L
LE920 Hardware User Guide
1vv0301026 Rev.0 - draft4 – 2013-05-
Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved.
Page 5 of 76
Contents
1.
Introduction ........................................................................................................... 9
1.1.
Scope ............................................................................................................................ 9
1.2.
Audience ....................................................................................................................... 9
1.3.
Contact Information, Support ...................................................................................... 9
1.4.
Document Organization ............................................................................................. 10
1.5.
Text Conventions ........................................................................................................ 11
1.6.
Related Documents ................................................................................................... 11
2.
General Product Description ................................................................................ 12
2.1.
Overview ..................................................................................................................... 12
2.2.
LE920 Mechanical Dimensions .................................................................................. 13
2.3.
Weight ........................................................................................................................ 13
2.4.
Environmental requirements .................................................................................... 14
2.4.1.
Temperature range ........................................................................................................ 14
2.4.2.
RoHS compliance ........................................................................................................... 14
2.5.
Operating Frequency ................................................................................................. 15
2.5.1.1.
WCDMA1700 – B4
.................................................................................................. 15
2.5.1.2.
(LE920-NA only)
...................................................................................................... 15
2.5.1.3.
1710 ~ 1755
.............................................................................................................. 15
2.5.1.4.
2110 ~ 2155
.............................................................................................................. 15
2.5.1.5.
Tx: 1312 ~ 1513
........................................................................................................ 15
2.5.1.6.
Rx: 9662 ~ 9938
....................................................................................................... 15
2.5.1.7.
400 MHz
.................................................................................................................. 15
3.
LE920 Module Connections .................................................................................. 17
3.1.
PIN-OUT ..................................................................................................................... 17
3.1.1.
LGA Pads Layout ............................................................................................................ 24
4.
Hardware Commands .......................................................................................... 25
4.1.
Turning ON the LE920 ................................................................................................ 25
4.2.
Initialization and Activation state ............................................................................... 25
4.3.
Turning OFF the LE920 .............................................................................................. 27
4.3.1.
Shutdown by Software Command .................................................................................. 28