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 63 of 144
3.2 Power Up/Power Down Scenarios
Do not turn on EXSx2-W while it is beyond the safety limits of voltage stated in Section 2.1.2.1.
EXSx2-W immediately switches off after having started and detected these inappropriate con-
ditions. In extreme cases this can cause permanent damage to the module.
3.2.1 Turn on EXSx2-W
EXSx2-W can be turned on as described in the following sections:
• Hardware driven switch on by ON signal: Starts Normal mode (see Section 3.2.1.1 as well
as Section 3.2.1.2 (for automatic power on)).
After startup or restart, a high level of the V180 and VCORE lines, as well as the URC ^SYS-
START send by the module indicate that the module has started up (again). The URC notifies
the host application that the first AT command can be sent to the module (see also [1]).
3.2.1.1 Switch on EXSx2-W Using ON Signal
The ON signal switches the module on, if the module is in POWER DOWN mode (or in SUS-
PEND mode - see Section 3.3.1). This signal is a rising edge sensitive signal. The maximum
input voltage can be BATT+. The module starts in the operating mode with a rising edge signal
at the ON signal. Note that switching on the module via ON signal is only allowed within the
regular voltage and temperature ranges specified in Section 3.4.1 and Section 3.5. Switching
the module ON when the voltage supply or temperature is out of range might harm the module.
The following Figure 33 illustrates the recommended power on circuit, Figure 34 and Table 12
show the start-up behavior and timings if ON valid. Please note that the power on circuit is not
optimized with regard to ultra low power consumption.
Figure 33: Sample ON circuit
Recommended ratings: R1 = 150k, R2 = 22k, and R3 = 10k
VBATT+
R1
R2
R3
IGT
ON