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Table of Contents
INTRODUCTION ........................................................................................................................................................................ 4
1 .HARDWARE SYSTEM INTRODUCTION .................................................................................................................................. 5
1.1 The framework of the hardware system ....................................................................................................................... 5
1.2 Studio 5.0S Main Components ...................................................................................................................................... 6
2. The detail of system’s modules ........................................................................................................................................... 9
2.1 RF module ...................................................................................................................................................................... 9
2.1.1 Transceiver .............................................................................................................................................................. 9
2.1.2 GSM signal’s path .................................................................................................................................................... 9
2.1.3 WCDMA signal’s path ........................................................................................................................................... 11
2.2 PMU ............................................................................................................................................................................. 14
2.2.1 The timing of system’s boot.................................................................................................................................. 14
2.2.2 The voltages put out from PMU ........................................................................................................................... 14
2.3 Memory ....................................................................................................................................................................... 15
2.4 Audio module ............................................................................................................................................................... 16
2.4.1 Microphone circuit ................................................................................................................................................ 16
2.4.2 Earpiece circuit ...................................................................................................................................................... 17
2.4.3 Speaker circuit ...................................................................................................................................................... 17
2.4.4 Audio Jack circuit .................................................................................................................................................. 18
2.5 Other peripherals ......................................................................................................................................................... 19
2.5.1 Vibrator ................................................................................................................................................................. 19
2.5.2 Touch panel circuit ................................................................................................................................................ 19
2.5.3 Camera interface circuit........................................................................................................................................ 20
2.5.4 Light sensor circuit ................................................................................................................................................ 21
2.5.5 G-sensor circuit ..................................................................................................................................................... 21
2.5.6 BT&WIFI module circuit ........................................................................................................................................ 21
2.5.7 GPS ........................................................................................................................................................................ 23
2.5.8 LCD ........................................................................................................................................................................ 24
2.6 Peripheral interface circuit ....................................................................................................................................... 25
2.6.1 USB interface ........................................................................................................................................................ 25
2.6.2 Volume key ........................................................................................................................................................... 25
2.6.3 T-flash card and USIM card interface ................................................................................................................... 25
