Level 3 Service Manual
GALAXY ASTRAL GEO GEO WAP
Mitsubishi Electric Telecom Europe SA
Version E
ZA le Piquet, 35370 Etrelles
Date: 04/00
Phone: +33 2 99 75 71 00
Fax: + 33 2 99 75 71 47
3/29
1
Block Diagram
1.1
Schematic
1.2
Description of Block Diagram.
1.2.1
IC300
One-C (VWS22100).
IC300 includes in one same chipset Base Band part, DSP, CPU, A/D, D/A converters, TDMA
framecounters, a TX GMSK modulator, a TX power ramping circuit, RX filters. IC300 carries out the
management of the battery charging, and of the audio part. It interfaces with the radio frequency
part.
1.2.2
IC100
IPD (Rohm BH6070KU).
IC100 provides the different powers supplies to RFBB board : 2.8RTC, PSTCXO, 2.8VANA, PSSYN,
2.8VAUD, VBAT, 3.6VB, 2.8VD, 5VSIM. The management of the battery charging is carried out by
internal circuit of IC100.
1.2.3
IC600
RF-IC (Hitachi HD155121FEB).
Transceiver IC for E-GSM and DCS Dual Band cellular systems.
Serial bus
Parallele bus