User's Manual
Table Of Contents
- GC864 QUAD V2andGC864 DUAL V2Hardware User Guide
- APPLICABILITY TABLE
- 1 Introduction
- 2. Overview
- 3. GC864 Mechanical Dimensions
- 4. GC864-QUAD V2 / GC864-DUAL V2 Module Connections
- 5. Hardware Commands
- 6. Power Supply
- 7. Antenna
- 8. Logic Level Specifications
- 9. Serial Ports
- 10. Audio Section Overview
- 11. General Purpose I/O
- 11.1. GPIO Logic Levels
- 11.2. Using a GPIO Pad as INPUT
- 11.3. Using a GPIO Pad as OUTPUT
- 11.4. Using the RF Transmission Control GPIO4
- 11.5. Using the RFTXMON Output GPIO5
- 11.6. Using the Alarm Output GPIO6
- 11.7. Using the Buzzer Output GPIO7
- 11.8. Magnetic Buzzer Concepts
- 11.9. Using the Temperature Monitor Function
- 11.10. Indication of Network Service Availability
- 11.11. RTC Bypass Out
- 11.12. DAC Converter
- 11.13. ADC Converter
- 12. Assembly the GC864-QUAD V2 / GC864-DUAL V2 on the Board
- 13. Packing System
- 14. Conformity Assessment Issues
GC864 Hardware User Guide
1vv0300874 Rev.0 – 2010-01-25
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved. Page 22 of 64
6. Power Supply
The power supply circuitry and board layout are a very important part in the full
product design and they strongly reflect on the product overall performances, hence
read carefully the following requirements and guidelines for a proper design.
6.1. Power Supply Requirements
Condition Value
Nominal Supply Voltage 3.80 V
Normal operating Voltage Range 3.40 V - 4.20 V
Extended operating Voltage Range 3.22 V – 4.50 V
The GC864-QUAD V2 / GC864-DUAL V2 power consumptions are:
GE864-QUAD V2 / GE864-DUAL V2
Mode
Average
(mA)
Mode description
SWITCHED OFF
Switched Off <62 uA
Module supplied but Switched Off
IDLE mode
AT+CFUN=1 19.0
Normal mode: full functionality of the module
AT+CFUN=4 18.0
Disabled TX and RX; module is not registered on the network
3.9 Paging Multiframe 2
2.9 Paging Multiframe 4
2.1 Paging Multiframe 6
1.9 Paging Multiframe 8
AT+CFUN=0 or =5
1.6 Paging Multiframe 9
CSD TX and RX mode
GSM900 CSD PL5 300
DCS1800 CSD PL0 200
GSM VOICE CALL
GPRS (class 10) 1TX
GSM900 PL5 260
DCS1800 PL0 170
GPRS Sending data mode
GPRS (class 10) 2TX
GSM900 PL5 470
DCS1800 PL0 300
GPRS Sending data mode