Issue 2 06/2005 COMPANY CONFIDENTIAL 9
Copyright © 2005 Nokia. All Rights Reserved.
RH-53/54
8-System Module Nokia Customer Care
Introduction
This document specifies the baseband module for the RH-53/54 platform program. The base-
band module includes the baseband engine chipset, the UI components and the acoustical
parts for the transceiver.
RH-53/54 is a hand-portable dualband GSM/GPRS 900/1800MHz fold-phone, having the
DCT4 generation baseband (UEM/UPP) and RF (MJOELNER) circuitry. The RH-53 platform
also supports a GSM 850/1900 US variant called RH-54. RH-53 platform is based on common
baseband engine 4.0.
■ Technical Summary
The baseband module contains 2 main ASICs named the UEM and UPP. The module further-
more contains a Combo Flash IC of 64Mbit flash and 16Mbit RAM.
Figure 1:RH-53/54 bb block diagram
Interface
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