User Guide

NPE-4

2 - Broadband System PAMS Technical Documentation

Page 2-6 ãNokia Corporation. Original

Technical Summary

Figure 1 NPE-4 baseband block diagram

A draft block diagram is shown in Figure 1 NPE-4 baseband block diagram.

The baseband module contains 2 ASICs namely the Universal Energy Management (UEM)

and the Universal Phone Processor (UPP). The baseband module furthermore contains the

Bluetooth module. The baseband is based on the DCT4 engine program.

The UEM supplies both the baseband module as well as the RF module with a series of

voltage regulators. The RF module is supplied with regulated voltages 4.75 V and 2.78 V

and the baseband module with 2.78 V and 1.80 V. The UEM is furthermore supplying the

baseband SIM interface with a programmable voltage of either 1.8 V or 3.0 V and the

core of the UPP is supplied with a programmable voltage of 1.0 V, 1.3 V, 1.5 V or 1.8 V.

The UEM contains a series of PWM sourced drivers. The individual PWM signals are gen-

erated internally within the digital part of the UEM and distributed to the drivers. The

UEM

UPP

SIM FLASH

Battery

CBUS/

DBUS

Supplies

RF Supplies

DCT3 System connector

Bluetooth

IRDA

RF RX/TX

PA Supply

MBus/FBus

External Audio

Charger connection

CBUS

USART

HAGAR

13MHz

SLEEPCLK

32kHz

26MHz

Baseband

MEMADDASIMIF

VIBRA

BUZZO

EAR

MIC

DLIGHT

KLIGHT