User's Guide

UC864-E-AUTO / AWS-AUTO Hardware User Guide
1vv0300795 Rev.11 – 2010/11/18
Reproduction forbidden without Telit Communications S.p.A’s. written authorization - All Rights Reserved. Page 22 of 78
6. Power Supply
Power SupplyPower Supply
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. Read
carefully the requirements and the guidelines that will follow for a proper design.
6.1. Power Supply Requirements
The UC864-E-AUTO / AWS-AUTO power requirements are:
Power Supply
Power SupplyPower Supply
Power Supply
Nominal Supply Voltage 3.8V
Max Supply Voltage 4.2V
Supply Voltage Range 3.4V – 4.2V
UC864
UC864UC864
UC864-
--
-E
EE
E-
--
-AUTO
AUTOAUTO
AUTO/ AWS
/ AWS/ AWS
/ AWS-
--
-AUTO
AUTOAUTO
AUTO
Mode
ModeMode
Mode Average(mA)
Average(mA)Average(mA)
Average(mA) Mode D
Mode DMode D
Mode Description
escriptionescription
escription
IDLE mode Stand by mode; no call in progress
AT+CFUN=1
WCDMA 22.0
Normal mode; full functionality of the module
GSM 15.0
AT+CFUN=4
WCDMA 17.8
Disabled TX and RX; modules is not registered on the
network
GSM 17.8
AT+CFUN=0 or
AT+CFUN=5
WCDMA 4.1 / 1.3*
Power saving; CFUN=0 module registered on the
network and can receive voice call or an SMS; but it is
not possible to send AT commands; module wakes up with
an unsolicited code (call or SMS) or rising RTS line.
CFN=5 full functionality with power saving;
Module registered on the network can receive
incoming call sand SMS
GSM 3.3 / 1.3*
WCDMA TX and RX mode
WCDMA Voice 690 WCDMA voice channel
WCDMA data 680 WCDMA data channel
HSDPA 730 HSDPA data channel
GSM TX and RX mode
GSM Voice 320 GSM voice channel
GPRS Class12 650 GPRS data channel
EDGE Class12 430 EDGE data channel
* Worst/best case depends on network configuration and is not under module control.