System Connector Lines; Battery Connector Lines; Mbus And Fbus; Transceiver Interfaces - Nokia RH-41 Series Technical Documentation Manual

RH-41
System Module

System Connector Lines

System Connector signals that have EMC protection
Protection type VIN
ferrite bead (600
/199MHz)
ferrite bead (420 X
/100MHz)
spark gaps
PWB capacitors
RC-circuit
capacitor to X
ground

Battery Connector Lines

BSI and BTEMP lines are protected by spark gaps and the RC circuit (4k7 and 10n), in
which the resistors are size 0603.

MBUS and FBUS

The opening in the protective metal deck, underneath the battery, is so small that ESD
does not get into the MBUS and FBUS lines in the production test pattern.

Transceiver Interfaces

The tables in the following sections illustrate the signals between the various transceiver
blocks.

BB - RF Interface Connections

The BB and RF parts are connected together without a physical connector.
All the signal descriptions and properties in the following tables are valid only for active
signals, and the signals are not necessarily present all the time.
Note: In the following tables, the nominal signal level of 2.78V is sometimes referred to as 2.7V .
Page 24
XMIXP XMICN
X X
X X
X X
X
X X
Nokia Corporation
CCS Technical Documentation
XEARP XEARN
X X
X X
X X
X X
X X
Confidential
HEADINT MICP
X
X X
X X
X X
Issue 2 09/2003