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1. Introduction
EG59 mobile phone is designed and developed for CDMA/GSM network.
Its main features are:
The QUALCOMM single chip QSC6085 and MediaTek MT6223D
chipset are used, which feature Zero-IF and CMOS technology,
resulting high integration and great RF performance
Memory chips are 256MByte NAND/128MByte DDR and 64M bit
NOR/32M bit PSram MCP
65k colors, 320*240 TFT color LCD display
MIDI,MMF,AAC,MP3 ringtone
Camera
T-Flash memory card
Bluetooth
Touch panel
USB storage
2. Key Design Technology
2.1. Hardware:
CDMA/GSM/Bluetooth antenna design
technology Transmit link design technology
Receive link design technology
Frequency synthesize technology
RF control software compensation technology
Integrated system control technology
LCD implementation technology Interface
circuit design technology
Low power consumption design technology
High intensity PCB design technology
Ringtone quality improve technology
Components cost control
EMC/EMI design technology