Telit Wireless Solutions GE863-QUAD manuals

Telit wireless solutions GE863-QUAD User Manual (79 pages)

Brand: Telit-wireless-solutions | Category: Hardware | Size: 1.33 MB |

English

Table of contents

GE863-QUAD

1

GE863-PY

1

Hardware User Guide

1

Contents

2

1 Overview

6

2.1 PIN-OUT

7

2.2 PINS LAYOUT

10

3 Hardware Commands

11

3.2.1 Hardware shutdown

13

4 Power Supply

15

4.2 General Design Rules

16

ONLY Li-Ion battery types

18

5 Antenna

22

6 Serial Ports

23

6.1 MODEM SERIAL PORT

24

6.3 RS232 level translation

26

7 Audio Section Overview

30

EXTERNAL

31

AMPLIFIER

31

7.2 General Design Rules

35

7.3 Other considerations

35

7.4 Microphone Biasing

36

7.5 Microphone Buffering

39

8 OUTPUT LINES (Speaker)

44

8.3 General Design Rules

46

8.4 Handset Earphone Design

47

GE863-QUAD / PY

48

8.7.1 Short Description

50

(Ear_MT+” line)

51

(Ear_HF+” line)

51

9 SIM DESIGN GUIDES

52

9.4 SIM Supply

53

9.5 SCHEMATIC

53

9.6 LAYOUT

54

10 General Purpose I/O

55

11 DAC and ADC section

57

11.1.2 Enabling DAC

58

11.2 ADC Converter

59

12 Camera

60

Application Board

67

Lead-free Alloy:

68

13.2.3 Stencil

70

13.2.4 PCB pad Design

70

13.2.5 Solder paste

71

13.2.7 Packing System

74

13.2.8 Moisture Sensibility

76

15 SAFETY RECOMMANDATIONS

78

16 Document Change Log

79

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