Phone description
Introduction
This chapter describes the system module including engine, power management, interfaces, audio etc.
The baseband is based on BB5.0 with a RAPGSM main processor and Retu/Tahvo energy management. All
blocks that require high voltage process are in Tahvo and all other in Retu. The RF part is based on the ASIC
Ahne.
RM-237 is a monoblock phone, in which all electrical components are assembled into one PWB.
RM-237 operates on the GSM 900/1800/1900 bands.
Key components
Function
Name
Item
Energy management
Retu
Tahvo
D2200
N2300
Main processor
RAPGSM
D2800
Memory
Combo: 128 Mbit SDRAM & 256 Mbit NOR flash
D3000
RF ASIC
Ahne
N7505
Front end module
Power amplifier and Antenna Switch
N7520
Antenna
Antenna module assembly
RM-237: 900/1800/1900MHz
System connector
AV connector
mini USB connector
X2030
X2002
Battery
BL-5C, 3.7 V, 860 mAh
Bluetooth
BC4-ROM
N6030
FM radio
TEA5760
N6100
IHF Speaker
Donau or Aura (in antenna module assembly)
Earpiece
RDF-07A 32OHM 10.86x7.40.2.2
B2101
Microphone
Clapton
B2100
Vibra
SMD VIBRA MOTOR
M2100
Charger connector
2 mm Nokia charger interface
X2000
Camera
1.3Mpix Konica
HWA
STV0984N
D3300
Display
SEID or AUO 128X160
LED driver
TPS 61061 YZFR
N2301
RTC battery
311 size
G2200
RM-237
System module
Nokia Customer Care
Issue 1
COMPANY CONFIDENTIAL
Page 8 –5
Copyright © 2007 Nokia. All rights reserved.
Содержание 3110c
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