User Guide

Phone description
Introduction
This chapter describes the baseband 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-164 is a quadband phone operating on the GSM850/900/1800/1900 bands.
The phone is a slide phone, with one main part and one top flexible PWB.
Main board includes: BB and RF blocks, Bluetooth, etc.
Flexible PWB includes: LCD display, keyboard and earpiece
Characteristic components
Function Name Item
RF ASIC Ahne N7505
Energy management Retu
Tahvo
D2200
N2300
Main processor RAPGSM D2800
Memory Combo: 256 Mbit SDRAM, 256 Mbit NOR, 1Gb NAND flash D3000
Front end module Power amplifier and Antenna Switch N7520
Antenna Antenna module assy (in acoustic chamber) I226
System connector Micro USB X2000
Battery BP-5M, 3.7 V, 900mAh, Li-Polymer
Fold detection 1 MR sensor and 1 permanent magnet (IHF speaker) Sensor: N2400
(flexible PWB)
Bluetooth BC4-ROM N6000
FM radio TEA57601, single chip N6000
IHF Speaker In acoustic chamber B2101
Earpiece 7/11 B2101
Microphone B2201
Vibra VIBRA MOTOR M2100
Charger connector Micro USB X2000
Camera 2 Mpix SMIA85, no flash light X6600
LED driver N2301
RTC G3300
RM-164
System module
Issue 1 COMPANY CONFIDENTIAL Page 5 –5
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