Specifications
Table Of Contents
- Contents
- Tables
- Figures
- 1 Introduction
- 2 Interface Characteristics
- 2.1 Application Interface
- 2.1.1 Pad Assignment
- 2.1.2 Signal Properties
- 2.1.3 USB Interface
- 2.1.4 Serial Interface ASC0
- 2.1.5 Serial Interface ASC1
- 2.1.6 Inter-Integrated Circuit Interface
- 2.1.7 UICC/SIM/USIM Interface
- 2.1.8 Enhanced ESD Protection for SIM Interfaces
- 2.1.9 Digital Audio Interface
- 2.1.10 Analog-to-Digital Converter (ADC)
- 2.1.11 RTC Backup
- 2.1.12 GPIO Interface
- 2.1.13 Control Signals
- 2.1.14 JTAG Interface
- 2.1.15 eMMC Interface
- 2.2 GSM/UMTS/LTE Antenna Interface
- 2.3 GNSS Antenna Interface
- 2.4 Sample Application
- 2.1 Application Interface
- 3 GNSS Interface
- 4 Operating Characteristics
- 5 Mechanical Dimensions and Mounting
- 6 Regulatory and Type Approval Information
- 7 Document Information
- 8 Appendix
Cinterion
®
ALAS5V Hardware Interface Description
4.2 Power Up/Power Down Scenarios
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ALAS5V_HID_v00.030a 2019-03-20
Confidential / Preliminary
Page 74 of 124
Figure 29: Signal states during turn-off procedure
Note 1: VEXT can be used in solutions to prevent back powering (see also Section 2.4.1).
It should have a level lower than 0.3V after module shutdown.
Note 2: After module shutdown by means of AT command, i.e., after the VEXT level went
below 0.3V, please allow for a time period of at least 1 second before restarting the
module.
4.2.3.2 Restart ALAS5V Using AT Command
The best and safest approach to restart ALAS5V is by AT command. For more information on
the AT^CFUN command please refer to is described in detail in [1].
PWR_IND
Digital outputs
VEXT
Inputs driven by application
BATT+ driven by application
Start shutdown
Deregister from network, system shut down
approx. 20s