Level 3 Service Manual
GALAXY ASTRAL GEO GEO WAP
1 Block Diagram
1.1Schematic
Parallele bus
Serial bus
1.2Description 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.
Mitsubishi Electric Telecom Europe SAVersion E
ZA le Piquet, 35370 EtrellesDate: 04/00
Phone: +33 2 99 75 71 00
3/29
Fax: + 33 2 99 75 71 47 |
ACEC
MITSUBISHI
