User's Manual

Cinterion
®
ELS61-AUS Hardware Interface Description
Contents
102
 ELS61-AUS_HID_v00.031 2016-06-03
Confidential / Preliminary
Page 3 of 102
Contents
1 Introduction ................................................................................................................. 9
1.1 Key Features at a Glance .................................................................................. 9
1.2 ELS61-AUS System Overview......................................................................... 12
1.3 Circuit Concept ................................................................................................ 13
2 Interface Characteristics .......................................................................................... 15
2.1 Application Interface ........................................................................................ 15
2.1.1 Pad Assignment.................................................................................. 15
2.1.2 Signal Properties................................................................................. 17
2.1.2.1 Absolute Maximum Ratings ................................................ 22
2.1.3 USB Interface...................................................................................... 23
2.1.3.1 Reducing Power Consumption............................................ 24
2.1.4 Serial Interface ASC0 ......................................................................... 25
2.1.5 Serial Interface ASC1 ......................................................................... 27
2.1.6 UICC/SIM/USIM Interface................................................................... 29
2.1.6.1 Enhanced ESD Protection for SIM Interface....................... 31
2.1.7 RTC Backup........................................................................................ 32
2.1.8 GPIO Interface .................................................................................... 33
2.1.9 I
2
C Interface ........................................................................................ 35
2.1.10 SPI Interface ....................................................................................... 37
2.1.11 PWM Interfaces .................................................................................. 38
2.1.12 Pulse Counter ..................................................................................... 38
2.1.13 Control Signals.................................................................................... 38
2.1.13.1 Status LED .......................................................................... 38
2.1.13.2 Power Indication Circuit ...................................................... 39
2.1.13.3 Host Wakeup....................................................................... 39
2.1.13.4 Fast Shutdown .................................................................... 40
2.2 RF Antenna Interface....................................................................................... 41
2.2.1 Antenna Interface Specifications ........................................................ 41
2.2.2 Antenna Installation ............................................................................ 43
2.2.3 RF Line Routing Design...................................................................... 44
2.2.3.1 Line Arrangement Examples ............................................... 44
2.2.3.2 Routing Example................................................................. 49
2.3 Sample Application .......................................................................................... 50
2.3.1 Sample Level Conversion Circuit........................................................ 52
3 Operating Characteristics ........................................................................................53
3.1 Operating Modes ............................................................................................. 53
3.2 Power Up/Power Down Scenarios................................................................... 54
3.2.1 Turn on ELS61-AUS ........................................................................... 54
3.2.1.1 Connecting ELS61-AUS BATT+ Lines ................................ 54
3.2.1.2 Switch on ELS61-AUS Using ON Signal............................. 56