List Of Features - Nokia RH-53 Manual
System module
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Also See for RH-53:
- Instructions manual (218 pages) ,
- Troubleshooting instructions (72 pages) ,
- Disassembly instructions manual (14 pages)
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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
for RF. The UEM is furthermore supplying the baseband SIM interface with a programmable
voltage of either 1.8 V or 3.0 V. 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.
UPP operates from a 26MHz clock, coming from the RF ASIC MJOELNER, the 26 MHz clock
is internally divided by two, to the nominal system clock of 13MHz. DSP and MCU contain
phase locked loop (PLL) clock multipliers, which can multiply the system frequency by factors
from 0.25 to 31.
The UEM contains a real-time clock, sliced from the 32768 Hz crystal oscillators. The 32768
Hz clock is fed to the UPP as a sleep clock.
The communication between the UEM and the UPP is done via the bi-directional serial busses
CBUS and DBUS. The CBUS is controlled by the MCU and operates at a speed of 1 MHz set
by SW. The DBUS is controlled by the DSP and operates at a speed of 13 MHz. Both proces-
sors are located in the UPP.
The UEM ASIC handles the interface between the baseband and the RF section. UEM pro-
vides A/D and D/A conversion of the in-phase, quadrature receive/transmit signal paths and
also A/D and D/A conversions of received and transmitted audio signals to and from the user
interface. The UEM supplies the analog signals to RF section according to the UPP DSP digital
control. RF ASIC MJOELNER is controlled through UPP RFBUS serial interface. There are
also separate signals for PDM coded audio. Digital speech processing is handled by the DSP
inside UPP ASIC.
UEM is a dual voltage circuit, the digital parts are running from the baseband supply 1.8V and
the analog parts are running from the analog supply 2.78V also VBAT is directly used by some
blocks.
The baseband supports both internal and external microphone inputs and speaker outputs.
RH-53/54 has two external serial control interfaces: FBUS and MBUS. These busses can be
accessed through production test pattern as described in section 8.
RH-53/54 transceiver modules are implemented on 8 layers and the surface are with selective
Ni/Au OSP.
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List of Features
RH-53 platform common features:
• Jack UI style 20 keys (with 4 ways scroll) ESD-proof layout, multiple keypress.
• Battery BL-4C
• UEMK
• UPP8Mv2.6/2.10 Lead Free
• Combo Flash 8MByte flash memory and 2MByte PSRAM (64Mbit+16Mbit)
• Power key integrated in keypad (common with End key)
• Internal vibra
• Colour display (colures 4096, resolution: 130 columns x 130 rows, technology:
CSTN)
10
COMPANY CONFIDENTIAL
Copyright © 2004 Nokia. All Rights Reserved.
RH-53/54
8-System Module
ISSUE 1 09/2004
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