
NSB-9
System Module and User Interface
CCS Technical Documentation
Page 28
Nokia Corporation
Issue 1 04/03
FM Radio
FM radio circuitry used in NSB-9 is a single-chip electronically tuned FM stereo radio
with fully integrated IF selectivity and demodulation. The radio is completely adjust-
ment-free and does only require a minimum of small and low cost external components.
It has signal dependent mono/stereo blend [Stereo Noise Cancelling (SNC)]. The radio can
tune the European, US and Japan FM bands.
FM-radio digital interface 3-wire bus contains write/read, clock and data lines. The bus
operates at maximum clock frequency of 1MHz. Channel tuning and other controls are
controlled through serial bus interface by the MCUSW. Reference clock, 32kHz, is gener-
ated by the UPP CTSI block (32kHz from sleep clock)
Figure 3: FM radio digital interface.
UPP
TEA5767
FMClk
FMCtrlDa
FMCtrlClk
FMWrEn
VIO
W/R
SCL
SDA
XTAL2
GenIO(3)
GenIO(12)
GenIO(8)
GenIO(11)
Содержание NSB-9
Страница 14: ...NSB 9 CCS Technical Documentation Page 8 Nokia Corporation Issue 1 04 03 This page left intentionally blank ...
Страница 59: ...CCS Technical Documentation NSB 9 Series Transceivers Issue 1 04 03 Nokia Corporation Parts List ...
Страница 80: ...NSB 9 CCS Technical Documentation Page 2 Copyright Nokia All rights reserved Issue 1 04 03 ...
Страница 116: ...NSB 9 Company confidential CCS Technical Documentation Page 40 Copyright Nokia All rights reserved Issue 1 04 03 ...
Страница 143: ...CCS Technical Documentation NSB 9 Series Transceivers Issue 1 04 03 Nokia Corporation Service tools ...
Страница 166: ...NSB 9 Service tools CCS Technical Documentation Page 24 Nokia Corporation Issue 1 04 03 ...
Страница 175: ...CCS Technical Documentation NSB 9 Series Transceivers Issue 1 04 03 Nokia Corporation Troubleshooting Instructions ...