Motorola AT Commands G24-L Technical Information download pdf (Page 74)

Battery Charger Interface

48 G24-L Module Hardware Description November 15, 2008

The battery and charger interface signals are described in the table below:

The battery charger connectivity is depicted in Figure 2-26.

Figure 2-26: Battery and Charger Interface Connectivity

Table 2-23: Battery and Charger Interface Signals

Pin # Signal Name Description

1-4 GND Module Ground

Connect to battery BATT(-) contact.

5-8 VCC

Module Supply

Connect to battery BATT(+) contact.

VBUS

IGN

External charger input

VBUS and IGN signals are connected

internally in the G24-LC.

47 ADC3

Battery temperature measurement.

Connect to thermistor at battery

THERM contact.

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Technical Information 1
Copyrights 2
Computer Software Copyrights 2
Trademarks 3
Table of Contents 5
Table of Contents 6
List of Figures 9
List of Tables 11
Manual Scope 13
Target Audience 13
Manual Organization 13
Applicable Documents 14
Regulatory Requirements 14
User Operation 15
Antenna Installation 15
Standards 16
Contact Us 16
Text Conventions 17
General Safety 18
Batteries 19
Dangerous procedure warnings 19
Caring for the Environment 20
Limitation of Liability 21
Warranty Notification 22
How to Get Warranty Service? 22
Claiming 23
Conditions 23
Installed Data 24
Out of Warranty Repairs 24
Revision History 25
Chapter 1: Introduction 27
Product Specifications 28
Regulatory Approvals 31
Architecture Overview 33
Digital Block 34
Analog Block 34
GSM Transceiver Block 34
Operating Modes 35
Power Supply 36
Power Consumption 37
GPRS-RMS 38
Power On/Off Operation 39
Turning the G24-L Off 41
Power Loss shut down 42
Low Power Mode 43
Terminating Low Power Mode 44
Using the WKUPI_N signal 45
Incoming Network Data 45
Data on the Serial interface 46
Real Time Clock 47
Serial Interfaces 48
SIM Interface 49
SIM Connection 50
SIM Design Guidelines 50
Audio Interface 52
Headset Microphone Port 53
Speaker Port 54
Ω at the 55
Headset Detection 56
Alert Loudspeaker Port 57
Digital Audio Interface 58
Audio Programming Interface 60
Audio Algorithms 61
Gain Control 62
Audio Design 63
Analog Ground 64
A/D Interface 65
Power Supply A/D 66
Battery Temperature A/D 66
VREF Reference Regulator 68
Wakeup Out 69
Antenna Detection 71
GPRS Detection 71
Transmission Indicator 71
General Purpose I/O 71
Antenna Interface 72
Battery Charger Interface 73
Pin # Signal Name Description 74
Battery Charging Process 75
Monitoring (Full) 76
Protection and Safety 77
Absolute Maximum Ratings 79
Environmental Specifications 80
USB_VBUS 82
SIM_PD_N 82
SIM_RST_ 82
IN-ACTIVE 85
Board Dimensions 87
Mating Connector 89
RF Connector Specifications 90
G24-L Mounting 92
Who to Contact? 93
Required Query Information 93
Motorola Workflow 94
Service Centers 95
Testing a Standalone Unit 96
Figure 5-1: Test Setup 97
Test Procedure 98
Acronyms and Abbreviations 99
Index U - U 104
6802984C05-D 106

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