SIM Tech SIM900D HD Manuals

Manuals and User Guides for SIM Tech SIM900D HD. We have 1 SIM Tech SIM900D HD manual available for free PDF download: Manual

SIM Tech SIM900D HD Manual

SIM Tech SIM900D HD Manual (61 pages)

Brand: SIM Tech | Category: GSM/GPRS Modules | Size: 1 MB

Table of Contents

Table of Contents
3
Contents
3
Version History
7
1 Introduction

8
- Related Documents
  8
- Terms and Abbreviations
  9
- Safety Precautions
  11
2 SIM900D Overview

13
- SIM900D Key Features
  13
- SIM900D Functional Diagram
  15
- SIM900D Evaluation Board
  16
- Figure2: Top View of Sim900D Evb
  17
3 Application Interface

18
- SIM900D Pin Description
  18
- Operating Modes
  21
- Power Supply
  22
  - Power Supply Pins
    23
  - Minimizing Power Losses
    23
  - Monitoring Power Supply
    24
- Power up and Power down Scenarios
  24
- Charging Interface
  28
- Power Saving
  32
- Summary of State Transitions (Except SLEEP Mode)
  33
- RTC Backup
  34
- Figure14: Rtc Supply from Rechargeable Battery
  35
- Serial Interfaces
  36
- Audio Interfaces
  40
- SIM Card Interface
  44
  - SIM Card Application
    44
  - Design Considerations for SIM Card Holder
    45
- LCD Display Interface
  46
- Adc
  46
- Behaviors of the RI
  47
- Network Status Indication
  48
- General Purpose Input Output (GPIO)
  48
- Pwm
  49
- Table21: Pin Definition of the Gpio Interface
  49
4 Antenna Interface

50
5 Electrical, Reliability and Radio Characteristics

51
- Absolute Maximum Ratings
  51
- Operating Temperatures
  51
- Power Supply Ratings
  52
- Current Consumption
  53
- Electro-Static Discharge
  54
6 Mechanics

55

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