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
- 4.1 Mechanical Dimensions of TX62-W
- 4.2 Mechanical Dimensions of TX82-W, TX82-W-B, TX62-W-B and TX62-W-C
- 4.3 Mounting TX62/TX82 onto the Application Platform
- 4.4 Packaging
- 5 Regulatory and Type Approval Information
- 6 Document Information
- 7 Appendix
Cinterion
®
TX62-W/TX82-W Hardware Interface Description
3.2 Power Up/Power Down Scenarios
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t TX62-W_TX62-W-x_TX82-W-x_HID_v01.200d 2022-09-08
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Page 75 of 170
3.2 Power Up/Power Down Scenarios
Do not turn on TX62/TX82 while it is beyond the safety limits of voltage stated in Section
2.1.2.1. TX62/TX82 immediately switches off after having started and detected these inappro-
priate conditions. In extreme cases this can cause permanent damage to the module.
3.2.1 Turn on TX62/TX82
TX62/TX82 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 TX62/TX82 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.
The following Figure 36 illustrates the recommended power on circuit, Figure 37 and Table 16
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 36: Sample ON circuit
Recommended ratings: R1 = 150k, R2 = 22k, and R3 = 10k
VBATT+
R1
R2
R3
IGT
ON