User's Guide

LM940 HW Design Guide
1VV0301352 Rev. 2 Page 5 of 68 2017-07-19
Contents
NOTICE 2
COPYRIGHTS .................................................................................................. 2
COMPUTER SOFTWARE COPYRIGHTS ....................................................... 2
USAGE AND DISCLOSURE RESTRICTIONS ................................................ 3
APPLICABILITY TABLE .................................................................................. 4
CONTENTS ...................................................................................................... 5
1. INTRODUCTION ............................................................................ 9
Scope ............................................................................................. 9
Audience ........................................................................................ 9
Contact Information, Support ......................................................... 9
Text Conventions ......................................................................... 11
Related Documents ...................................................................... 12
2. GENERAL PRODUCT DESCRIPTION ........................................ 13
Overview ...................................................................................... 13
Product Variants and Frequency Bands ....................................... 13
2.2.1. RF Bands per Regional Variant .................................................... 13
Target market ............................................................................... 14
Main features ................................................................................ 14
Block Diagram .............................................................................. 16
TX Output Power .......................................................................... 17
RX Sensitivity ............................................................................... 17
Mechanical specifications ............................................................. 18
2.8.1. Dimensions ................................................................................... 18
2.8.2. Weight .......................................................................................... 18
Environmental Requirements ....................................................... 18
2.9.1. Temperature Range ..................................................................... 18
2.9.2. RoHS Compliance ........................................................................ 19
3. PINS ALLOCATION .................................................................... 20
Pin-out .......................................................................................... 20
LM940 Signals That Must Be Connected ..................................... 24
Pin Layout .................................................................................... 25