Product Info
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
®
TX62-W(-B/-C)/TX82-W Hardware Interface Description
3.2 Power Up/Power Down Scenarios
109
t TX62-W_TX62-W-x_TX82-W_HID_v01.000 2021-05-19
Confidential / Preliminary
Page 71 of 154
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).
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 34 and Figure 35 show the recommended power on circuit and the start-
up timings if ON valid.
Figure 34: Sample ON circuit
ON
R2
R1
VBATT+
IGT