User's Manual

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