Specifications
Table Of Contents
- Contents
- Tables
- Figures
- 1 Introduction
- 2 Interface Characteristics
- 2.1 Application Interface
- 2.2 RF Antenna Interface
- 2.3 GNSS Interface
- 2.4 Sample Application
- 3 Operating Characteristics
- 3.1 Operating Modes
- 3.2 Power Up/Power Down Scenarios
- 3.3 Power Saving
- 3.4 Power Supply
- 3.5 Operating Temperatures
- 3.6 Electrostatic Discharge
- 3.7 Blocking against RF on Interface Lines
- 3.8 Reliability Characteristics
- 4 Mechanical Dimensions, Mounting and Packaging
- 5 Regulatory and Type Approval Information
- 6 Document Information
- 7 Appendix
Cinterion
®
EXS62-W/EXS82-W Hardware Interface Description
3.2 Power Up/Power Down Scenarios
102
t EXS62-W_EXS82-W_HID_v01.200ee 2022-09-02
Public/ Released
Page 65 of 144
Note: During the boot up phase of the module, the fast shutdown functionality, i.e., the use of
the FST_SHDN line as described in Section 2.1.11.3, is not available. The FST_SHDN func-
tionality becomes active only at T5 (see Table 12).
In case of a power loss before the FST_SHDN line is active (T5), the data integrity is ensured
even without the FST_SHDN functionality. Once the FST_SHDN line becomes active, the line
can be used to ensure data integrity during for example a power loss scenario.
3.2.1.2 Automatic Power On
When an automatic power on circuit is required for the module application, the ON pulse must
be generated after BATT+ is applied. To achieve this, it is recommend to add a monoflop circuit.
With the initial switch on after BATT+ was applied, the pulse of the ON signal must be longer
than 1ms. Afterwards, and if the module was already turned off at least once by AT^SMSO, the
pulse of the ON signal to switch the module on must be longer than 30ms.
Figure 35 shows a suitable sample circuit.
Figure 35: Automatic switch ON circuit sample
For the sample voltage detector circuit it is recommended to use the voltage detector
NCP803SN232T1G from ON Semiconductor, and the monoflop 74LVC1G123 from Nexperia.