Baseband Overview; Introduction - Panasonic EB-G60 Service Manual

5.4. BASEBAND OVERVIEW

5.4.1. Introduction

The baseband circuits of the phone are required to perform the following functions:
8 Equalization
8 Channel coding / decoding
8 Speech coding / decoding
8 Data Encryption
8 Layer 1, 2 and 3 software tasks
8 Man Machine interface (MMI)
8 System Interface
8 SIM Interface and Management
8 Audio, and 16 Strings Melody Generation
8 Power supply and battery management
8 RF power control
8 Synchronization
8 Real time clock
Figure 5.5. : Baseband Block Diagram
The G60 Baseband is built around a GSM chipset developed by Texas Instruments. One chip (Ulysses_G2) carries out
signal processing with DSP and CPU, and the other chip (IOTA) provides the analogue interface. The highly integrated
nature of the chips means that each can contain a large number of functions.
– 5–12 –