Siemens MC55 manuály

Siemens MC55 Specifikace (108 strany)

Značka: Siemens | Kategorie: Procesory | Velikost: 1.62 MB |

Angličtina

Tabulka s obsahem

Hardware Interface Descri

1

Contents

3

Figures

5

0 Document history

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Chapter What is new

10

1 Introduction

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1.2 Terms and abbreviations

12

1.3 Type approval

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Requirements of quality

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1.4 Safety precautions

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2 Product concept

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2.2 Circuit concept

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3 Application Interface

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3.1 Operating modes

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3.2 Power supply

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3.3.1 Turn on MC55/56

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3.3.2 Turn off MC55/56

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Controlled by MC55/56

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3.3.3 Automatic shutdown

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3.3.3.5 Overvoltage shutdown

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3.5 Charging control

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Figure 9: Charging process

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3.5.4 Charger requirements

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3.6 Power saving

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AT interface disabled

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AT interface enabled

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Paging message

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3.8 RTC backup

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GSM module

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Application

53

3.10 Audio interfaces

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3.10.1 Microphone circuit

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3.10.2 Speech processing

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3.10.3 DAI timing

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T = 100ns to 5,000 ns

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3.11 SIM interface

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Molex card holder

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3.12 Control signals

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3.12.1 Inputs

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Transmit burst

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1 Tx 577 µs every 4.616 ms

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2 Tx 1154 µs every 4.616 ms

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SYNC signal

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4 Antenna interface

68

Antenna or

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4.1.1 Antenna pad

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5.2 Operating temperatures

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5.3 Storage conditions

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5.6 Power supply ratings

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Average Current GSM900 (V

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Average Current DCS1800 (V

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Average Current PCS1900 (V

86

Burst Current GSM900 (V

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Burst Current DCS1800 (V

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BATT+ nom

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5.7.4 Voiceband receive path

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5.8 Air interface

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5.9 Electrostatic discharge

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6 Mechanics

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6.3 Board-to-board connector

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6.3.2 Adapter cabling

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7 Reference Approval

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8 Design example

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Confidential / Released

106

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