User's Manual
Table Of Contents
- Contents
- Tables
- Figures
- 1 Introduction
- 2 Interface Characteristics
- 2.1 Application Interface
- 2.2 RF Antenna Interface
- 2.3 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
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ELS61-AUS Hardware Interface Description
3.6 Electrostatic Discharge
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ELS61-AUS_HID_v00.031 2016-06-03
Confidential / Preliminary
Page 70 of 102
3.6 Electrostatic Discharge
The module is not protected against Electrostatic Discharge (ESD) in general. Consequently,
it is subject to ESD handling precautions that typically apply to ESD sensitive components.
Proper ESD handling and packaging procedures must be applied throughout the processing,
handling and operation of any application that incorporates a ELS61-AUS module.
An example for an enhanced ESD protection for the SIM interface is given in Section 2.1.6.1.
ELS61-AUS has been tested according to group standard
ETSI EN 301 489-1 (see Table 22) and
test standard EN 61000-4-2. Electrostatic values can be gathered from the following table.
Note: The values may vary with the individual application design. For example, it matters
whether or not the application platform is grounded over external devices like a computer or
other equipment, such as the Gemalto reference application described in Chapter 5.
3.6.1 ESD Protection for Antenna Interfaces
The following Figure 39 shows how to implement an external ESD protection for the RF anten-
na interfaces (ANT_MAIN and ANT_DRX) with either a T pad or PI pad attenuator circuit (for
RF line routing design see also Section 2.2.3).
Figure 39: ESD protection for RF antenna interface
Recommended inductor types for the above sample circuits: Size 0402 SMD from Panasonic
ELJRF series (22nH and 18nH inductors) or Murata LQW15AN18NJ00 (18nH inductors only).
Table 15: Electrostatic values
Specification/Requirements Contact discharge Air discharge
EN 61000-4-2
Antenna interfaces ±1kV n.a.
Antenna interfaces with ESD pro-
tection (see Section 3.6.1)
±4kV ±8kV
BATT+ ±4kV ±8kV
JEDEC JESD22-A114D (Human Body Model, Test conditions: 1.5 kΩ, 100 pF)
All other interfaces ±1kV n.a.
Main/Diversity
Antenna
18pF
22nH
ANT_MAIN/
ANT_DRX
(Pad 59/56)
18pF
T pad attenuator circuit
Main/Diversity
Antenna
18nH
ANT_MAIN/
ANT_DRX
(Pad 59/56)
4.7pF
PI pad attenuator circuit
18nH