Panasonic G600 Technical Manual

Also see for EB-CR600: Service manual Service manual Service manual

Contents

http://cxema.ru6 BASEBAND OVERVIEW6.1 IntroductionAll Baseband circuitry is contained on one PCB. The Baseband PCB has six layers made from FR4 material. Topand bottom layers are gold-plated to prevent oxidization and enable better soldering. The board thickness is 1.0mm(+0.0, -0.1mm).The Baseband board is connected to the RF board via a 50 way dual in line connector.A metallised plastic chassis is used to separate the Baseband and the RF PCB’s. The continuous chassis design isimportant for EMC purposes. When the chassis is sandwiched between the Baseband and the RF PCB’s theground plane of the RF board together with the chassis forms an effective shielded enclosure, which preventsspurious emissions.6.2 Functional DescriptionThe G600 baseband is based around a 2 chip GSM chipset. One chip carries out signal processing with DSP andCPU, called GEMINI, and the other chip contains the analogue interface chip, called VEGA. The highly integratednature of these components means each contain a large number of functions.Figure 1: Baseband Block Diagram 600-0601MCUK980101G8 Section 6 Issue 1Technical Guide 6 - 1 Revision 0BASEBAND OVERVIEWGEMINITIMERTDMAGSMTPUDSPCORESIMI/FJTAGDSP ROMDSP RAMIRQMEMI/FSERIAL I/FI/OPWMUARTARM3V to 5VDC/DCSIMCONNECTORRAM256k x 8FLASH1M x 16VOICEMEMOEEPROM2k *8 serialKEYPADBACKLIGHT VOLTAGEREGULATORVEGA TIMING JTAG10 bitDACSP INTERFACERF INTERFACEBATTERY HANDS FREEINTERFACEI TXQ TXI RXQ RXPA RAMPTCVCXO CONTROLTCVCXO TEMPAUDIO OUTAUDIO INRADIO MUTEIGNITIONEXTERNAL POWERUART INUART OUT3VPOWER KEY