User Guide

RM-4/RM-5
CCS Technical Documentation Engine Module
8 COMPANY CONFIDENTIAL ISSUE 1 02/2004
Copyright © 2003 Nokia. All Rights Reserved.
Baseband HW Introduction
This document specifies the baseband module for the Nokia 2300 phone. The baseband mod-
ule includes the baseband engine chipset, the UI components and the acoustical parts for the
transceiver.
Nokia 2300 is a hand-portable dual band 900/1800MHz phone, featuring DCT4 generation
baseband (UEM/UPP) and RF (MJOELNER) circuitry. Nokia 2300 is closely related to Nokia
3510 and 3510i
Technical Summary
The baseband module contains 2 main ASICs named UEM and UPP. The baseband module
furthermore contains a Flash IC of 16Mbit. The baseband is based on the DCT4 engine pro-
gram.
Figure 1: Nokia 2300 baseband block diagram
The UEM supplies both the baseband module as well as the RF module with a series of voltage
regulators. Both, the RF and baseband modules are supplied with regulated voltages of 2.78V
and 1.8V. The UEM includes 6 linear LDO (low drop-out) regulators for baseband and 7 regu-
lators for RF. The UEM is furthermore supplying the baseband SIM interface with a program-
RFBUS
UEM
UPP
FLASH
Battery
CBUS/
DBUS
BB
Supplies
RF Supplies
UI
DCT4 Janette connector
RF RX/TX
PA Supply
MBus/FBus
External Audio
Charger connection
Mjoelner
26MHz
SLEEPCLK
32kHz
Baseband
MEMADDA
M
VIBRA
IHF
EAR
MIC
DLIGHT
LM4890
AM/FM
Radio
SIM