Engine Module; Baseband Module - Nokia RH-41 Series Technical Documentation Manual
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Also See for RH-41 Series:
- Assembly (6 pages) ,
- Troubleshooting instructions (36 pages) ,
- Disassembly (8 pages)
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CCS Technical Documentation
• storage temperature range: -40 to + 85
All of the EIA/TIA-136-270A requirements are not exactly specified over the temperature
range. For example, the RX sensitivity requirement is 3dB lower over the –30 - +60 °C
range.
Engine Module
Baseband Module
The core part of the transceiver's baseband (see the figure below) consists of two ASICs
— the UEM and UPP — and flash memory. The following sections illustrate and explain
these parts in detail.
RF IC
RFCLK
RFIC CTRL
19.44MHz
UPP
MEMADDA
MEMCONT
FLASH 16Mbit
LCD
Issue 2 09/2003
RF Supplies
RF RX/TX
PURX
RF RX/TX
SLEEPCLOCK
32kHz
CBUS/DBUS
AUDIO
BB Supplies
KLIGHT/ DLIGHT
PWR ON
BASEBAND
Figure 2: System Block Diagram
Nokia Corporation
o
C
UEM
EXTERNAL AUDIO
CHARGER CONNECTION
DCT4 System Connector
Confidential
RH-41
System Module
PA supply
BATTERY
EAR
MIC
BUZZER
Page 11
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