User's Manual

TOBY-R2 series - System Integration Manual

UBX-16010572 - R04 Design-in

Page 121 of 147

2.13 ESD guidelines

The sections 2.13.1 and 2.13.2 are related to EMC / ESD immunity. The modules are ESD sensitive devices, and

the ESD sensitivity for each pin (as Human Body Model according to JESD22-A114F) is specified in TOBY-R2

series Data Sheet [1]. Special precautions are required when handling: see section 3.2 for handling guidelines.

2.13.1 ESD immunity test overview

The immunity of devices integrating TOBY-R2 series modules to Electro-Static Discharge (ESD) is part of the

Electro-Magnetic Compatibility (EMC) conformity which is required for products bearing the CE marking,

compliant with the R&TTE Directive (99/5/EC), the EMC Directive (89/336/EEC) and the Low Voltage Directive

(73/23/EEC) issued by the Commission of the European Community.

Compliance with these directives implies conformity to the following European Norms for device ESD immunity:

ESD testing standard CENELEC EN 61000-4-2 [15] and the radio equipment standards ETSI EN 301 489-1 [16],

ETSI EN 301 489-7 [17], ETSI EN 301 489-24 [18], which requirements are summarized in Table 50.

The ESD immunity test is performed at the enclosure port, defined by ETSI EN 301 489-1 [16] as the physical

boundary through which the electromagnetic field radiates. If the device implements an integral antenna, the

enclosure port is seen as all insulating and conductive surfaces housing the device. If the device implements a

removable antenna, the antenna port can be separated from the enclosure port. The antenna port includes the

antenna element and its interconnecting cable surfaces.

The applicability of ESD immunity test to the whole device depends on the device classification as defined by ETSI

EN 301 489-1 [16]. Applicability of ESD immunity test to the relative device ports or the relative interconnecting

cables to auxiliary equipment, depends on device accessible interfaces and manufacturer requirements, as

defined by ETSI EN 301 489-1 [16].

Contact discharges are performed at conductive surfaces, while air discharges are performed at insulating

surfaces. Indirect contact discharges are performed on the measurement setup horizontal and vertical coupling

planes as defined in CENELEC EN 61000-4-2 [15].

For the definition of integral antenna, removable antenna, antenna port and device classification see ETSI

EN 301 489-1 [16]. For the contact / air discharges definitions see CENELEC EN 61000-4-2 [15].

Application