Nokia RM-561 - Receiver (RX); RF Description

Table 9 AV connector pins
Pin Signal name Direction Description
1, 2 HS_ GND - Ground)
3 HS_MIC Input Microphone
4 HS_EAR_R Output Audio out
5 HS_EAR_L Output Audio out
6 PLUG_DET Input Plug detection
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 RF ASIC.
RM-561
System Module
Issue 1 COMPANY CONFIDENTIAL Page 5 –13
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