Nokia 2600 服务手册
ISSUE 1 09/2004
COMPANY CONFIDENTIAL
9
Copyright © 2004 Nokia. All Rights Reserved.
RH-59/60
7-System Module
Nokia Customer Care
RH-59/60, Nokia 2600
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Baseband HW iIntroduction
This document specifies the baseband module for the Nokia 2600. The baseband module in-
cludes the baseband engine chipset, the UI components and the acoustical parts for the trans-
ceiver.
cludes the baseband engine chipset, the UI components and the acoustical parts for the trans-
ceiver.
Nokia 2600 is a hand-portable dualband 900/1800MHz or Low band/High band phone, featur-
ing the DCT4 generation baseband (UEM/UPP) and RF (MJOELNER) circuitry.
ing the DCT4 generation baseband (UEM/UPP) and RF (MJOELNER) circuitry.
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Technical summary
The baseband module contains 2 main ASICs named the UEM and UPP. The baseband mod-
ule furthermore contains a Flash IC of 32Mbit. The baseband is based on the DCT4 engine pro-
gram.
ule furthermore contains a Flash IC of 32Mbit. The baseband is based on the DCT4 engine pro-
gram.
Figure 1: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 2.78 V
and 1.8V. UEM includes 6 linear LDO (low drop-out) regulators for baseband and 7 regulators
regulators. Both the RF and Baseband modules are supplied with regulated voltages of 2.78 V
and 1.8V. UEM includes 6 linear LDO (low drop-out) regulators for baseband and 7 regulators
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
EAR
MIC
DLIGHT
speaker
Buzzer
SIM
Flashlight
IHF
DCT4 connector