6055
AWS RX
SPDT
Duplexer
SPDT
LNA
Duplexer
Duplexer
COMPANY CONFIDENTIAL
Copyright © 2008 Nokia. All rights reserved.
Headset Mode
X
X
SPDT
PCS RX 800 RX
SAW SAW SAW
CDMA antenna
PCS
SP3T
AWS
800
RH-109
System Module Description
Hand Free Mode
X
X
Issue 1